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Florida's Endangered Sea Turtles

Jocelyn Hubbell, Curtis Memorial Library’s Cornerstones of Science Coordinator, was selected as a research fellow to study Florida’s Endangered Sea Turtles (March 16 - 24, 2005) at the Pineland Research Station of Mote Marine Laboratory. (Scroll down this page to find her log from the field.) During this nine-day Earthwatch Institute expedition Jocelyn helped conduct field surveys to study the in-water ecology of loggerhead, green, and Kemp’s ridley turtles within Charlotte Harbor National Estuary under the direction of principal investigators Dr. Tony Tucker, Mote Marine Laboratory and Dr. Jeff Schmid, Conservancy of Southwest Florida. The team added to the body of research about the life-long habitat needs of the sea turtles. Jocelyn’s fellowship was made possible through a generous grant given by Earthwatch and the Davis Family Foundation.

Meet the Scientists in charge of the turtle research.

Sea Turtle Resources (books, videos, and websites) are listed at the bottom of this page.

Jocelyn's Turtle Log
NOTE: Place your curser on each photo to get the photo caption.
© Earthwatch / Jocelyn Hubbell

Day 1 – March 16, 2005
Eighty degree hot, humid air, and the palm trees in the airport courtyard confirmed that I had left the northern temperate region of Maine far behind. I quickly changed out my sweater for a sleeveless shirt then went to meet Tony Tucker, principal biologist, and the rest of the Endangered Sea Turtle Research Team at our rendezvous. Introductions were made all around. We are a diverse crew, ranging in age from 19 to 78 years and include an artist, a college student, a retired ophthalmologist assistant, two educators, and two scientists. We come from Washington, Tennessee, Rhode Island, Georgia, Florida, Maryland, and Maine.

We all piled into the Mote Marine Laboratory van and were given a tour and introduction to Pine Island ecology by Dr. Tucker. The hurricane damage is obvious and extensive. We visited the site of the ocean-side Pine Island Turtle Lab, research vessel launch, and team accommodations, now sand and rubble from one of last summer’s hurricane Charlie, before settling in at the temporary accommodations being used until the lab is rebuilt.
After dinner Tony gave us a great introduction to the lives and life histories of sea turtles and prepared us for tomorrow’s field work.

Brianna and Dr. Jeff Schmid bailing the Myakka. Rain, rain, rain../Copyright Earthwatch - Jocelyn HubbellDay 2 – March 17, 2005
Pouring rain greeted the team this morning along with a great egret that walked right up to our screened porch and stood within three feet peering at us during breakfast! Despite the rain, we prepared the gear, launched the boats and brought them dockside in the canal behind the house, and made ready for on-water surveys with high hopes for a clear afternoon.

Heavy rain kept us and the “Myakka” (a 17-foot jon boat used as the net boat) and the “Anna B” ( a 25-foot Proline used as the lookout boat) on hold. Tony and fellow turtle biologist Dr. Jeff Schmid took advantage of the rainy day by providing us with more turtle biology and background information about their research.


Some interesting facts from today’s learning sessions are:

1. The incubation temperature of turtle eggs determines the sex of the hatchling; warm temperatures produce females, cool temperatures produce males
2. Sea turtles come back to their place of birth to nest, some from wanderings of thousands of miles away
3. Only 1 in 1,000 turtles will survive to adulthood
4. Sea turtles are long-lived, and can reach 80 to 100 years of age

Wood stork / Copyright Earthwatch - Jocelyn HubbellDay 3 – March 18, 2005
Morning dawned with a glorious sunrise. The team was up by 7:00 a.m. and excited by the prospect of finally getting out on the water to net turtles. The Myakka and Anna B were equipped by 8:00 a.m. The task made all the more enjoyable by a visit from three great egrets and a wood stork. We were intrigued by their boldness and apparent mistaken impression that we were fishermen with bait to share.

Once loaded, the boats and team made way through the maze of Pine Island canals to Pine Island Sound. The man-made canals provide a highway for boats that here are as common as cars. Brown pelicans, great egrets, and great blue herons flew and rested along the canal, while osprey soared above. Eventually the canal gave way to the mangroves and Pine Island Sound.

