Revealing “El Mechudo’s” True Killer

May 15

And here I am again, adding the finishing touch on what is my version of the legend of "El Mechudo". My story is different from all previously released versions, as it has no supernatural elements (“Satanic intervention”).

To add this new twist on the old legend, I will present the evidence used throughout this Blog’s series of "The Legend of El Mechudo": from the place where these events unfold, to the demystification of the "claws of death" and now the “silent killer” (in this case: it is not stress). I -for one-  simply cannot believe that an experienced diver was caught by a pearl oyster and then he just drowned. It takes something much more lethal than a pearl oyster to drown a proffessional pearl diver.

Therefore: if it was not the Devil himself nor a pearl oyster… What really caused the tragic death of "El Mechudo"?

 


As Delilah to Samson

Just as the biblical Samson, our mythical diver had a magnificent mane of hair which probably had some special meaning to him. And I have reasons to believe that his long hair was partially responsible for his untimely death. If Delilah was the one responsible for bringing about Samson’s misfortune, who was this Sonoran diver’s Delilah? Let us review a bit about the pearl oyster’s natural history to better understand what might have happened.

 


Habitat of the “Panamic Black-Lip Oyster”

The Black Lip Pearl Oyster -known as "Madreperla" in Mexico- is Pinctada mazatlanica, a bivalve that is found attached -by means of its byssus-to rocks, encrusting corals and other bivalves. As it was shown in the previous post’s video, it is not very difficult to detach them from their anchoring spot. As for the oyster’s habitat: I really do not percieve any danger for a long-haired diver here.

Do remember that “El Mechudo” is said to have secured his long-hair (probably with some rope or even turning his own hair into a knot), but it is not difficult to imagine it could have come loose after hours of diving. Here is where the danger truly resides.


For anyone who has dived or snorkeled in the waters of the Gulf of California, is easy to remember that there’s really nothing in the water or the sea-bed that can entangle you. Due to the lack of rivers reaching the Gulf, there are few contributions of earth-bound material such as tree branches and shrubs,  and it is not easy to entangle your hair between stones, so where’s the danger? Let us analyze the next species and its habitat.

 

The Habitat of the “Rainbow Lip Oyster”

The “Concha Nácar” or “Rainbow Lip Oyster” (Pteria sterna) is a very special animal in regard to its "taste" for settlement. It is adapted to a wide variety of habitats: rocky and coral reefs, on top of the shell of other bivalves, forming "carpet clumps" on sandy-muddy areas and –especially- they can be found living on gorgonian -or fan- corals. Additionally, their byssus is much more stronger than that of the Black-lip pearl oysters, and it takes a lot more effort to detach them from their anchoring spot.

 

Final Remarks & Video

A fan coral is the “perfect trap” for a long-haired pearl diver. During the shooting of the video about this legendary character I used a doll with a “wig” (one of the most difficult things I’ve recently done: I’d rather juggle with sea urchins anytime), and everytime the fake hair was near the fan coral it would easily entangle itself, becoming a small burden to dissentangle the hair for a new video shoot.

Additionally: I have a video that shows how an oyster is unable to keep their shells closed on an object for more than just a couple of hours. The test was performed, with the help of my assistant Antonio "El Tigre" Mendoza, who helped to perform experiments  -both under natural & “laboratory” conditions- and we obtained consistent results in “oyster retention”: usually of less than 60 minutes on each tryout.

The following video was produced in order to show you how the oyster releases its grip after some time. For this I used one of my son’s “GI Joe” action figure, around which we devised a floating system (to simulate the upward flotation pull of a victim) and continuous video filming was performed until the oyster released its “little victim”. As a note of interest, you will notice that there are a couple of “curious sea-hares” (Aplysia californica) that appear during the video…this might be as close as they can get to become part of a “feature film”, hence the attraction (I guess).

Thus, based on all the information we have talked about during this series of blog entries (and in the best “Clue” game fashion) I dare say the following:

“El Mechudo” dove to deeper waters to try and release a “Rainbow Lip Oyster” that was attached to a large fan coral (these large specimens are usually found in deeper, colder, waters) but his hair became entangled. He could not use a knife to cut his hair free (because slave divers were not given such a weapon)…thus the great Yaqui diver drowned. Satan must be declared blameless of this accident.

The only way the body of this diver could have remained in the same site for days or weeks (once the body fills with gases form decomposition it would float away) is if it was firmly attached to a coral…any oyster would have released the hand of a dead diver within hours.

Next Blog Entry

I will release a cartoon-like video of my personal adaptation of this local legend which I have fondly called “El Mechudo Reloaded”.

The Legend of “El Mechudo”: the myth of the Killer Oyster

Mar 24

And here I am back, with a strong desire to revisit the series of posts about the legendary pearl diver knows as "El Mechudo", and on this instance we will cover the most grim and tragic event from the history of this legend: the death of this blasphemous Yaqui pearl diver.

The last time we dealt with this subject was back in January 6th with the entry of “Who was ‘El Mechudo’?”, and on that occasion we detailed the possible site from where the pearl oysters where being fished and where this legendary diver is said to have drowned. Now comes the time to analyze and dissect the manner of his tragic death by reviewing several versions of this legend:


“One of the many Yaqui indians -before he slid into the watery embrace to find the pearl that belonged to the Virgin- said “I am claiming the pearl for the Devil”… Chronicles tell us that the unfortunate man never came out of the sea and that all his companions fled in terror and commenting on the outcome of that terrible blasphemy.” (Author and Date unknown)

Another version of the event, cited by Fernando Jordan (1967) even mentions that:

Satan took the fisherman’s word, and the fisherman did not reappear and the waters did not return his body. The place is now taboo and no one goes there to fish for pearls. Those who have seen -at the bottom- the ghost of the blasphemous diver, who has grown long haired and beard. He seems alive and in his hand he holds a huge Black-lip pearl oyster shell.

Or even this version, that I personally heard –totally devoid of the supernatural-in La Paz about 10 years ago, and which I have adapted as follows:

‘El Mechudo’ went once more into the salty embrace of those turquoise waters…never coming out again. But there was no time to find out what had happened to him…bad weather just made it impossible. The next morning the fishing armada made it to the same spot and the divers plunged into the waters. A certain diver screamed out "I found him! I found him!" and every single diver moved into that spot. What they saw was a spectral image: the lifeless body of "El Mechudo" still clutching the giant oyster that had caught his hand in self-defense… his long hair had come loose and flowed all around him.

The very obvious cause of death of the legendary diver is by drowning, and this could have occurred due to many causes: fatigue, vascular problems, he could have become "entangled" in some way or have suffered the attack of an animal. The legend somehow suggests that the pearl oyster might have had something to do with his death: that the diver’s hand had been captured by the oyster, preventing him from surfacing. But in addition, we understand that there is a permanence of the drowned diver on the site, his body being found there later… and this in turn ends the legend with a “haunted pearl bed”, an accursed ghost that scares off all other divers.

So, the death of “El Mechudo” leads us to the myth of the “killer clam”, the basic premise being a clam -or pearl oyster- that is big and heavy enough to keep a diver from surfacing…just long enough for him to drown. And in this case the oyster is also able of keeping the captured hand (alongside the rest of the body) clutched down a sufficient amount of time (at least over 24 hours) for the other divers to find his a body in the same spot. This would give rise to the myth of the “Murderous Oyster” (to give it a quirky adjective). Is this possible at all? Can an oyster keep a man trapped that long? Let us find out…


 

The "Mortal Clamp"

Pearl oysters are bivalve mollusks that have a strong adductor muscle which is used to achieve the closure of its two shells, this is used in order for the oyster to protect itself and avoid being eaten by predators; a bivalve’s life is partially dependent on its ability to close and keep its shells closed. If we introduce our fingers into an oyster it will certainly close its valves and it will clamp our hand… and what happens if we cannot release from its hold? In a few minutes we will drown.

