Monday, August 20, 2012
The time has come to end this blog. It's been a great run and I have thoroughly enjoyed sharing some of my discoveries about horseshoe crabs with all of you. I appreciate your comments and your enthusiasm for this enigmatic creature - one that continues to amaze and continues to survive.
But, other literary ventures beckon and other discoveries await. Thus, this will be the final posting. Thank you so much for your time and your encouragement. I hope you will obtain a copy of the book on which this blog has been based - "Horseshoe Crab: Biography of a Survivor" (Ruka Press, 2012) - and that you will continue to share its story with friends and colleagues.
Wednesday, July 25, 2012
Unquestionably, the facilities I toured were clean and pristine, the workers were efficient and dedicated, and the hum of activity was constant and purposeful. The facility was part of a larger enterprise that was working to produce a product that, perhaps one day, might help me – or help you - survive a medical procedure. But it wasn’t the facility that impressed me, it was the tiny creatures aligned in long rows with people sticking sharp needles into their backsides that impressed me most.
The horseshoe crabs didn’t ask to be here. Once upon a time they were peacefully crawling over the sand and silt scattered across the bottom of the
There they were sorted into categories and placed into other bins. They were wheeled into a long chilly room where a pair of human hands would lift them up, bend their bodies in two, and wedge them between two wooden boards. Their backsides would be swabbed with disinfectant and then, joy upon joy, a very sharp object would piece their body and puncture their heart. They would sit there (sit there?) for five to ten minutes while some of their body’s vital fluids drained into a large glass bottle placed beneath them.
Then they were pulled from the racks, re-deposited back into some portable tubs and unceremoniously trucked into a back room. They waited there and then were loaded into trucks, transported back to the ocean, and gently placed back into the arms of the
It was easy for me to determine all the benefits you and me and a couple of billion humans have obtained from horseshoe crabs. But there was still a persistent question tickling the back of my brain – a question I couldn’t quite answer as I swung out of
It's been quite a ride! I have thoroughly enjoyed sharing my views, discoveries and adventures with horseshoe crabs over the course of the past year-and-a-half. But, all good things must eventually come to an end. And, so it is with this blog. Other writing ventures beckon and other literary assignments call...and I must heed their demands. Consequently, this will be my last blog posting. I sincerely hope you have enjoyed the ride and that you will ealso njoy the fruits of this journey in my book - Horseshoe Crab: Biography of a Survivor (Ruka Press, 2012). The book has garnered many rave reviews from several well-respected people and I'm delighted with its message. I hope you'll consider getting a copy.
Thanks for your support and your enthusiasm for, arguably, one of the most fascinating creatures on this planet!
Wednesday, July 11, 2012
We pass back into the bleeding area, and as we observe the blood collection process again, this time from the back side of the bleeding room, I ask Denise about the ratio of male to female crabs during the bleeding process. “The number of males and females is reported to the Maryland Department of Natural Resources, with the end product being roughly a 50/50 ratio of males to females for the entire season.” While each individual bleeding session may have more males or more females, the 50/50 ratio is the goal by the end of the season. The Maryland Department of Natural Resources monitors the entire process: the number of trawls, how long each trawl can be, how many crabs are caught by each fisherman, how many males to females he brings in, and how many are rejected for size. Every aspect of the operation is controlled and monitored.
Tuesday, June 19, 2012
After some “ground rules” about what I could and could not do while inside the facility, Denise led me on tour. After grabbing my (non-sterile) clipboard and my (equally non-sterile) pen and we begin our journey. I soon discovered that carrying on a conversation through the gauze of our face masks and the constant hum of machines (that I am not permitted to describe) would be a constant challenge (Hmmm, I thought to myself. How would Bond have handled this? What about Damon?)
As we enter the bleeding room I can see a long row of horseshoe crabs – each wedged between two white planks at about eye level (human eye level, that is, not horseshoe crab eye level). There are approximately 20-30 crabs being bled into 500ml liter sterile bottles. Each of the crabs is sprayed with a disinfectant prior to being bled. After spraying, a worker comes by and uses a cotton swab to further disinfect each crab’s arthrodial membrane. At all times sterile conditions are maintained throughout the bleeding process…more to protect the product rather than the crab, I am told.