In Pine Island Sound the Anna B leads and provides a wake ride for the smaller Myakka, which is unable to negotiate large waves Great egret / Copyright Earthwatch - Jocelyn Hubbellcomfortably at cruising speed. The Myakka is our net boat. She carries the 200 yard by 4 yard net that we will “set” to catch turtles. The net mesh is made of 6-inch wide string squares that run vertically point to point, resembling the pattern of an argyle sweater. Each 6-inch square is designed to stretch to 12 inches to allow fishes and other small marine animals to escape, yet still entangle turtles. Running the length of the top of the net is a “float” or “cork” line, a foam-filled rope that provides buoyancy to the top of the net. A “lead” line, which as the name implies is a lead-filled rope, runs the length of the bottom of the net. It assures that the net bottom will sink and create a net wall stretching from the surface of the water to a depth of 12 feet. The Myakka also carries 14 orange, bullet-shaped buoys. These are clipped one-at-a-time to the float line at 15-foot intervals as the net is deployed. The bullet buoys provide additional flotation to the cork line, warn boaters to stay away from the net, and help to alert us if an animal is caught in the net. The buoys lie on their sides when the net is slack. When an animal becomes entangled, the buoys on either side of the captured animal will bob and be pulled into an upright position as the animal struggles to fee itself. Two large, round, red buoys are used to mark the ends of the net; one at each end. Two anchors, one at either end, will hold the set net in place. A round, white buoy with dive flag is used to mark the center of the net. Also aboard the Myakka are a depth sounder and compass, a GPS unit, a net hook for grabbing the net, and a large hand-net for removing turtles from the set net.

Deployed net set. Henry  Greenewalt getting ready to "walk" the net. /  Copyright Earthwatch - Jocelyn HubbellThe Anna B is the spotting boat. She is much larger than the Myakka and hauls all the team’s personal gear, our lunches and water, and the turtle measurement and tagging tools. Team members aboard the Anna B keep vigilant lookout for the “three marine mammals”: dolphins, manatees, and humans in speeding boats; all of whom we do not want to catch in our net!

By 9:30 a.m. we arrived at our net setting site. Dolphins repeatedly surfaced and circled the area. Though exciting to see, they are very hard to get out of a net and their presence kept us from setting the net for the next hour. This time was not wasted however. Tony gave us a review of the boat safety procedures, set net deployment, and survey techniques.

Briana Brown "walking the net" with assistance form Aubra. / Copyright Earthwatch - Jocelyn HubbellBy 10:30 I transferred from the Anna B to the Myakka with expedition volunteer Aubra Shepard, fellow educator Briana Brown and principal scientist Dr. Tony Tucker. We set the net at a 45 degree angle to the wind. First, one of the two net anchors was dropped to snag into the bottom. Then one red buoy was clipped to the top of the anchor line where it meets the net “bridle” (a line that attaches both the top and bottom of the net to the anchor line.) Aubra and I then deployed the cork line and clipped the bullet buoys at 15-foot intervals while Briana deployed the heavy lead line over the starboard side of the skiff. After the last anchor was placed, we patrolled the net continuously for the next two hours. At 15-minute intervals, one of us would “walk” the net. The net walker would move to the small, flat bow deck and, starting at one end and working the entire length of the net, pull the net partway out of the water to check for turtles and any other captured animals. The first net walk was uneventful. Successive passes produced a total of six cow nose rays. Great care was taken while removing them from the net so that they were not harmed and their poison-filled tail barb would not strike any of us. Each was released back into the sound immediately. After two hours, we pulled and stowed the net and headed to the Anna B for a well earned lunch break. After lunch, I again boarded the Myakka, this time with expedition volunteers Anita Corliss and Anita Corliss walking  the net. / Copyright Earthwatch - Jocelyn HubbellHenry Greenewalt, and turtle researcher Dr. Jeff Schmid. We tended and walked the nets for three hours. Our net walks yielded a cow nose ray and a five-foot long bull shark. Each was carefully brought aboard the Myakka for detangling from the net, and then released. Even though we did not catch any turtles by the time we pulled the net, we all felt rewarded to have learned the net setting and walking skills, to have seen the rays, shark, and dolphins, and to have spent our first day on the water.