Now, even if the oyster closes its shell with our hand in it, what prevents us from simply coming up with the oyster to the surface? Well, oysters are strongly attached to their living place (usually on rocks, corals and other shells) by means of a myriad of thin, elastic fibers referred to as "byssal threads" which are secreted by the byssal gland. These fibers look a bit like plastic, are somewhat elastic and very resistant, but will it be able to securely anchor the oyster when a person is desperately fighting for dear life?

To answer both questions, I conducted the following “experiment”: I went “pearl diving” securing several Black lip pearl oysters (Pinctada mazatlanica), and intentionally placing my fingers inside them to simulate the “mortal clamp” and then it was a matter of coming out with my life. The result of this simple experiment can be seen in this short video:

The Killer Clam or Deadly Clamp Myth

 


Results:

The first fishing event –described as “Capture #1” in the video- shows the usual living place for black-lips in Guaymas: attached to rocky reefs at depths ranging from almost surface level and down to some 10 meters in depth (20 feet). The oysters are now –once again- seen forming small clusters, and several of these make up for a pearl bed. I dislodged oysters quite easily…in just seconds and with no effort.

Fishing event "Capture # 2", was carried out at a depth of 4 meters (13 feet), on sandy bottom (but littered with pebbles and shell bits of various bivalves). On this substrate, pearl oysters usually attach to shells and on the video it is clearly visible how the oyster is easily released and comes up with a fragment of a “pen shell”. The oyster measured 10 cm (4 inches) in diameter and had another -smaller- pearl oyster “piggy-backing” on its shell.

In the third fishing event (capture #3), at a depth of only 3 meters (9.8 feet), we had an area of overlapping environments: mainly sandy bottom, but with the presence of encrusting corals and a small rocky reef nearby. I located a small group of black-lips and it was extremely easy to release a group of three oysters simultaneously.

And finally, I introduced my fingers several times inside different black-lip oysters and every time I obtained the same result: the oysters quickly closed their shells on my fingers and they held me as hard as it was possible for them, yet it was very easy to release my fingers in just seconds, thus my life was never in any danger. Just in case my mother or my wife ever read this blog entry: these experiments were performed at a depth of just a mere 1.50 meters (4.9 feet), so I was never under any duress nor undue risk.


Discussion

How did the myth of the "Mortal Clamp" or of the "Killer Clam" (or whatever name you want to give it) emerge? Well, there are other varieties of bivalves in the World’s oceans, some being HUGE in size and of very HEAVY weight, which are quite capable of keeping a man stuck long enough to drown him. In fact, a there exists a particular animal known as the "giant clam" (Tridacna gigas), that is sometimes referred of as a “killer clam” (perfect title for a future Hollywood film), which inhabits the Indo-Pacific ocean, and which is perfectly suited to become a nightmare for any pearl diver. Just look at this cute photograph (taken from this page):

Wikipedia’s website even mentions that a U.S. Navy diver’s manual includes a technique that can be used by divers to rid themselves of the deadly clamp of this species of clam, and refers to the death of a Phillipino pearl diver which drew the gigantic “Pearl of Lao Tzu”, a huge calcareous concretion (or non-nacreous pearl) that was obtained from one of these giant clams.


Conclusion

  1. It’s really not all that difficult to fish for pearl oysters, given that there is sufficient abundance of them; the hardest thing about “pearl diving” will be the depth you have to dive down to in order to extract them and this only if you are using your lung capacity.
  2. There is no real danger of drowning once you are “captured” by a black-lip’s valves: its “claw of death” lacks the necessary strength to maintain an unbreakable grip. Furthermore: it is not difficult to remove them from their attachment point in the unlikely case they do.
  3. Until next time…

A Special Guest – Part 2

Mar 5

“A Tiger loose on the Farm”

And on this new post we continue with the description of Jesus “El Tigre” Mendoza’s activities at our Pearl Farm:

All my life I have lived in Guaymas, yet I did not know that there was a place where animals were cultivated for the production of pearls. Of course I knew about edible oyster and shrimp farms,  but I never imagined that we had a pearl farm, right here in Guaymas! but we had all heard the faint rumors. It was not until November 2010, when –while attending ITSON- I had a course named “Natural and Cultural Attractions”, the course’s professor being one of the Pearl Farm’s owners. Our new teacher -Douglas McLaurin Moreno- took the whole group for a field trip to this “farm” and was here that I learned how to they raised the “pearl oysters” for the production of cultured pearls.

Cultural & Natural Attractions Group 2010

It was a great experience to learn about pearl farming. And then, after almost two years of having visited the site, I finally had the opportunity to “work” here doing my “professional stays” at the pearl farm; in January of this year I became a key part of several research projects for the company, including one that aims to monitor the many marine species that grow alongside the oysters in the pearl culturing cages.

ITSON Students working at Pearl Farm & Jewelry store

From that moment I began to understand the great importance of having a pearl farm in Guaymas, and later I began to think that this benefit is not solely for Guaymas, but for the entire Sea of Cortez. When we take the culture cages from out of the sea, to evaluate the growth of the “Rainbow Lip Oysters” (also known as Pteria sterna) there is always a great host of marine fauna  alongside the farm-raised mollusks; it was impressive to see that in a such a small space –that of the cage- you can find such a great variety of animal species, in what appears to be complete harmony.

So I was tasked to keep track of all these species, keeping track of all vertebrate (fish) and invertebrate fauna: the different species found as well as their number, but being specially on the lookout for these 3 main species: the “Panamic Black Lip Pearl Oyster” (Pinctada mazatlanica), the “Pen Shells” (Atrina maura, Pinna rugosa) and the “Sea cucumbers” (holothurians). I still monitored dozens of other species such as: crustaceans (Spiny Lobsters, pistol shrimps, banded ghost shrimps -Lysmata californica- and swimming crabs), several fishes (Angel fishes, Soap-fishes, Groupers, Snappers, Catfishes, Eels & Blennies) bivalves (mussels, scallops, Blood Cockles, Chocolate clams) and many others.

Gulf of California native species
It was very interesting to notice how many of these species grow, some even attaining large dimensions -as in the case of the Sea Cucumbers- of up to 20 centimeters (7.8 inches) in length. Holothurians are animals commonly known as “sea cucumbers”, due to their elongated bodies with a shape similar to that of that vegetable. They are related to starfish and sea urchins (Echinoderms).

Holothurians, have a very important biological function in coastal areas: they clean the seabed of those accumulated organic wastes. They belong to a group of animals referred to as bottom-feeders: they just basically eat the organic material found within the sediment (sand), and what they excrete is just clean sand, without any organic matter. And here why these animals have such a great biological importance: if a bay has an adequate amount of sea cucumbers, its sand will remain cleaner and we will be able to enjoy white sand, not the “dark and sticky” sand we sometimes find in some areas. This is what I was told here at the farm: that these animals are providing us all of with this free environmental service.

Hundreds of farm-raised Sea Cucumbers

Just in the month of January, this pearl farm was able of “rescuing” (meaning: they were returned to their natural environment) some 2,262 sea cucumbers, which averaged 11 cm (4.3 inches) in length; if these creatures had been returned to their environment while still young they would have had become food for predators since their defense mechanism is not yet sufficiently developed (when a sea cucumber is attacked, it can expel its viscera (guts) which are sticky and mildly-toxic, but the sea cucumber does not die because it can regenerate its guts in a few days and just like that), but by growing them in a farm they will be able to escape their natural predators.

Although in Mexico Sea Cucumbers are not considered valuable (because people here do not eat them nor can they be used for souvenirs), in many Asian countries (such as China, Japan and Korea) they are used in their cuisine and they are also considered to be an aphrodisiac. Such is their demand in Asia that they have been fished out of our waters, these animals no longer doing their environmental service for us.

Pearl Culture CageSo this is where I began to understand the other great benefit of this pearl farm: not only are its benefits coming directly from the jobs that come with the production of the pearls, but the farm is also helping towards the reproduction and growth of other wildlife fauna, since the aquaculture cages offer protection and security to many species -providing refuge from predators- until they can return to the sea to continue their natural processes. The farm offers a free environmental service as well.