Each crab is then stuck with a very sharp needle attached plastic syringe-type devise. The needle pierces the hinge between its prosoma and opisithosoma and is inserted into the crab about 1/4 inch. Shortly after the needle punctures the cardiac sinus of each crab the (blue) blood begins draining into a bottle placed beneath each crab. Workers must be careful to pierce the arthrodial membrane and then the cardiac sinus. If the gut is punctured, gut material would contaminate the entire bottle with bacteria. However, these are pros and their practiced hands, after hundreds or thousands of heart punctures seldom make a mistake.
The blood, which is a light-blue, almost turquoise in color, descends into each of the bottles - some are barely dripping while others are flowing at a fairly constant rate. Once it gets down to a slow drip the needle is pulled out. A few of the crabs decide not to cooperate – they aren’t bleeding at all.« After each crab has been bled I watch as one of the workers works her way down the line, and using a portable electric drill (good old Black and Decker), she punctures the left hand flange on the rear of each crab’s prosoma. Since it is 2011 the hole is drilled into the left side of the carapace; next year (2012) is an even year, so a hole will be drilled into the right side of each bled crab. During each harvesting season, fishermen look for these holes; if a hole is present they can tell if a crab has been bled in the current year or in a previous year.
Each of the 500 ml bottles used to collect the turquoise-blue blood also has an anticoagulant to prevent any clotting from taking place. Immediately after a cadre of crabs has been bled, the syringes are removed. The crabs are then returned to oversized bins and wheeled out of the operating room (excuse me, bleeding room). As the recently bled crabs are being wheeled away in readiness for the next batch, a few workers are cleaning the stainless steel tables with disinfectant. A new set of crabs is rolled in, wedged between the boards, and the operation repeats itself.
I watch closely as Sheila (I’m allowed to use what is apparently her real name, although (since I’m up on current spy protocol) that may be a sneaky diversionary tactic to confuse me so that I don’t recognize that she is, in reality, a company informant [named Brunhilda] watching my every move) goes through the entire process. Sheila has been bleeding crabs here for 13 years and has a good eye for the process. She is business-like, methodical, and knows her craft well. I watch her go through the entire procedure with a sense of efficiency as well as a respect for the crabs she is handling. To her, these are not inanimate objects, but rather life-saving organisms temporarily entrusted to her care. She treats them efficiency and she treats them well.
After departing the bleeding room we take off our coats, masks, booties, and other protective gear and re-dress in similar sartorial splendor prior to entering another sterile room. We have now entered the Processing Room. The bottles from the bleeding room have been passed through an air lock and into this section of the facility where they are put into a centrifuge. The centrifuge is designed to separate the cells from the serum or hemolymph. After centrifuging, the cells will be left on the bottom of each container and the hemolymph, or blue solution, will be poured off. One of the workers will then re-suspend the cells and wash them in liquid media. After the washing process they’ll go into the centrifuge again. Once they are centrifuged, the cells can then be lysed (the breaking down of a cell).
Sunday, June 3, 2012
However, before I made the trip I was advised that I could not take any photographs, nor could I tape record any of the conversation I was to have with the plant manager. I could take handwritten notes, but I could not take away any visual or verbal information. This was top secret stuff – proprietary information – and since James Bond wasn’t around I now imagined myself in a Matt Damon movie. I was about to enter a secret facility, with very secret information, and clusters of very secret people who talked in low whispers, wore starched while lab coats, carried clipboards and walkie-talkies, and ate cellophane-wrapped sandwiches in sterile lunchrooms.
On top of all the secrecy I was required to wear the always fashionable blue hair net, starched white lab coat, baby blue “booties” over my shoes, sterile face mask, and special goggles over my glasses. I wanted to try my best Matt Damon impersonation, but the thick pad of gauze over my mouth muffled my usually witty repartee making me sound more like Big Bird or Cookie Monster on