Day 4 – March 19, 2005
This morning we fell into our boat loading routine like old sea hands. The Myakka and Anna B were ship shape and ready to go by 8:00 a.m. Each morning we are awake by 7:00 a.m., make our breakfasts, fill the lunch cooler, fill water bottles, and boil water for the precautionary “stingray” thermos. If a team member is stung by the sharp tail barbs of a ray, the hot water would be poured over the sting to denature the protein and reduce its toxic effect. Tony and Jeff take great care when we bring aboard a net section with a ray. Each is adept at quickly untangling the animals and returning them to the water.

Our ride through the canal brought us more bird sightings: osprey, terns, a little blue heron, great egrets, yellow-crowned night herons, turkey vultures, and pelicans. Out in Pine Island Sound I spotted, and called the team’s attention to, a bald eagle perched high on a power pole. It was thrilling to see this powerful raptor, and we all took it as a good sign of what the day had in store for us.

I assisted in the lookout boat for the morning watch with Aubra and Dr. Jeff. We were free and clear of dolphins, but pelicans were plentiful and actively feeding around the boat. It was hard not to get distracted from our marine mammal lookout duties when several pelicans dove within ten feet of us! Jeff’s good eye caught site of the first Kemp’s ridley of the day at 9:50 a.m. just north of were the set net had been Eagle ray / Copyright Earthwatch - Jocelyn  Hubbelldeployed. A second sighting was called out at 11:55 a.m., again north of the net. Meanwhile, the net boat crew walked the net every 15 minutes in hope of catching one of the turtles we spotted. Instead, they caught an eagle ray (female with a 2-foot “wingspan” measuring pectoral fin to pectoral fin tip) and a small black-tipped shark.

The boat crews rotated after lunch. Henry worked a second shift aboard the net boat and was joined by Aubra, Jeff, and me.
We set the net and waited for the first tell-tale signs of a tangled animal: an abnormal bobbing of a buoy, buoys pulled upright, or the most welcome sign – splashing and a flipper sighting at the surface. At 15-minute intervals we walked the net, rotating the walker each time. In between walks, we let the boat drift by the net and kept watch for turtles and marine mammals. Dr. Jeff also entertained us with two ridley turtle songs he composed for children. Briana and I will be teaching them to the children of Rhode Island and Maine when we return from this adventure.

Later in the afternoon, Henry and Jeff switched out of the Myakka and Briana and Tony switched in. Our afternoon efforts yielded two cow nose rays and a large male eagle ray, measuring over three feet in wingspan. Eagle rays are stunning creatures both above and below water. They are sleek and beautiful, and graceful swimmers. Their eyes have a vertically elongated pupil, resembling a cat’s eye. Their snout is reminiscent of a foreshortened duck’s bill. Their back, or dorsal surface, is a deep brownish-black with white spots. Their underside, or ventral surface, is white. This dark-on-the-back, white-on-the-belly coloration is known as counter shading. It serves to camouflage the animal against the water’s surface when viewed from below, and against the dark depths of the ocean when viewed from above.

Though disappointed that we did not catch any turtles, we were happy for the two sightings, now data points on the research map, and for another amazing day on the water.


Day 5 – March 20, 2005
This morning I went for an early run around the neighborhood to give my legs some much needed aerobic exercise. The net setting, walking, and especially pulling is great exercise, but it tends to be mostly an upper body workout. My legs were itchy for a challenge, so off I went to explore the neighborhood that as of yet I had only glimpsed by boat. The neighborhood gives way to mangroves and marshes on one side and homes lining cul-de-sac streets on the other. Several dogs announced my presence as did two wary mallards in the marsh. One kind, well-bundled gentleman exclaimed “Aren’t you cold?” in question of my shorts, sleeveless shirt, and Tevas for running in the already 60 degree morning. I chuckled to myself and replied, “No, I heat up fast once I get going,” thinking it best not to launch a discussion of my Maine running habits and cold tolerance.