Therefore, this company does not just favouring the recovery of some animal species -such as with sea cucumbers- but it is also benefiting the local fishing industry; from my perspective I believe that the farm protects many species of fish that are commercially caught for human consumption or fish that become food for these and that are later released back into the Bay. This seems to be a true sustainable industry, not only for Guaymas but for the entire Gulf of California: an industry that does not lead to the extermination of marine life and where it will become protected for all future generations.

To finalize this article: staying in a pearl farm is for nature lovers, because you are next to the sea in a place where can protect marine species, ensuring a future for all. And this is something that I have learned while working at the “Sea of Cortez Pearl” farm in Guaymas.

Sunset over Bacochibampo Bay's Pearl farm

And now we have come to the end of Jesus’ personal contribution to our Blog. I thank him for giving us his unique perspective. In future posts we will –once more- continue with the “El Mechudo” saga and more Mabe Pearl production, so keep visiting and do take the time to let me know your thoughts.

A Special Guest

Feb 24

After a short absence due to our many obligations at the pearl farm and also at the Gem Show in Tucson, Arizona, we continue to share our experiences in the pearl production. And for us, an important part of our aquaculture process is based on Environmental Sustainability: the production of pearls with full-respect for Bacochibampo Bay’s ecosystems.

Sunset over Bacochibampo

An It is because of this reason that -through the years- we have carried out an active process of re-stocking of several native species, whose populations have become endangered because of the fishing activities carried out by the locals. Among these species we can list the following: the “Black-lip pearl oyster”, the “Lion’s Paw Scallop”, the “Pen Shells” and the “Sea Cucumbers”.

However, our efforts have not been effectively transmitted to the general public because we basically have a one-man PR department (me!) and that I do spend most of my time working (as expected!) either in the production of pearl oysters and their pearls OR in the process of selling pearls and pearl jewelry; and the little time left from these occupations does not allow us to carry out an effective social communication effort although we do have our website up-&-running, as well as this blog (in two languages), a Facebook page and a Tweeter account.

But this year we have the fortune of having two young, bright and hardworking students helping us out at the farm. These students of the Guaymas Campus of ITSON (a local Public University) are about to graduate as Bachelor’s in Tourism. Thanks to an academic program of this important local institution, this young pair will help us in two very important areas: Sales and Research.

In the Sales area we have the invaluable assistance of Miss Veronica Machado and in the production area we have the strong support of Jesus Antonio Mendoza. Jesus Antonio -known by his nickname “El Tigre”- is helping in data collection and analyzing the important biological information for several small projects, including the “Sea Cucumbers Project” and the bio-cleaning of pearl-cages.

Jesus Mendoza & Jesus Valenzuela

I have asked Jesus “El Tigre” Mendoza to write a bit about his experiences of working in our pearl farm, as their training focuses mainly on tourism and he has a very different way of viewing our pearl farming activities: this is an entirely “alien concept”. And this is his first contribution to the Blogosphere. I hope you will be able to see things through the eyes of this young man:


From a very young age I have had great admiration and respect for nature, especially for all the natural resources that exist in the region where I live; I have always admired the contrasting combination found between the mountains, the desert and the sea. Despite of living in a place where the climate is extreme and where there is almost no rain, I’m always surprised how plants and animals have adapting to survive in these arid lands, and how our people have learned to survive.

Iguana on Cardon Cactus

I live in a very popular city located in northwestern Mexico: the famous port of Guaymas, located in the state of Sonora, which is situated on the shores of the Sea of Cortez (aka Gulf of California). This port’s economy is largely dependent on fishing, although in recent years has all fisheries have declined, due to over-exploitation, and thus this activity -in turn- came to be partially replaced by the maquiladora industry, but these do not provide the same quality of life –as fishing did- to our community.

It is until now that I have come to understand the great importance of the Sea of Cortez, not only for Guaymas but for the whole world: this sea has a unique biodiversity of marine species, all which are part of a large marine ecosystem on which we all depend for our survival. Species such as the vaquita marina, and the native species that are found at the pearl farm, such as the sea cucumbers, the many starfishes, the Cortez Angelfish, among others are just a part of a long list of flora and fauna that live in our waters.

A handful of sea cucumbers

The Gulf of California is also breeding place for beauty and rarity, the home of a Gem which is produced by a rarely-known pearl oyster species: the “Rainbow Lip Oyster”, an animal that produces pearls of intense and diverse colors: red, purple, blue, green and rainbow-like. Here at the farm they become high-end jewelry items, used primarily by women that visit this farm.

Bracelet by Alma Flores with Cortez Mabe

Soon –and thanks to the help of Veronica & Jesus- we will be finalizing details of our next “El Mechudo” video and we will have additional presentations from Jesus and Veronica.


Pearl Fisheries in Northwestern Mexico, Part 3: Who was “El Mechudo”?

Jan 6

And we are back, with what will be the New Year’s first installment of our Cortez Pearl Blog, and for this year we hope to become your source for all interesting pearl related legends & environmental stories, plus other things interest. We truly can be considered a “micro-cosmic-blog” within the Internet, since all the “big bloggers” concentrate on the “macro-cosmic” nature of the internet: computers, smartphones, music, file-sharing and all sorts of money making ventures…this blog is for the few that love and care for this beautiful and unique aquatic gem: Welcome Back!

On October 5 I published the entry about “The Pearl of the Virgin” which detailed the observance of the region’s pearl divers to the Virgin of Loreto, so that she extended her mantle of protection against the dangers of the sea and to help them procure a good yield of pearls. Now it is the turn to talk about the man in whom this legend is embodied, and in order to continue our analysis we must start with a couple of questions: Who was this “Mechudo” diver? and Where did the story/legend take place?

The Identity of “El Mechudo”

On the identity of this man, very little is really known, but some information can be extracted from the myth. One thing is sure: nobody knows his name or his true origin, but all the stories tell of a diver of exceptional ability, most likely he belonged to the Sonoran Yaqui Indian Nation, and we also know that he was possessed of a huge black mane of hair, and hence the nickname of “El Mechudo” or –losely translated- “The mop” or “Long Haired One”, “mechudo” meaning “long & shaggy hair”. It is said that his diver’s was so long and dense that he never used a hat, instead, he tied his hair in a way that it served him as shade and protection from the harsh sun-rays.

Another reason we believed him to have been a native-American man -or mestizo or half-breed- from Sonora is that some sources mention another nickname that this diver also received: “Guama”, an incorrect wording of the voice “Guaima”, which was the name of a band-clan of natives (believed to have been of the Seri or Kum Kaak nation) who lived in Guaymas, at the time of the arrival of the Spaniards in Sonora. Here we have a small promotional video about this fascinating culture of the Sea of Cortez…it is in Spanish, but the photography is truly nice:

Seri Indian New Year Festivity at Desemboque Seri, Gulf of California, Sonora.

Anyway, at that the time when the legend developed, the best pearl divers were the Yaqui of Sonora, so it is inferred that he was just one of the thousands who were employed in the extraction of pearl oysters, but he could have been from any other place. But, the “Guama” nickname is basically telling us that he was a “Guaymense”, a man from Guaymas.

The Place of Action

But legend has it that our long-haired diver had no luck in fishing for pearls on a fateful day, in an unknown year of the late nineteenth century (probably in 1897, since this event is recorded in a local newspaper from La Paz), the events probably occurring between the months of May to September, when pearl fishing was practiced in the Gulf of California. But even with this information we simply do not have the way to know the exact day on which this event occurred.

Another unknow fact is the precise spot where this tragic event took place, because some documents state it happened just north of the city of La Paz, in the Baja California peninsula, whereas others went as far as mentioning more precise coordinates:

  1. Southwest of San Jose Island and 12 km from the bay of “La Amortajada”,
  2. 40 miles north from the port of La Paz and 50 miles in front of the island of “San Francisquito”
  3. between 24° 42′ 30″ N and 110° 40′ W (according to the old newspaper from La Paz).

