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Dolphin & Whale HospitalandSea Turtle Rehabilitation Hospitalat Mote Marine Laboratory |
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Animal Care News |
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October 30, 2003 |
Volume 4, Issue 2 |
| Inside this issue . . . |
| Moonshine & Vixen |
| Carter Comes and Goes |
| Sea Turtle Hospital |
| Sea Turtle Exhibit |
| Stranding Investigations |
| Manatees |
| Click here for past newsletters |
Simone, the dwarf sperm whale that was brought to the Dolphin and Whale Hospital as an orphaned infant one year ago last July, died on October 22 in the lat evening. A necropsy revealed that she suffered from an intestinal impaction, the same condition that has affected virtually every pygmy and dwarf sperm whale that has been seen at the DWH. Unfortunately, the physiology and anatomy of the intestinal tract of these two species make treatment virtually impossible and every possible treatment that has been tried has failed. Staff from Mote and the Dolphin and Whale Hospital are now working on a project with NOAA Fisheries to collect deep water squid that can be analyzed to determine what may be in their diet that will prevent this from happening again. This study should take about one year, and in the mean time, it is planned not to accept any more kogias until there are more answers that can help keep the animals alive. During the 15 months that Simone was at DWH (a world record for the dwarf sperm whale), much was learned about this rare species, such as their breath-hold times, vocalizations that had never been recorded before, etc. Information regarding this rehabilitation as well as other kogia rehabilitation will be presented in two talks being given at a workshop held in conjunction with the Biennial Conference on Marine Mammal Biology this December in Greensboro, North Carolina.
Animal Care Program Welcomes Tonya Clauss, DVM
The Animal Care Program is pleased to welcome Dr. Tonya Clauss to the veterinary staff. Dr. Clauss completed her DVM at University of Florida in May 2003, and has completed internships at the Florida Aquarium and Sea World Australia. Dr. Clauss will be working with the Dolphin and Whale Hospital, the Sea Turtle Rehabilitation Hospital, and caring for captive sea turtles and manatees, as well as taking responsibility for the veterinary care of the fish and invertebrates at the Mote Aquarium. We wish Dr. Clauss the best of luck in her new position here at Mote.
Moonshine and Vixen Recuperating in DWH Lagoon
In late June Moonshine, a pantropical spotted dolphin, was brought to the Dolphin and Whale Hospital from the Florida Keys. Moonshine stranded in the Florida Keys in April. The animal suffered from mobility problems, liver problems and sunburn and had been maintained at a Marine Laboratory on Long Key, but space was no longer available for him there, so he was brought to the Dolphin and Whale Hospital to complete his rehabilitation. Upon arrival, the dolphin was very stiff, and had difficulty swimming on his own. The dolphin was treated with physical therapy to increase its mobility. This animal had a large, healing burn wound on its back, suffered while the dolphin was stranded on the beach before transport. The wound was treated topically.
Because the Dolphin and Whale hospital was technically full at the time of Moonshine's arrival, Moonshine was placed in one of the critical care tanks with Vixen, a rough-toothed dolphin that had been at the hospital since Christmas, 2002. Since Moonshine had shown little inclination to swim during his early rehabilitation, it was hoped that having another dolphin present would increase his mobility. A barrier divided the tank between the two dolphins, but as Moonshine's condition improved and the dolphins showed signs of getting along, the barrier was removed. Finally, the two dolphins were placed into the 200,000 gallon rehabilitation lagoon together, and both are doing well. Moonshine continues to increase his flexibility and mobility, the burn on his back is completely healed, and his liver values continue to improve. Vixen, the rough-toothed dolphin that was brought to the lab suffering from severe gastric ulcers and pneumonia, is currently in the last stages of rehabilitation and will be evaluated for release by NOAA Fisheries in the very near future.
We would like to thank the many volunteers who have given generously of their time and effort over the summer to help these patients and others through their rehabilitation. (Back to top)
Carter, the yearling Atlantic bottlenose dolphin calf, was released back into his home range in the Indian River Lagoon on Thursday, October 23, 2003. The calf, affectionately known as "Critter" by his caretakers, had been at the Dolphin and Whale Hospital since August. Carter was brought to the hospital after his mother, a well-known animal in the Indian River Lagoon system, was found dead by researchers doing dolphin surveys in the area. Upon arrival at the hospital, the underweight calf began eating immediately. During the course of his rehabilitation, the calf gained substantial weight and amused caretakers by his active play in the rehabilitation tank. In early October, Carter was approved for experimental release by NOAA Fisheries (the release was considered experimental due to Carter's young age) and permission was granted to return him to his home in the Indian River Lagoon. Staff from Harbor Branch Oceanographic Institution transported Carter by truck to Harbor Branch, where he was placed in a lagoon pen for a short time, then released. The calf quickly joined up with some local animals, then set off on his own to explore the lagoon. Carter was fitted with a radio transmitter, attached to his dorsal fin, and he will be intensively monitored for the next few weeks to insure that he is capable of foraging and surviving in the wild. Many thanks to the Staff at Harbor Branch Oceanographic Institution and NOAA Fisheries for help and support during Carter's rehabilitation and release. (Back to top)
It has been at busy summer at Mote's Sea Turtle Rehabilitation Hospital. We began the summer still treating several turtles that had arrived at the hospital in 2002. The three remaining cold stunned turtles from New England, Blizzard, Frosty and Glacier, progressed through the last stages of their rehabilitation and on August 1, 2003, all three turtles were released off Florida's east coast. Stubby, a large male loggerhead turtle that arrived at the hospital in September of 2002, was released off of Florida's west coast after spending the summer in the Sea Turtle Display area with resident Mote turtles Shelley and Montego. Stubby had arrived at Mote weak, lethargic and unable to eat. It took over four months before the turtle was able to feed on his own. As a breeding age male, Stubby is a valuable member of the loggerhead population, and the staff was pleased to be able to release the turtle back into the wild.