Once back at the expedition house, I quickly showered, breakfasted, and joined the team in morning preparations. I noticed a fisherman in the canal as I was loading the Myakka. He was repeatedly casting and pulling in a small throw-net. I gave a hello and Fisherman working the Monroe Canal for pin fish. /  Copyright Earthwatch - Jocelyn Hubbellstruck up a conversation. He explained that he had heard that pin fish - also known as sugar bream (Lagodon rhomboides) were in the canals but he had been unsuccessful thus far. Tony asked if he had seen any turtles out in the sound lately. The fisherman said that he used to see lots of them as a boy, but that he had not seen very many over the last several years. He lamented that the fishing had changed since the increase of people, homes, and boats in the area.

Everyday we notice more details along the canals. There is so much to take in. The tightly spaced homes, multitude of boats, yard ornaments, plants, and the ever-present egrets and osprey. Today a little blue heron deftly tiptoed along a line of oysters that clung to the side of the canal. It reminded me of a carefully choreographed tight-rope walking act. I am beginning to be able to identify some of the trees by sight: the salt tolerant red mangrove trees which were called the “walking trees” by Florida’s native View along the Monroe Canal . /  Copyright Earthwatch - Jocelyn HubbellIndians because of their progressive, arching root system, the coconut palm, royal palm, and the sabal or “cabbage” palm which is Florida’s state tree. I recognize some plants growing outdoors here that would be considered houseplants or annuals in Maine: rose hibiscus, snake tongue (also known as mother-in-law tongue), and vinca.

The net was set by 9:30 a.m., tended for two hours then reset after lunch. We moved just north of Regla Island and reset in 7.2 feet of water at 2:30 p.m. Here we tended for three more hours. Our day yielded two cow nose rays, an eagle ray, and a spider crab – considered good eating by ridleys! Yet we neither spotted nor netted turtles. We have learned however, that documenting absence is just as important as documenting presence. Our data will help, over time and combined with other types of turtle monitoring and study techniques, to document the habitat use of the area. We have also learned that biologists need to be very methodical, patient, and constantly alert. All in all, a very interesting day.
Briana, Anita & Aubra aboard the Anna B. with Dr. Jeff Schmidt at the helm.  / Copyright Earthwatch - Jocelyn Hubbell

Day 6 – March 21, 2005
The Solstice greeted us with fair skies and a beautiful sunrise. We loaded the boats and set out for the sound. The Monroe canal has become a familiar waterway and we now know where to look for the different birds that greet us on our morning commute. Their daily activities have become a part of our lives and we miss them if they do not pay a visit. Every morning we note the osprey nests and check to see if an adult is setting the nest with its pair on lookout near by, or setting solo. Pelicans like to roost on the top of pilings, many of which have been capped with plastic covers, resembling in shape the point of a crayon, by people who do not want to have to clean bird droppings from their docks. I have noticed that at most docks people tend to leave one or two pilings un-capped (generally those furthest out in the water) for the birds to roost upon.

Briana blowing a kiss to a mangrove crab. / Copyright Earthwatch - Jocelyn HubbellThis morning we stopped by the local hardware store / boat launch, owned by Bob – a colorful local character who provides the boaters and fishermen with maps, hardware, boat supplies, fishing advice, and, from the looks of him, I’d say he could have spun us a yarn or two had we the time. But, we were there to get ice for our cooler and had a date with the turtles. We did find a few moments to play with a mangrove crab that was found on the dock. I snapped a picture of Briana blowing it a kiss before we let it go.


Aubra Shepard with  whelk egg cases. / Copyright Earthwatch - Jocelyn Hubbell We set the net a bit north of Regla Island. During one of the walks, Aubra cried out “snake.” I quickly stashed my journal and went to the bow to assist, all excited to be seeing a new creature in our net. Tony was at the bow in a flash too. As Aubra carefully pulled the webbing up to bring the snake on deck, we realized that the “snake” was in fact a string of whelk egg cases – an 18-inch long stand of opaque, flattened ovals ranging in diameter from 1-1/4 to 1/8 inch. Within each egg case were pen-point size eggs, about a dozen in each. After we shared our find all the members of our team and snapped a few photos, we set it adrift, as it should be, in the sound.