However, the site is that is presently called “Punta El Mechudo” (or “Long-haired Point”) is located north of the Bay of La Paz, at 24° 48′ 26.30″ N and 110° 39′ 37.90″ W, and here we have some images of site (courtesy of  Google Earth ):

A visual inspection of the area reveals that there is a small sandy beach, a good place for resting and for a fishermen’s camp; but viewed from above we hardly see the presence of “dark spots” in the water, these being an indirect indication that we are in the presence of rocky/coral reefs (or even in patches of algae), which would be suitable for pearl fishing.

Although, at a closer look we can also discover that at a relatively small distance from the point (see arrow), and at a higher depth, there are some kind of aggregates seen on top of the sandy bottom; these could be made of rocks and green coral heads (Porites sp.).  These Porites or green corals are very common in the Gulf of California, and they are known to have Black-lipped pearl oysters attached to them. At this point it seems this would be a good area for pearl fishing. In the next photo you can see how these corals are shaped, depending on the environment they grow in: they are sometimes found as encrusting types (when growing on top of large rocks) and they sometimes form “clumps” or “heads” when growing in calm, shallow and sandy areas. We have been in areas where they are abundant in their massive form, as in “Espiritu Santo” Island, while in Guaymas they are often seen encrusting on rocks.

Collage-Coral-Porites-ENG

At this moment we know a lot more about the man -the main character- in our story, and we also know a lot more about the location where the legend took place. In the next installment will continue “chipping away” the legend of the “Devil’s Pearl”.

We wish all of our readers a Happy & Successful New Year!!!

Pearl Ruckus 2011

Aug 30

Well, this isn’t really a “freshly-made” blog entry (I actually had it in the Spanish language version of this Blog since August 9th) but have not had the time to translate and proof it. I know: in these days of “instant translators” (such as Google Translate & Bing Translator) it should really be easy to just pop-in your text, get it out and be done with it…but some of us prefer to do things the “ole fashioned way”: using our brains and typing text. So, here is my review of this year’s “Pearl Ruckus”…

In the previous entry announcing he would travel to Los Angeles, California, to participate in the traditional "Pearl Ruckus" organized by the American Pearl Entreprenaeur Jeremy Shepherd, in order to gather toghether friends of what is probably the most important international pearl forum on the Internet: Pearl-Guide.com

Hollywood: Pearls we bring to you!

So, keeping to our appointed date (from July 22nd to the 24th) we all met in a beautiful mansion near the hill with the “Hollywood” sign … you will have to please forgive me the lack of photos but my camera "died" unexpectedly and the few images I was able of taking were using a borrowed camera (Thank You Sarah!). A total of 18 people came toghether thanks to the true hospitality and generosity of our hosts Jeremy & Hisano; we all had the opportunity to share & learn more about our fascinating gem (the pearl of course) and the changes that are happening within this industry.

Presentations

On Saturday 23rd we had 3 presentations and a special necklace-making session. Presentations were given by:

  • Josh Humbert, pearl farmer from Ahe, French Polynesia. Josh is a black-pearl producer that takes pride in his high quality pearls grown in an environmental friendly way. Josh explained his “biological cleaning system” (which he calls “the silent workforce”) based on the use of reef fish, which are used to clean his pearl oysters and avoid labor costs. This is a very interesting system that also allows his farm to avoid pollution increases the local fish populations.
  • Douglas McLaurin of Guaymas, Mexico, with a discussion of the positive Environmental aspects of the operation of a pearl farm in the Gulf of California. This activity seems to have had a very positive effect on the repopulation of the native pearl oyster species and that will be also be used to enhance the reproductive potential of other native species.
  • Jeremy Shepherd Blaire Beavers gave us a very interesting talk about the new Chinese "Metallic Colored Freswater Pearls" (which some have called "Edison Pearls") and that are now being offered through Pearl-Paradise.com.
  • Hisano Takei, a very talented designer, was responsible for a special “designers & jewelry workshop”, among which we could find Caitlin Williams (moderator of the Pearl-Guide.com’s forum) and designers Sarah Cannizzaro (from Kojima Co.), Patricia Saab, Sheri Jurnecka, Cathy Tran, Cinde Newberry, Wendy Weaver, and Marianne Carter…

All these activities are conducted in a relaxed atmosphere that made ​​you feel as if in a group of good old friends instead of a formal, business-like meeting… this was –of course- a matter of pleasure for us all: the pleasure of talking and sharing our passion for all pearls.

By the way, Sarah Cannizzaro also made her own Pearl-Ruckus blog entry, which you may enjoy here!

Pearls and More Pearls

We all had the opportunity to showcase our best pieces: pearls from all corners of the world … Josh had his "Kamoka" black pearls, including a huge 18 mm diameter cultured black pearl, Sarah Cannizaro designed a uniquely-original “pearl tiara” incorporating various types of pearls: kasumi pearls from Japan, Chinese freshwaters and even a Cortez Mabe Pearl (by the way: the tiara had a tremendous success among us), Douglas had a pair of very special pearl necklaces and a group specially “Cherry picked” Cortez Cultured Pearls from the 2011 harvest, Patty had a very long string of Cortez pearls (measuring some 50 cm in lenght!) and she also had a very nice necklace made with "Osmeña Pearls" (made ​​from Nautilus shell) and -of course- Jeremy had the opportunity to show us the reason why he is sometimes considered as the "King of Pearls": not only because he travels the world in search of some of the finest pearls, but because he had 6 kilos of the so-called "Edison pearls" (which I prefer to call “Metallic Pastels”).

A touching moment occured when Jeremy thanked Caitlin for her hard work at the Pearl forum and gave her a beautiful necklace made with natural “Basra” pearls from the Persian Gulf region, complete with certificate of authenticity.

Acknowledgements

To all who attended and made ​​this the very best "Pearl Ruckus" ever. And, very importantly, I want to Thank our hosts Jeremy Shepherd and Hisano Takei, who made ​​us feel –at least for a couple of days- as authentic "Pearl Kings and Queens”. Next year’s Pearl Ruckus is rumored as if it could take place in the Philippines, with Jacques & Christopher Branellec –of Jewelmer fame- acting as hosts … but this is still an unconfirmed rumor. Where will the Sea of Cortez Pearl go in the near future? We’ll just have to wait & see…

Finally, and totally out of the whole “Pearl Ruckus” theme… I took this picture of a sculpture made from scrap-metal parts (motorcycle parts, gears, automotive engine parts, etc.) made ​​in the image of the famous movie-monster "Predator" as it harpoons another terrifying movie-monster "Alien". We never knew the name of the owner of the Hollywood mansion were the gathering was hosted, but I assume –based on the presence of this "altar"- that somehow he might have been involved with this film series. Maybe.

 

Pearls & the Environment, Part 3

Jun 24

Obtaining the "Seeds" for your Farm

In order to “fatten” or grow your pearl oysters from a “juvenile” stage, what many refer to as “seed” or "spat" (oysters measuring between 2 and 8 mm), you either buy your litle oysters from specialized bivalve producing lab-facility, or you must establish a "wild spat collection" program. "Lab-raised spat" can be a very good option, but it may have a few disadvantages that are solvable. Let us first consider the advantages and then the disadvantages of Laboratory produced Juveniles:

  • You may have your spat at the desired schedule for your operation.
  • You can have all the spat you need for your farm.
  • Juveniles will have a very similar size (homogeneous) and growth rate.
  • The “Lab” may not produce spat for you due to a lack of demand (important if you use native or endemic species).
  • The quality of the spat may be very low (=high mortality and or lower growth).
  • The spat may have low genetic variability, since they come from a small group of “parents”. 
  • The advantages of obtaining "spat” from wild-collectors are many, but it also has its disadvantages:

    • The seed is inexpensive (almost free!)
    • The spat has undergone a "natural selection" process, where only the "stronger" (or “luckiest”) survived.
    • There is much genetic variability within the group, which makes them less likely to die from some environmental change or a disease.