In early June we received another adult male loggerhead. The turtle, nicknamed Bubba, was found floating in the surf off of Jekyll Island in Georgia, and was transported to The Sea Turtle Rehabilitation Hospital by the Georgia Department of Natural Resources. The turtle suffered from neurological and parasite problems. After 101 days of care, Bubba was transported back to Georgia by the Georgia Department of Natural Resources for release into Georgia waters. Also in June, the hospital received an adult female loggerhead turtle, Silver, that was found floating in the waters off of Longboat Key. This turtle was emaciated, covered in barnacles, and extremely anemic, but she responded to treatment and was released off the west coast of Florida in early September. In August a Kemp's ridley turtle, Storm, was brought to the hospital after being recovered from the beach on Lido Key. This turtle is suffering from severe pancreatitis and throat lesions. The turtle is currently being treated with antibiotics, insulin and a pharangostomy tube was placed in the animal's throat to facilitate feeding. This turtle is still critically ill at this time.
Over the summer, four turtles were brought into the hospital for treatment that did not survive.
The hospital is still caring for two turtles with fibropappilloma tumors. Pappy, the juvenile green turtle, has had all of its tumors removed with no evidence of recurrence. The turtle's appetite is excellent and we are optimistic about this turtle's chances for release. T, the Kemp's ridley turtle that is currently sharing the tank with Hugh and Buffet, has had several recurrent tumors this year and has been treated several times using cryosurgery. This turtle is currently doing well. Ti, the green turtle brought back to Mote early this year after release last November, is doing well and currently being considered for release at a future date.
The staff would like to thank volunteers Ron Therrien and Charlie Froonjian for helping to refurbish turtle tanks and water systems in the greenhouse. We appreciate all of the volunteers who help care for the turtles at the Sea Turtle Rehabilitation Hospital. Many Thanks. (Back to top)
The Sea Turtle Exhibit inhabitants continue to do well. Edgar, Hang Tough, Shelley and Montego were recently a part of an enrichment study to determine how sea turtles benefit from environmental enrichment. We collected data from over 3200 minutes of observations with and without enrichment devices (toys) and hope to have the results published in a peer-review journal soon. We discovered through this project, that the turtles spend less time sleeping and more time active when enrichment devices are present and that each turtle has a "favorite," or more effective, toy.
Hatchling season is almost over for the year, with just a few nests left that are due to hatch toward the end of October and early November. We have had over 1600 hatchlings come into the hospital this year, with an almost 90% release rate. We had some success with treating hatchlings that came in with fire ant bites, with several of them released, and plan on continuing with this treatment next summer. We also had several with flipper constrictions that responded well to the therapy and were able to be released. Hopefully, all hatchlings will be released by October 31st. (Back to Top)
Marine Mammal Stranding Investigations Program (MMSIP) May - Oct. 2003
The Stranding Program will be offering an "Assessment of Marine Mammals and Sea Turtles Class", in January 2004. The class will cover how to assess whether a manatee, dolphin and/or sea turtle is behaving normally or is sick/injured. You must have taken the Animal Handler Class and have volunteered in the Dolphin Whale Hospital (DWH) for at least 3 months to be eligible for this stranding class. Please staye tuned for more information regarding the exact date and time of the class. This class will be offered again in June/July 2004 if you are unable to attend in January.
During May to October 12, 2003 stranding staff were busy responding to manatee verification, dolphin, and turtle stranding calls. During this period, we responded to 82 manatee, 28 dolphin, and 90 sea turtle related calls. We recovered 4 dead manatees and post-mortem examinations of these animals were conducted at FWC Marine Mammal Pathobiology Laboratory in St. Petersburg. We recovered 11 dead cetaceans during this period. We also recovered 44 dead sea turtles (29 loggerheads, 13 Kemp's ridleys, 1 green turtle and 1 of unknown species) and 9 live sea turtles (7 loggerheads and 2 Kemp's ridleys) that were transported to Mote's Sea Turtle Rehabilitation Hospital for treatment.
A summary of all stranded dolphins and whales during this period are listed below:
MML 0320 - This male bottlenose dolphin was found dead on May 6, 2003 in Terra Ceia Bay. An old, healed shark bite wound was found on its caudal peduncle, otherwise the carcass was unremarkable. Cause of death was not determined due to advanced decomposition.