 


Whelk display at Mote  Aquarium. / Copyright Earthwatch - Jocelyn  Hubbell

Briana, aboard the Anna B and working as a lookout, called out a turtle sighting during the morning watch. She saw a Kemp’s ridley about 30 feet off the port (left). She saw the characteristic small, light head pop up out of the water as the turtle took a breath. Since it was facing her in a vertical stance, she could also see the light plastron (underside or ventral side) and the elongated and flattened forelimbs – the flippers. It was only at the surface momentarily, and then dove. As it descended, Briana saw the domed, light-brown carapace (back or dorsal surface) which she estimated to be a bit larger in size than the average dinner plate. She could also see all four flippers as it paddled away. Though this turtle did not swim into our net, her sighting will become another data point on the research map.

The wind picked up throughout the morning making it difficult to set the net with the appropriate amount of slack. A tight net allows the turtles to bounce out of the net. A slack net will wrap and entangle the turtle as it tries to get away. While walking the net we only saw one cow nose ray, and it glided by. We are starting to make jokes about the various sea grasses and weed that we seem to be good at catching and must shake from the net during the walk. Turtle grass has flat, broad blades and when held up to the sunlight shows stripes of individual rectangles stacked end to end. I wonder if we are really seeing the cell walls of this plant. Manatee grass is very slender and round stemmed. It usually comes up with its roots attached. The most prevalent sea weed we are snaring is very glossy and opaque, with colors ranging from almost clear to light tan-orange.

The water is not the clear blue that one expects in southern oceans, but a tan-brown from the tannins washed in from the soil, and due to the erosion caused by last summer’s hurricane Charlie. We have not taken any secci-disk readings (a black & white plastic disk that is lowered into the water, via a depth-marked rope, to determine visibility) but I’d say we have had on average only four foot visibility, and murky at that. The combination of murkiness and caught seaweed leads to what we call “ghost turtles” – a momentary adrenalin rush felt upon thinking “I’ve a turtle” (which we have learned to refrain from blurting out right away) and dispelled upon pulling up the webbing to find a mass of seaweed waving in the tide.

At lunchtime the wind was continuing to increase. Instead of anchoring in exposed water we found a bit of a sheltered spot near one of the small islands know as a key. A pair of dolphins followed us in and stayed within 25 feet of our port side for about half an hour. Tony and Jeff discussed the wind conditions, current, increasing white caps and wave heights, and scouted the map for a new location. We all put our foul weather gear on and headed out to check our options. Two sights were scouted, both a wash due to the wind and choppy sea. Tony and Jeff alerted the team that we had been foiled by the weather and they were going to call it a day. Even though we once again did not net a turtle, and the weather had been unfavorable, we were happy to be out on the water to enjoy a day of fresh air, camaraderie, and wildlife.

St. Jude Nature Trail boardwalk / Copyright Earthwatch - Jocelyn HubbellThe boats were ship-shape and gear stowed by 4:00 p.m. We took advantage of our time by going for a walk through the neighborhood and found a nature trail, just down the block from our house, into the mangroves. The St. Jude Nature Trail, maintained by The Calusa Land Trust & Nature Preserve of Pine Island, Inc., provided a brief introduction into the plants and animals of the area through the trail-side interpretive signs and plant tags. A boardwalk and wooden overlook marked the terminus at water’s edge and the turn around point of the trail. We enjoyed the leisurely half-hour of exploring and spotted hermit crab holes, watched numerous mangrove crabs and small lizards skitter along the branches of the white mangrove trees, and marveled at the flowers in bloom.