    However, in regard to the disadvantages we have:

    • You fully depend on the environment to capture your baby-pearl oysters, and it is becoming increasingly more difficult to predict the exact time for spat-collection (due to environmental changes) and
    • It is almost impossible to predict the amount of seed that you are going to obtain and, in addition
    • Your Juveniles will have variable sizes (heterogeneous) and you simply
    • Do not know the group’s their "genetic make-up": you could end up with “oyster-duds”. 

    Therefore, it is necessary to carry out, for months or even years, proper tests to find the most suitable areas for spat collection and understand in detail the reproductive behavior of the pearl oysters within the area of cultivation. Still, it’s easy to mess-up and obtain fewer than the desired amount of spat, so a mixed strategy can be more profitable: use both laboratory and wild–caught spat.

    At our farm in Guaymas, we have been blessed with good seed collection areas that have allowed us to rely 100% on wild-caught spat since 1994, but we have experienced environmental disruptive phenomena (such as an "El Niño” or a "La Niña Year) that have caused us major problems in this area. However, seed production laboratories in the region do not sell pearl oyster spat… due to a lack of customers.

    So far we have only seen this strategy –the use of spat or “seed”- to start your pearl farm, but in a future post we’ll also discuss the other strategy: gathering large, wild-bred pearl oysters… but even before we compare all these strategies: how do you think these strategies can affect the environment? Surely the answer will surprise you (unless you already know something about this topic)…

     

    What can happen if I use "Lab-Raised Spat"?

    If this strategy is used properly, your farm can enjoy an uninterrupted supply of juvenile oysters, without ever having to depend on the environment’s natural supply. But, as with so many other things in which Humans get their hands-in, it can also lead to at a least pair of "unfourtunate" environmental problems. Among these we have "Genetic Pollution" and also the world-wide ocurrences of "massive pearl oyster mortalities". Here’s why:

    Setting: Japan, in the early 1960′s when the pearl aquaculture industry began a period of growth that seemed inexhaustible… thousands of pearl farms with their hundreds of rafts and thousands of culture cages, all inside the crowded bays of this island nation. With millions of "Akoya-gai" pearl oysters in culture there simply there were no more “wild-bred” pearl oysters available (most of these had been fished out to supply the pearl aquaculture industry) and there was not enough wild spat for the farmers. Since the Japanese people have been using research to advance their aquaculture technology, they generated enough knowledge to be able to rear laboratory-produced juveniles of all types of mollusks. Under this production system all that is needed is to procure a couple of oysters, an "Adam and Eve" if you will; from this couple you will be able to obtain millions of baby oysters (a female oyster can produce -depending on the species and other conditions- between 100,000 and 1 million eggs in a single "egg discharge") or “spat”.

    The problem that may be generated under this system is that all your oysters are descendants of this single pair of oysters (your “studs”), thus they are all siblings, and genetically speaking: these oysters are very similar (but not identical, remember that there is a genetic effect known as "Genetic Recombination" which makes it possible for an increase in genetic differences). This makes them more likely to react similarly to environmental change or disease: if one of them becomes sick… most likely all others will too. This problem can be avoided using a larger number of parent oysters or "studs" and we will gain a much greater genetic variability among our pearl oysters. Unfourtunately, once producers have used this productive system, they will imediately begin with the selection of "strains" or “Breeds” of genetically improved oyster stock, in which the parents are selected solely based on characteristics that are considered as desirable, such as:

    • A faster growth rate
    • Better Shell-Shape and/or
    • Better Shell color (=color of the pearl)

    And this is where a vicious cycle can begin, having no end in sight until its consequences become catastrophic, yet very few seem to care about this problem. Originally, pearl oysters are selected with the characteristics of faster growth rate and shell color, and from these you get a first generation (F1) of oysters that may be larger, grow better and produce pearls with a more similar color. Initially, this is something very good for the producer, since he’ll have the ability to introduce just the “right product” for the mass market: most pearls will be very similar and you can produce tens of thousands of identical pieces.

     

    However, if the the farmer re-runs the selection of broodstock (from the F1 or first generation) he will be able to further refine these characteristics: the pearl oysters will grow even faster and will have a better color selection. And so, the process is repeated for several generations… until his organisms (let us say, in their F10) become "genetically depressed" in a process known as inbreeding.

    I ask the question again: What does the Environment think of this? How can we affect the Environment? Well, let us gather some information from the Wikipedia on this topic:

     

    Inbreeding is the reproduction from the mating of two genetically related parents, which can increase the chances of offspring being affected by recessive or deleterious traits. This generally leads to a decreased fitness of a population, which is called inbreeding depression. Deleterious alleles causing inbreeding depression can subsequently be removed through culling, which is also known as genetic purging.

    Thus, growers should avoid the phenomenon of "genetic depression" through a less stringent selection or by introducing "new blood" -originating from wild oysters- so as to avoid this  negative phenomenon.

     

    Negative Environmental Impact from using Lab-raised Spat

    Although I would like to say that there is absolutely no negative impact, I must declare just the opposite. There is evidence that the use of lab-raised organisms can have an effect known as "genetic pollution" upon the wild-bred populations. This is something that is believed –by some- to have had affected the Japanese populations of Akoya-gai (Pinctada imbricata) oysters and could have helped cause the already known mass mortalities of pearl oysters. How so? Because of the production of sexually-infertile chromosome-altered oysters know as polyploids. These oysters are supposed to be infertile, thus the energy an oyster devotes to reproduction is instead spent on growth…a great thing for any pearl farmer, but as with all good ideas some are not that good. So, some of these unfertile polyploids began reproducing, their altereded gametes giving rise to some “Franken-Oysters” that settled in Japan’s bays, becoming part of the Akoya-gai’s “gene pool”.

  • But why do these things happen??? Because we cannot put a leash on Nature, because we just lack the Humility to accept that sometimes we just have a great tendency to wreck things up, and very specially when it comes to the environment.

    This aspect is similar to the “Wild Corn vs GMO Corn” controversy: pearl oysters are key species in many ecosystems and they also have cultural-value in many lands, why not just take care of the critters and raise decent cultured pearls and doing it in the best possible way? Well, there is always someone who goes the extra-mile to get an extra penny…seems this is what Life is all about after all.

     

    The Solution

    Our solution to this problem is simple: AVOID using inbred organisms, by always introducing "new blood" (wild-organisms from your locality to prevent any damage) into your selected “breed” and to always avoid using chromosomic-freaks. Mexico –among many others- is a Megadiverse country, and deserves the protection of its remaining natural resources: these belong not only to us, but to our children and all future generations, and as many have stated before: the Environment knows nothing about borders, languages or Human culture, so in essence it belongs to whole of Humanity and for all other Living beings with which we share this beautiful blue planet.

    Let us learn from the mistakes of others, and avoid falling into the habit of continuously using “damage control" techiques. In the next post I will discuss the "collection of wild spat". Until next time!

     

    Pearl Culture and the Environment, Part 2

    Jun 7

    Continuing with the subject of “pearl culture and the environment”, we will now talk about some of the reasons why a farmer will not want to culture his pearls for a longer period of time, and also of how a pearl farm can affect the environment: but remembering that this can be in either a positive or negative way.