MML 0321 - This female bottlenose dolphin was found dead on May 19, 2003 on Longboat Key. Cause of death was not determined due to advanced decomposition.
MML 0322 - This bottlenose dolphin was found dead on May 24, 2003 on Longboat Key. The animal was a neonate and only partial remains were present. Cause of death was not determined.
MML 0323 - This male bottlenose dolphin fetus was found dead on June 6, 2003 in Palma Sola Bay. Preliminary cause of death was determined as premature parturition/stillborn.
MML 0324 - This female bottlenose dolphin was found dead on June 11, 2003 in Palma Sola Bay. The animal was a known Sarasota Bay animal "FB 01". Necropsy findings included a foreign body perforation (possible stingray spine) of the intestine and uterus with peritonitis.
MML 0325 - This male bottlenose dolphin was found dead on June 12, 2003 on Captiva Island. He was a known dolphin from Charlotte Harbor, identified by Sarasota Dolphin Research Program staff. Necropsy findings included emaciation. Lab results are still pending.
MML 0326 - Current patient "Moonshine" at the DWH. Moonshine is a male pan-tropical spotted dolphin that was transferred from Marine Animal Rescue Society in the Florida Keys. See Case Synopsis on the DWH page for "Moonshine" for further details on his continued rehabilitation.
MML 0327 - This male melon-headed whale stranded live on July 31, 2003 in Pelican Bay near San Carlos Island in Lee County. FWC staff and Southwest Florida Marine Mammal Stranding Network volunteers responded to the stranding (see picture below). After consulting with NOAA Fisheries and Dr. Charlie Manire, the animal was euthanized by Dr. Deborah Fauquier, due to its emaciated body condition, injuries, and poor chance of successful rehabilitation. This stranding was very exciting to us, as this is the first reported stranding of this species for the entire Gulf coast of Florida! Mote and FWC personnel performed the necropsy on August 1, 2003. Necropsy findings included emaciation and old age.
MML 0327 Stranding, Melon-headed whale (Photo Credit: FWC)
MML 0328 - This melon-headed whale was found dead on August 3, 2003 on Sanibel Island. The animal consisted of skeletal remains with no organs present. Species identification was determined by head shape, presence of "white lips" (see photo above), tooth count, and skeletal features. The proximity of this animal to where MML 0327 live-stranded, and the rare occurrence of this species along our coast, suggests that these two animals may have been in the same group. Interestingly, a "pod" of some 50-100 small, black whales were seen the week prior at the mouth of Tampa Bay and reported to FWC. Though species confirmation was not possible (the animals swam away prior to biologists arriving on the scene), they may have been the same melon-headed whales.
MML 0329 - Current patient "Carter" at the DWH. Carter is a male bottlenose dolphin that was rescued by Harbor Branch Oceanographic Institute on August 9, 2003. See Case Synopsis on the DWH page for "Carter" for further details on his continued rehabilitation.
MML 0330 - This male juvenile bottlenose dolphin was found dead on August 25, 2003 near Palmetto. No external signs of injuries were evident. The carcass was frozen for later examination.
MML 0331 - This male bottlenose dolphin was found dead on September 28, 2003 on Sanibel Island. Necropsy findings included lungworm pneumonia. This was the first animal examined for a recently funded study to the Stranding Investigations Program awarded from Harbor Branch Oceanographic Institute. The goal of this study is to investigate lungworm infection in stranded bottlenose dolphins to better understand the kinds of diseases that may affect the dolphin population at large.
MML 0332 - This male bottlenose dolphin was found dead on October 1, 2003 floating near Gasparilla Pass in Charlotte Harbor. This was a known animal from the Charlotte Harbor area, having been seen by Sarasota Dolphin Research Program in the area since 1982. Cause of death was not determined due to advanced decomposition. The examination of stomach contents revealed 2 loose fish hooks, with some monofilament line attached, and the remains of a large redfish, a species important in the recreational fisheries.
Cause of death categories for 50 (44 dead stranded and 6 live stranded that subsequently died during rehabilitation) sea turtles were as follows:
| Cause of Death Category-Sea Turtles | Number of Animals |
| Not examined (partial carcasses, skeletal remains, unrecovered) |
23
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| Undetermined due to advanced decomposition |
13
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| Fisheries interactions-boat strikes, entanglements |
4
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| Natural Causes (including emaciation, bacterial disease, GI perforations) |
5
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| Open diagnoses |
5
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Total
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50
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Hugh and Buffett continue to participate in daily training sessions that focus on husbandry training, a vibrissae tactile sensitivity task, auditory brain stem response testing, and a thermoregulatory study. In addition, a different method of applying a National Geographic Crittercam to free-ranging manatees will once again be tested with Mote's manatees on occasion throughout the next several months. Hugh and Buffett continue to share their habitat with "T", a Kemp's ridley sea turtle that is being treated for recurrent tumor growths. We would like to welcome our two fall interns, Brandon Jarvis and Annie Breault. (Back to top)
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