Dinner was declared “left-over” night and we made a great meal by cleaning out the refrigerator. Jeff treated us to two more of his wonderful turtle talks: Turtle Diseases & Treatment and Anthropomorphic Impacts (manmade or human-caused impacts to sea turtles). He provided us with the latest information about fibropapilomas – a viral infection that is seen most commonly in green turtles. Then he discussed human impacts on turtles since the 1800’s. The turtle soup industry had a huge impact (mostly green turtles) in the early days along with the harvesting of hawksbill turtles for their “tortoise shell” for the making of hair combs and fashionable accessories. Present day impacts include the commercial fishing industry, which through its fishing techniques still catches turtles (known as by catch). The introduction of TEDs (Turtle Excluder Devices) has helped to reduce the numbers of turtles caught in trawl nets. Recreational fishermen, boaters, beach goers, and those that build their homes near beaches all have an impact on turtles. All of us need to learn more about the animals whose habitats we share, no matter where we live, so we can all be better stewards and enjoy the great diversity of life that is on this earth.

Day 7 – March 22, 2005
Today was our designated day to play and be free from field work. We were able to sleep in and get on the road to Sarasota by 8:30 a.m. By 9:30 we were on I-75 along an undeveloped area, between the east side of Oscar Scherer State Park and the South-west section of Myakka River State Park, crossing the scrub plains, home of the gopher tortoise, scrub jay, and the crested caracara. It was nice to see this respite from the mass of new, cookie-cutter developments of look-a-like homes and shopping plazas. I found myself wondering why homes and plazas throughout our country are not built in a way that reflects the unique cultural and natural history of the area, each building unique and fitting within its surroundings, helping to tell the story of the area, yet with a priority on the economy of natural resources and preservation of neighborhood parks and wildlands. And yes, I know the answer is monetary, that it is cheaper to build cookie-cutter style; cheaper in the short term. But so much more costly in the long term when one considers the impacts of poorly planned development: boringly repetitive house and building design, loss of the unique neighborhood or community, over-emphasis on lawns, loss of natural lands to play, walk, explore and relax upon, over-emphasis on driving, traffic congestion, loss of wildlands and potential parklands, degradation of waterways and traditional wildlife migration corridors,  and thus the long-term loss of quality of life and health for both us and our brethren (animals & plants) that share this Earth. I sat pondering this for quite some time…saddened to have seen this in other parts of the U.S. too, knowing that it is happening worldwide… hoping that this journey to the turtles had in some small way helped to negate some of the consequences of our species’ short-term thinking.

Anita, Briana, Aubra & Henry / Copyright Earthwatch - Jocelyn HubbellOur destination was the Mote Marine Laboratory & Mote Aquarium in Sarasota. Tony took us on a tour of the Mote offices, introduced us to his fellow scientists, showed us his collection of books, and then pointed us in the direction of the aquarium.  Here we were able to see a green, a ridley, and several loggerheads up close. The turtles that come into Mote are usually rehabilitated and released.

The turtles on exhibit are kept at Mote due to injuries or behaviors (i.e. a life in captivity that creates dependency on humans for feeding) that prevent them from being released to the wild. Though it was interesting to see the turtles up close, I lamented that they would never Loggerhead turtle / Copyright Earthwatch - Jocelyn Hubbellexperience their lives as they were meant to be – as free wanderers of the ocean.

Near the turtle exhibits was a replica TED (Turtle Excluder Device – used on commercial shrimp trawlers to provide sea turtles with an escape hatch from the trawler nets yet allow most of the shrimp to be caught in a sack-like net at the end.) Visitors are encouraged to crawl through the TED to get a hands-on experience in how they work. We all crawled through, much to the delight of staring childreJocelyn Hubbell crawling through the TED / Copyright Earthwatch - Jocelyn Hubbelln who had been, up until then, the almost exclusive TED adventurers. There were many other marine exhibits. Among them were manatees, a preserved giant squid, a variety of fishes, a touch tank, coral reefs, hermit crabs, baby octopus -a microscope live view via computer monitor (the babies flit about in such a jittery way that we joked that they looked liked victims of caffeine), and a shark movie that creatively cast the viewers as the shark.