    And, before we continue I want to tell you that this topic will cover a good number of entries in our “Cortez Pearl Blog”. In fact, this whole subject could be used to write a chapter of a book, but this is not the goal; what I’m trying to accomplish is to create some awareness and that you will come to understand that pearl cultivation is a very complex industry because it interacts constantly with natural and human factors (economic and ethical). I am going to approach several subjects, and will do so in such a way that I hope you will not feel that this is like going to school again.
    So, off we go…

    Behind every great Pearl there is a Great Pearl Oyster…


    Many may assume that the main reason for not extending the length of the pearl cultivation period is to be able to produce more pearls in less time; but this would not be the only reason, so we firstly have understand that behind Pearl cultivation there is yet another culturing period: that of the pearl oyster itself.
    Cortez Pearl displaying the "fish eye" effect
    In order to produce a cultured pearl we first require an oyster to grow the pearl in. But, pearl oysters do not simply appear from thin air (spontaneous generation) at the farm: we have to get them; and this can be done in two ways:
    1. By “growing” or raising young pearl oysters (usually known as “spats”)
    2. By means of the Fishing of Wild Fully-Grown Pearl Oysters (adults)
    Which one of these methods will you use? Well this depends -a lot- on the country or region where you plan to start your pearl farm, the species you want to grow and your motivations. How can this be so? Let us dissect this subject, piece by piece…

    The Pearl Cultivation Period

    So, what makes a farmer decide to cultivate pearls for longer or shorter periods of time? As it has been heard many times “Time is Money” and it sure is: the time spent by the farmer to grow his pearls represents a constant risk. The risks are real and can put an end to a farming company. This is a short list of the real risks:
    1. Water pollution: oil spills, water runoffs with fertilizers/pesticides, etc.
    2. Environmental disruption: that can be as dramatic as a tropical storm (hurricane) or a tsunami, or even something as subtle changes in ocean currents or extensive climate changes (such as those caused by a El Niño” or “La Niña” year), which can range from the partial destruction of a farm (see our series of posts on “Pearls and hurricanes”) to massive pearl oyster mortalities, or that prevents their development, the growth of pearls or their lack of beauty.
    3. Accidents: at times – and we do know of this – a commercial fishing boat may simply decide to fish on your farm, and become entangled with your aquaculture gear; this –of course- only happens if the ship’s Captain decides that he does not want to respect a no-fishing zone and does so at night, when there is no visibility. This has happened to us.
    Due to the above risks, a farmer can easily lose some of his pearl-oyster stock, pearl culturing equipment and boats. In the year 2003 we lost 70% of our oysters with Hurricane “Marty”, and in Japan a producer of “Kasumiga” pearls lost half of his farm to the tsunami of 2011. In some cases, the loss of the farm is the least of his problems: in 1996 a Cook Islands pearl farmer died because he was swept away by the waves that struck the atoll where he had his farm. His body was never recovered.

    The “Right Time”: No more & No less

    Dr. Doolittle wannabes abstain!Thus, if a farmer has to produce pearls for 4 years – as we do – the risks simply accumulate, day by day. On the other hand, if the producer is dedicated to extract wild oysters and subsequently produces pearls with a short cultivation period (4-10 months) then his risks are minimal. The issue here is to find the correct thing to do: have the right time to grow good quality pearls and have a TOLERABLE risk. But, I have yet to mention to another “party” or 3rd-person involved in the industry: the environment.
    From our point of view, the environment must have voice and vote in our farming decisions; but, how do you listen to the voice of an ecosystem? Do we really have to grow long-hair, dress in a “hippie” style and ingest some hallucinogenic plants? Well, this was never really part of our plan: so, what you have to do is monitor the environment.
    But there are many things -or parameters- you can monitor in your local environment… how can you choose the appropriate things to monitor? It is definitely not simple to choose, but you don’t really have to hire a consulting group to help you: keep it simple and clean. You can simply take into account the natural environment at the time that you “receive it” (before you begin your farming activities); you simply “audit” your “biological inventory” (noticing the easily noticeable species, avoid microscopic life-forms) and with the passage of time you will notice changes:
    1. Do some species disappear or some (new ones) appear?
    2. Are there are any changes in the ocean’s floor (smell, color, grain size)?
    3. Are there any physical and chemical changes (salinity, pH, dissolved oxygen) in seawater?
    4. Are your oysters healthy?
    The simplest thing to do is to just monitor points # 1 and 4, but we will further discuss some of the other key-points within the same series, so if this interests you: visit this Blog at least once a month. In addition, there will be some things that you cannot change nor influence and that you cannot be held responsible for.
    A significant decision in the pearl culturing period is set by the way in which a farmer gathers his pearl oysters for cultivation. There are basically two ways (some would say three) in which you can obtain pearl oysters for your farm:
    • By using “spat” or pearl oyster juveniles: this can be done by either collecting juveniles from the environment or through the purchase of “Lab raised spat”, produced in highly specialized production centers;
    • Fishing for “Wild Grown (adult) oysters”: these animals are usually obtained by fishermen that will sell the wild-raised pearl oyster to a farmer (at a price that ranges from cents to some $15 US dollars per oyster, pricing depending on multiple conditions) or by pearl-divers that are employed by the farmer. The preferred oyster sizes range between 10 and 16 cm (4-6 inches) in diameter, which will allow you to grow larger pearls.

    In the next installment, I will continue talking of the differences in the use of these strategies and their possible effects on the environment, although I might come up with a small report on this year’s pearl harvest (it looks really good). If you have doubts…questions…just ask and I will try to answer them. Until next time…

    Pearl Culture & the Environment- Part 1

    May 9

    Just a couple of days ago a friend of mine –he is a retired Canadian farmer- and I were discussing the way the North American “Meat Industry” (beef, poultry, pork, etc.) had become misguided by the constant search of higher volumes of production (which, somehow, equal MONEY), but this was being done at the expense of both the animals and the consumers (all of us). Kurt began by telling me about his experience when dealing with local Animal Sanitation officers, about the indiscriminate use of antibiotics on cattle and the plain lack of “common sense” on the part of those involved in the industry. He told me: “I did not inject my animals with antibiotics, but instead I offered them land on which to forage, clean straw-bedding and care. My animals never developed the infections I was told they would suffer and they fattened better than those under the strain of antibiotics”. He cared for his animals and treated them with respect. Some in the industry seem to have noticed the same thing and have reverted to “the Old way”.

    Just a couple of days later we were reading an “old” article written by Shigeru Akamatsu, a person with much influence in the Pearl Industry (being Counselor of the “Japan Pearl Promotion Society”, and he started as a pearl culture researcher under Kokichi Mikimoto’s leadership) and I felt this article tied in perfectly with the talk I had with Kurt, and thus this entry got its start.

    The Reasons Behind the Changes

    The article “Pearl Culture and the Biological Environment” (published in “Ship & Ocean Newsletter”#8G March 5, 2004) which can be downloaded in PDF format is quite interesting because it finally approaches the decline of the Japanese Pearling Industry in a way that is finally understood: the industry as a whole has to admit its guilt. No longer is guilt being laid upon the “wrath of Nature” in the way of red tides or mysterious diseases. And although Mr. Akamatsu does not mention it this way, I could read the word “greed” on certain paragraphs…but he never mentions this sin, rather handling it in a more political way by using a term like “in the pursuit of economic efficiency”.

    Mr. Akamatsu states in this article’s first paragraph:

    Japan dominated the world’s cultured pearl industry for many years, but in recent times that state of affairs is changing rapidly. Though the rapid globalization of the pearl industry can be considered as one of the reasons, the primary cause is the deterioration of pearl farms caused by the occurrence of harmful red tides and the massive mortality of Akoya pearl oysters due to an infectious disease. Such phenomena relate not only to pearl culture, but also to BSE, carp herpes, avian influenza, etc., and may be the price paid for not treating animals as living creatures, in the pursuit of economic efficiency, as well as for incessantly changing the natural environment for the expansion of production.”

    Akoya Pearl Farm in Japan

    When pearl culture began in the early 20th Century, the overall idea was to produce a natural pearl substitute but that would keep the attributes of the pearl: beauty and durability. Initially, pearl culturing periods were long (2-5 years) but many in the industry noticed that pearls with shorter culture periods still looked nice (1-2 years) but then they saw that most people could not tell the difference between “instant pearls” (4-8 months) and those with a longer culture periods, thus shorter pearl-growth periods became more common…and profits increased. Why would profits increase? This is something that every pearl farmer understands, but let me explain it shortly: each pearl oyster in your farm costs you money, every day.