Cuttlefish / Copyright Earthwatch - Jocelyn HubbellThe cuttlefish, sea horses and jellyfish were my favorites. Across the street from the aquarium I spotted and snapped a quick photo of Mote’s Eugenie Clark, a boat named in honor of world-renowned ichthyologist and shark researcher Dr. Eugenie Clark .I have added her book The Lady and the Sharks to my must read list.
The Eugenie Clark / Copyright Earthwatch - Jocelyn Hubbell

After a late lunch at the sea-side Salty Dog, Tony dropped us off at the John & Mable Ringling Museum of Art so we could view the Ansel Adams & Clyde Butcher photography exhibit. I am a fan of black and white photography and have long admired the work of Ansel Adams. I saw here, for the first time, some of his portraiture and non-landscape photography. I was taken by a photo he composed of Edwin Land (inventor of the Polaroid Land Camera) that was on loan from the George Eastman (founder of Kodak) collection and a simple yet elegant shot of wooden door. Clyde Butcher’s photography was on the grand scale. Reproduced large format, each at least four by six feet or larger, giving the impression that you could walk right in and be a part of the landscape. Given our limited time, we could hardly see all the other exhibits. I decided to spend the rest of mine meandering the sculpture gardens and enjoying the gloriously warm afternoon. A gracious visitor took this photo of us at the turtle fountain.

Jocelyn, Aubra, Briana, Anita & Henry at the turtle fountain / Copyright Earthwatch - Jocelyn Hubbell

Our evening was spent devouring the best take-out pizza I have ever had the pleasure to eat, and playing a round of “celebrity” – a very amusing and creative game that Briana introduced to us. Then I was off to bed, happy, exhausted, well-fed, to dream of turtles.

 

 

 



Day 8 – March 23, 2005

This our last day on the water and the weather was not favorable. The morning reports warned of a severe front moving in from the north-west: high winds, approaching thunderstorms with predicted cloud to land lightening, and a tornado warning to boot! All predicted to start in the early afternoon. Wary but undaunted we proceeded in good spirits. Our great egret friend, “Chaz”, appeared while we were loading the boats. Ever hopeful that we might indulge his hunger, I’m sure. During our ride down the Monroe Canal we spotted: a mature bald eagle, a black-crowned night heron, great blue herons, laughing gulls, great egrets, mocking birds, osprey, and pelicans. Jeff pointed out the paper bark tree(Melaleuca quinquenervia) an invasive tree from Australia, and the gumbo limbo (Bursera simaruba) or “tourist tree” so called because the bark is the deep red of a sunburned tourist. This tree is also known commonly as the torchwood and as dysentery bark due to the historical use of its bark to sooth stomach cramps. Others call it the living fence post because a fresh-cut limb set into the ground as a fencepost will grow a new tree. Jeff suggested a good plant-related read, Nature and the English Diaspora by Thomas Dunlap, an account of the environment and history in the United States, Canada, Australia, and New Zealand.

Myakka riding Anna B's wake / Copyright Earthwatch - Jocelyn HubbellOut on the sound we were treated to the sighting of an albatross, royal terns, cormorants, and a frigate bird. The albatross was all the more wonderful to see as I had started to read, and become fully engrossed in, Tony’s copy of Eye of the Albatross by Carl Safina during yesterday’s ride back from Sarasota. This albatross caused me to recall some amazing facts: albatross have the largest wingspans of any birds – the wandering and royals can reach over eleven feet wingtip to wingtip, albatross sleep on the wing, they can live past sixty years of age, their annual flights equal the distance of flying three times around the earth at the Earth’s equator…

We cruised slowly by the now familiar osprey nest on the “Resume Normal Safe Osprey at nest on sign / Copyright Earthwatch - Jocelyn HubbellOperation” sign, skirted the MacKeever Keys side of Chino Island, and made our way north along Regla Island. Anita, Aubra and I began deploying the net at 9:10 a.m. in eight feet of water reading 72 degrees, but had to suspend our work within ten minutes due to a dolphin sighting. We sat quietly alert for fifteen minutes before being given the all clear to resume setting the net. Every twenty minutes there after we sighted dolphins. Luckily, none came close enough to stop our work. We completed three net walks that yielded only sea weed (Sargassum sp.) and a plastic shopping bag. The bag was a good, though distressing, catch. Sea turtles often mistake plastic bags and balloons for jelly fish. When ingested, they do not break down readily, provide no nutritional value, and can create a lethal intestinal blockage.