    In order to cope with mounting costs (labor, equipment & fuel) pearl farmers can use many strategies, such as:

    1. Increase stocking density: you grow more oysters in the space you already have.
    2. Decrease your Work-force: substituting manpower with machinery and equipment.
    3. Decrease your Pearl Culture Period: you grow your pearls in less time.

    Let us talk about the implications of each of these strategies.

     

    Stocking Density

    Growing more oysters in the same space you had may sound efficient: If you can fit 10 books in a box that once only held 7 books –thanks to a more clever way of arranging your books- then you have done this in a more efficient manner. But it is not necessarily the same with living organisms: animals –even plants- will thrive under adequate conditions, but overstocking/over-crowding will yield unhappy critters…and this brings about stress.

    Imagine you live in a 10 x 10 meter room (sounds like a prison-cell, doesn’t it?) and all of your basic needs are fulfilled in this space that has a toilet, lavatory, book-case, table and chairs, bed and TV set. Now imagine you have a new guest, it may become uncomfortable but livable, but now: crowd the cell with 8 more “guests” for a total of 10 people…1 per square meter. Life becomes unbearable for all: can’t eat, can’t use the toilet nor watch TV nor reach for a book, then there’s the lack of food, stress, the smell and finally disease. Not a nice option…would it be nice for an oyster? Our mollusks don’t have brains nor conscience so they will not suffer any psychological damage, but their bodies will indeed react to overcrowding by displaying less growth (become stunted), will be less healthy and will become sick (ultimately they will die) and their pearls will lack beauty.

    We can actually tell when an animal did not enjoy a healthy life when we see its shell and pearl: unhealthy oysters will have dull shells, without intense colors (the trade-mark of our “Rainbow-Lipped Oysters”) and their pearls will have dull luster and light colors. But overcrowding oysters is not the only factor that will affect their health: the environment (pollution, climate change, hurricanes) and disease (caused by parasites), but these are not under the control of a farmer. It is up to the farmer to have healthier pearl oysters by means of adequate stocking densities.

    Infections are a major headache for producers: infected oysters may quickly infect their sisters & brothers under crowded conditions, and since overcrowding makes oysters weak –due to a combination of lack of food and oxygen- and parasites can easily “jump” from an oyster to many others if the distance is short.

    In our case we hold our “Rainbow Lipped Oysters” under more than adequate conditions inside Bacochibampo Bay: we use less than 1% of the bay’s entire area and there are no other mollusk farms in the vicinity (the closest one is an edible oyster farm in Kino Bay, some 180 Km/112 miles away). We are making sure that our fledgling venture will not follow the same course as others, but let us see what has happened in other pearl producing countries:

    The Cook Islands: here we’ll cite information about pearl-farming mortalities caused by overstocking (you can read the whole article by downloading the PDF file from the link):

    “In Manihiki Lagoon, one potential stressor which may have been related to the onset of mortalities was the high stocking density. Prior to the disease outbreak the number of oysters cultured in Manihiki Lagoon was reportedly at an all-time high. In conclusion, our data suggest that an unprecedented disease outbreak in P. margaritifera [the Black-Lipped Pearl Oyster] in Manihiki lagoon in November 2000 was associated with vibriosis caused by V. harveyi [a species of Vibrio virus] and other opportunistic vibrios.”

    Japan: When we began our experimental pearl farm in 1994 we heard about a “mysterious disease” that was killing the Akoya Pearl Oyster and that nothing could be done about this “viral outbreak”. The blame was laid entirely upon an “unknown virus” and you can read some of the thoughts of the time (taken from “NOVA: the Perfect Pearl”) on the following paragraph:

    “Experts attribute the initial oyster deaths in 1994 to “red tide,” a bloom of microscopic, toxin-producing animals in the ocean that proved deadly to the oysters. Even after several years of scientific investigation, the specific cause of the disease remains a mystery. The illness first makes itself known when the abductor muscle, which holds the two parts of the oyster shell together, turns a reddish-brown. Ultimately, eight out of ten affected oysters die from the affliction, which so far has only affected akoya oysters. Others feel the oyster farmers themselves might be to blame. “The Japanese have always tended to place too many oysters too close together” wrote Andy Müller in the December 1996/January 1997 issue of Pearl World.

     

    So, in both instances we’ve seen that over-crowding –both your cages and your bays- leads to severe problems in pearl production. Why do it at all? Many reasons there are, but they are one and the same: the COST of floats, equipment (pearl culture cages), more workers (salaries), of paying for more “sea-rights”, the costs of moving away from densely packed areas into remote areas (devoid of many necessary services), but in the end they are all translated into the cost of producing pearls. If pearls kept a high value you would not need to grow billions of pearls, thus by producing more pearls the industry shot itself in the foot and a vicious cycle began to turn and churn.

     

    Labor Costs

    Adrian Amarillas holding a pocket net with Black-Lips

    Many people believe this is a major solution to a company’s problems, but we believe this is really a big mistake. Companies are nothing if they don’t have people: they are made of people and one of the purposes of any company should be the production of well-paid jobs. Making money is not bad and should be a goal of every company, but it should not be the sole goal: there is a particular pride to producing pearls and the people that help you achieve this… become your trusted allies.

    Farm-wise: without workers a pearl farm would just die. Pearl farming is a work intensive operation, involving divers, aquaculture technicians, farm-workers, mechanics, surveillance guards and many other people. Loose one link and the rest will follow. And pearl farmers usually work under very specific time constraints such as: the seeding season, the spat collecting season, harvest season, etc. This means that if you DO NOT finish a certain activity ON TIME you WILL NOT BE ABLE TO FINISH IT AT ALL and will have to move to the next one, ultimately this means it is highly unproductive and foolish.

    And something I really want to stress here is that pearl farming is very artisanal in Mexico: very little machinery is employed. And we want to keep it that way for several reasons which many may approve and others will disprove, and it may be one of the reasons why we ended up with the Fair Trade Gems seal of approval (the only pearl –so far- in this list is the “Cortez Pearl”): we have very few jobs in Mexico. Our economy just doesn’t work because it is fueled by our exports (mainly raw-goods such as oil, agriculture goods and metals) and our cheap labor-force (which is also “exported” to other countries) in manufacturing for offshore companies. If we purchased machinery that would allow us to avoid hiring additional workers we would be a part of the problem, not a solution…so, even if this costs us more and makes us less efficient we will continue on this path.

    In a future post we’ll explain a little more about our labor strategies.

     

    Pearl Culture Period

    The longer the pearl resides inside its “mother” or “host” oyster, the bigger it becomes and the more “pearl” (nacre) it will have…but this also means you must continue to grow your pearl oysters for longer time periods. Many sources state that the pearl culturing period in Japan took between 2 to 4 years to complete, the Akoya pearl ending up with a very good coating of 0.95 mm (Ward, 1995). This good nacre coating made it possible for the pearl to look beautiful, lustrous and have the endurance –basically, to pass the test of time- that all gems should have.

     

    Cortez Pearls in Half

    But many in the pearl-industry noticed that most consumers would not be able to tell the difference between a thickly-coated pearl and one with a thin-nacre coating. Thus, a bad practice was initiated in the industry and pearl culturing periods fell to –in some cases- down to less than 6 months (with a coating of less than 0.2 mm, once again Ward, 1995 is the source). This saved farmers a lot of money in wages & cages…but, was it really worth it?

    This issue was addressed quite some time ago by many in the pearl industry, but a particularly strong voice was that of the late Australian Pearl Farmer & Consultant C. Denis George, who in 1971 stated:

    “The Japanese technicians are insisting that this thin cultivation [of the pearl] does not make any difference in the appearance of the pearl, but in my opinion this is beside the point and does make a lot of difference in the principles involved and their material value in dollars paid by the customer in the belief she is acquiring a pearl of value… This resulted in many losing their trust in pearls, other withdrawing from the industry or going bankrupt; and many scores of thousands of women all over the world…became bitterly disappointed when their treasure faded.” (Excerpt from “The Black Pearls: History and Development”. 1971. Lapidary Journal).

    Akoya Pearl Quality Compared

    Comparing Nacre Thickness of Akoya Pearls

     

    From a farmer’s perspective, there are many situations that will make you consider against having longer pearl culture periods, such as:

    1. Global Warming & Hurricanes
    2. Pollution
    3. Disease
    4. Age of your Pearl Oysters

    But regardless of these situations, a pearl farmer should have set his farm’s goal for nacre thickness and stick to it as much as possible. For instance, our pearl culturing period ranges from 18 to 24 months (after the moment the pearl oyster is operated), and this allows us to harvest pearls with an excellent nacre coating of 1.5 mm around the nucleus, although many pearls will grow over 2.0 mm of nacre, some will grow less than the 0.8 mm minimum acceptable standard. You really have to stick to this minimum culture period because you simply cannot accept anything below the 0.8 mm thickness mark…if the pearl falls below this number it has got to go down the drain (pearly gehenna: the pearls must be cast to the deep waters of the Sea of Cortez, where bacteria will recycle their materials).

    Compare this to the Tahitian Pearl Ministry’s quality check for Tahitian black pearls in the year 2001:

    “…the minimum nacre thickness requirement for all exported Tahitian pearls at 0.6 mm went into effect on Sept.1. The assembly voted to bump that minimum up to 0.8 mm beginning July 2002.” (“Tahitian Government to Improve Pearl Exports” by Victoria Gomelsky in Gemstone News. National Jeweler. September 2001 page 28).

    This actually means that many in the pearl industry are –or were- producing pearls with a nacre thickness that is simply not adequate, and this affects those producers that are interested in keeping a high quality standard in their pearls, because –in the end- all pearls are considered as equals by many customers. Not so.

     

    Final Thoughts

    • Pearl Oysters are an important species in their local ecosystems, but too much of a good thing can ruin things for all so it is really important that you do not disrupt your environment’s carrying capacity by overwhelming it with billions of pearl oysters: healthy oysters will produce exceptional pearls.
    • Keep your Local Jobs: If we were all able of making our companies thrive, then let us keep our local jobs truly local, by offering good wages and good working conditions; we might lose money by NOT having workers in other countries do the work we could on our own, but we would fuel OUR economy. If we all did our part our economy would grow and we would not have people leaving this Country for the one up north.
    • Keep your Pearl Quality High: Good pearls are the first to go! Pearl buyers are always looking for the pearl of a lifetime…the pearl that will make them gasp in awe! Low quality pearls are good for trinkets or for feeding your local bacteria. Would like to finish this subject with a mention from the Bible:

    Matthew 13:45-46

    45 “Again, the kingdom of heaven is like a merchant looking for fine pearls. 46 When he found one of great value, he went away and sold everything he had and bought it.”

    So, what do you think about this subject? Should producers consider the Environment as their Ally or as a “bloody nuisance”? What should you -as a pearl buyer- consider as a good trade-off? Please let me know your thoughts…in the comments area.

    On our next post we’ll detail some of the reasons for not growing pearls for longer periods of time and some of the ways how pearl farming can affect the environment…both in a positive and a negative manner.

     

     

     

    The Mysterious “CalaMabe Pearl”

    Apr 12

    Every day is an amazing opportunity for gazing into Creation and the perfection of Nature. When I look at sea-shells and their amazing patterns and their beautiful symmetry, or when I watch some little scallops swimming with grace or when you happen to see dozens of brown pelicans plunging into the sea all at the same time…well, it is understandable. But, sometimes you’ll end up having the same opportunity when examining the wares of a local street vendor in downtown Guaymas: it happened to me just the other day.

    I sometimes walk the streets in downtown Guaymas looking for locally made sea-shell hand-crafts and this time I ended at Mr. Sansón Galindo’s curios shop; he has a nice selection of sea-shells and Mexican coins for sale, but something really caught my eye this time: just over a dozen or so hemispheres that displayed an intense golden color. I had to ask him about these because they looked very much like low-quality Mabe pearls from the “Penguin Winged Oyster” (Pteria penguin), a close relative of our beautiful “Rainbow Lipped Oyster” (P. sterna)… I actually began thinking this vendor was trying to pass off these “junk quality” Mabe for our “Cortez Mabe” but no, he was not. Instead he offered these as “Squid Pearls”.

    Mr. Galindo and his "Squid Pearls". On the top-right corner the "raw" pearls. Below, the fully useable ones.

    So, he told me about how these are collected by some fishermen and then left to dry up, are then “peeled” and finally sold. He told me these were “true Gems” and held up a key-chain of his that had two of these “pearls” crudely affixed with resin. I had to get one for analysis and for just $50 pesos (roughly $5 USD) the price was not a fortune to spend for a “true gem”. So I purchased a few of these for closer examination.

    Provenance: the Origin of these “Pearls”

    Well, if these belong to a squid, the most obvious source had to be a “Diablo Squid” as some fishermen call them, but more commonly known as the “Humboldt Squid” or Dosidicus gigas. We are quite familiar with these delicious critters because in Guaymas there is an important fishery of these mollusks, and we –even without looking for them- have been able to catch in the vicinity of our pearl farm…without much effort: you just have to be very careful they don’t tear your flesh to shreds with their powerful beak and they terrible spine covered suckers!

    Bodily Origin

    Well…these squid don’t have shells and they don’t even secrete any kind of pearl-like substance. The hardest parts of their bodies being the “beak” (looks like a parrot-beak) in the animal’s mouth and the “pen”, a translucent feather-like structure that offers the squid’s mantle a solid attachment point for some muscles (click on the link if you want to learn more about the Squid’s Anatomy). And every time we ate one of these we never found anything resembling a “pearl”. So, where could these “squid half-pearls” have come from???

    Not a contact lens...but close enough: a peel from the squid's lens.

    When I interrogated the street vendor he told me that these “pearls” were found inside the calamari’s eye. He showed me a couple of “untreated pearls” and these had some dried-up crust around them, once this was removed you could see the golden-colored “pearl”. An eye for an eye…aye, Captain! I guess it never occurred to me to cut open a squid’s eye, nor gulp it down with some lemon juice and chili sauce…that’s why I never found this item before!!! Eyes are usually discarded…aren’t they?

    So, we now know where they come from…but what are they? Searching in my old textbooks I found that the only possible thing would be the “lenses” (described in some places as: …”a hard, marble-like ball object”). And it is such an amazing object…done perfectly. Its shape is a hemisphere, like that of a high-rise Mabe pearl (12 mm) and with a perfectly round diameter (14.6 mm). The dome of this lens displays a bit of iridescence, although it has cracked due to dehydration. A layer or protein flaked off the pearl and seems to have a thickness similar to that of a contact-lens. Its weight…being made of protein it feels very light (1.3 grams, a similar sized Mabe will weigh 2.2 grams). I just had to give it a name…”lens” is just too cold for this amazing object, so I gave it a new name: “CalaMabe” (joining the word “Calamari” and “Mabe”).

    Beauty is in the Eye of the Beholder

    A "Calamabe" and a true "Cortez Mabe"

    But the beautiful part of it is not really its “dome”, but the flat, bottom portion of the “CalaMabe” this is the part that jewelers would use to attach the Mabe to a piece of jewelry, but this is the part I would NOT cover, this would be the part I would display. Why? Because it is here where you can see the “Eye”. What I call the “Eye” is a weird or perplexing thing because there is a unique optical effect there: you slowly move the “calamabe” to and fro and you will see as if there is a “floating-halo-like-eye” (think of the “Eye of Sauron” in the “Lord of the Rings trilogy”, excluding the Black Tower, the flames and the million screaming orcs) that follows you…truly mesmerizing. It might just…become…my preciousss…

    The flat side af a "Calamabe" and a traditional Mabe

    I was unable to capture this effect with my video camera, not having a good close-up focus, but if you still want to review the video it is here for you (the video’s audio is in Spanish at present, but will add subtitles in English in a couple of months, just after harvest):

    Eye of Sauron? No! A Calamabe Pearl!