At 10:40 a.m. we switched crew, Briana and Henry joining Tony and I on the Myakka while Anita and Aubra joined Jeff on the Anna B., and began watching the sky intently. A long bank of clouds, stretching east and west as far as the eye could see, was moving in on us. The cumulous clouds were building to cumulous-nimbus; a sign that severe weather was on its way. Briana got the last walk of the day. By 11:00 we were pulling in the net and buoys as fast as we could; the day scratched by the in-coming storm.

Anita Corlis with leatherback puppet / Copyright Earthwatch - Jocelyn HubbellWe made a speedy retreat off the ocean to the protected water of the Monroe Canal.
But we were still light-hearted and in the mood for fun. Several of our team posed with the leatherback turtle puppet I purchased yesterday at Mote as a mascot for our team and teaching tool for my turtle programs in Maine.

Along the canal we spotted a cormorant that had caught a fish with hook and two feet of line still in the fish’s mouth. There was nothing for us to do but watch the bird carry it off with our hopes that it would not swallow this catch.

Briana, Tony, Henry, Anita, & Aubra getting ready to clean the net /  Copyright  Earthwatch - Jocelyn HubbellThe boats were unloaded under a grey and imposing sky. The Anna B. was piloted to the launch near Bob's hardware store and pulled from the water. We had a quick lunch then set to cleaning the net and all equipment. Thunder rolled in with flashes of lightening as we were completing our task. The sky opened with an impressive downpour just as we scurried to the house.

We spent our last evening together having a special dinner out at a local seafood restaurant. A quiet awkwardness was starting to impart itself on the group as we each began to realize that the adventure was ending and thought of the responsibilities we had left behind. We talked about what we were thinking, and it lightened the mood and our minds. After dinner and back at the “Mote L”, as I have dubbed our house, we settled in to another rousing round of “celebrity” before calling it a night.

You may also want to check out Jocelyn's fellow educator Briana's Turtlemania website at Save the Bay, Rhode Island.

Sea turtle resources:
Books
For Adults:
So Excellent a Fishe: A Natural History of Sea Turtles
by Archie Carr

Fire in the Turtle House: The Green Sea Turtles and the Fate of the Ocean
by Osha Gray Davidson

Time of the Turtle
by Jack Rudloe

AquaGenesis: The Origin and Evolution of Life in the Sea
by Richard Ellis

For Children:
Interrupted Journey: Saving Endangered Sea Turtles
by Kathryn Lasky

Sea Turtles: Ocean Nomads
by Mary M. Cerullo

Sea Turtles
by Gail Gibbons

Video Recording
Sea Turtles: Ancient Nomads
National Audubon Society, Inc. & TBS Productions, Inc.

Websites
Florida's Endangered Sea Turtles
http://www.earthwatch.org/expeditions/tucker.html
This site describes the sea turtle research lead by Tony Tucker within the Charlotte Harbor National Estuary and how you too can get involved.

Mote Marine Laboratory Sea Turtle Conservation and Research
http://www.mote.org/~jerris/TurtleResearch/index.phtml
This site provides information about sea turtle research, nesting, hatchling survival, the Adopt-A-Turtle program, FAQs, and tips on what to do when visiting sea turtle habitat.


Earthwatch Institute is a world leader in the field of experiential education providing opportunities in the field and on-line for volunteers to broaden their understanding of sustainability and support of conservation research. There is no experience necessary to be involved and hundreds of teams worldwide that need support. Visit the Earthwatch website or call 800-776-0188 for more information.

Executive Director
Jocelyn Hubbell

jhubbell @ curtislibrary.com
(207) 725-5242 ext. 238

Cornerstones of Science

Last updated January 3, 2007