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Fertl, Dagmar; Schiro, A. J.; Regan, G. T.; Beck, Cathy A.; Adimey, Nicole M.; Price-May, L.; Amos, A.; Worthy, Graham A. J.; Crossland, R.
(detail)
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2005 |
Manatee occurrence in the northern Gulf of Mexico, west of Florida.
Gulf & Caribbean Research 17: 69-94. 1 fig. 2 appendices.
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Melillo-Sweeting, Kelly; Reid, James P.; Gittens, Lester; Adimey, Nicole M.; Dillet, Jared Z.
(detail)
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2011 |
Observations and relocation of a West Indian manatee (Trichechus manatus) off Bimini, The Bahamas.
Aquatic Mammals 37(4):502-505. 1 fig. (DOI 10.1578/AM.37.4.2011.502)
–Abstract: West Indian manatees (Trichechus manatus) are uncommon in the Bahamas, including in Bimini where only three sightings have been reported in the last century. The close proximity of the Bahamas to the United States necessitates cooperation on many issues, including the management of protected or listed marine mammals. An adult male manatee was observed and monitored from 28 November 2008 to 24 January 2009, enabling us to present details on this rare occurrence and the subsequent bi-national management of this errant individual. TBH-02 "Harold" (aka "Kodi") was radio tagged with an Argos-linked GPS tag and monitored for 41 days. Observations and photo documentation revealed the animal to be in good body condition. Despite five distinctive scar patterns, no match to previously photo-cataloged Florida or Bahamian manatees was possible. Frequent daily GPS tag location fixes were associated with local resources including foraging and resting areas within the North Bimini harbor, and periodic trips to seagrass beds and canals of South Bimini. Despite his frequent visits to specific sites, adequate freshwater sources for drinking could not be identified. His tolerance for human presence, multiple propeller markings, close proximity to peninsular Florida, and preliminary genetic analyses strongly suggested an association with the Florida subspecies Trichechus manatus latirostris. Based on evidence of a Florida origin, the rare occurrence of manatees in Bimini and an apparent absence of conspecifics and reliable natural fresh water, the Bahamas Department of Marine Resources and US Fish and Wildlife Service arranged capture and transport to Florida. The US Coast Guard, Miami Seaquarium and local volunteers conducted the capture and transport. Assessed to be in good health, after a brief rehabilitation, he was radio tagged and released in Crystal River, Florida. This process marks successful marine mammal stranding cooperation between individuals, private businesses and government agencies in two countries.
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Adimey, Nicole M.; Hudak, Christine A.; Powell, Jessica R.; Bassos-Hull, Kim; Foley, Allen; Farmer, Nicholas A.; White, Linda; Minch, Karrie
(detail)
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2014 |
Fishery gear interactions from stranded bottlenose dolphins, Florida manatees and sea turtles in Florida, USA.
Marine Pollution Bull. 81(1): 103-115. 1 tab. 3 figs. DOI:10.1016/j.marpolbul.2014.02.008. Apr. 15, 2014.
–ABSTRACT: Documenting the extent of fishery gear interactions is critical to wildlife conservation efforts, especially for reducing entanglements and ingestion. This study summarizes fishery gear interactions involving common bottlenose dolphins (Tursiops truncatus truncatus), Florida manatees (Trichechus manatus latirostris) and sea turtles: loggerhead (Caretta caretta), green turtle (Chelonia mydas), leatherback (Dermochelys coriacea), hawksbill (Eretmochelys imbricata), Kemp's ridley (Lepidochelys kempii), and olive ridley (Lepidochelys olivacea) stranding in Florida waters during 1997–2009. Fishery gear interactions for all species combined were 75.3% hook and line, 18.2% trap pot gear, 4.8% fishing nets, and 1.7% in multiple gears. Total reported fishery gear cases increased over time for dolphins (p < 0.05), manatees (p < 0.01), loggerheads (p < 0.05) and green sea turtles (p < 0.05). The proportion of net interaction strandings relative to total strandings for loggerhead sea turtles increased (p < 0.05). Additionally, life stage and sex patterns were examined, fishery gear interaction hotspots were identified and generalized linear regression modeling was conducted.
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Cummings, Erin W.; Pabst, D. Ann; Blum, James E.; Barco, Susan G.; Davis, Shannon J.; Thayer, Victoria G.; Adimey, Nicole; McLellan, William A.
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2014 |
Spatial and temporal patterns of habitat use and mortality of the Florida manatee (Trichechus manatus latirostris) in the Mid-Atlantic states of North Carolina and Virginia from 1991 to 2012.
Aquatic Mammals 40(2): 126-138. 1 tab. 6 figs. DOI: 10.1578/AM.40.2.2014.126 2014. Apr. 1, 2014.
–ABSTRACT: Florida manatees (Trichechus manatus latirostris) are known to range north into the U.S. mid-Atlantic during warmer summer and fall months. However, rapid cooling of water temperatures in the fall can be detrimental to their survival in this region. This study reports upon all known manatee sightings (n = 211) and strandings (n = 9) from 1991 to 2012 in North Carolina and Virginia. The goals were to describe spatial and temporal patterns of manatee habitat use and mortality and relate those patterns to seasonal water temperatures, and to develop a finer-scale understanding of environmental temperatures across the region by deploying temperature data loggers at multiple sites throughout inland and coastal waterways.
Although sightings were opportunistically gathered and, thus, not corrected for effort, they reveal a consistent picture of manatee presence in the mid-Atlantic. In both states, sightings were most common from June to October when water temperatures were above 20 degrees C. Sightings in North Carolina were most common in the Intracoastal Waterway (27%), and in rivers and creeks (46%) in Virginia. Fine-scale temperature data collected throughout the region demonstrated highly variable, declining water temperatures in late fall, with temperatures dropping by as much as 1.35 degrees C/d. Manatee sightings decreased precipitously with water temperature in November, while strandings increased. The results of this study demonstrate that manatees are predictably found in North Carolina and Virginia throughout the late spring, summer, and fall. These data can be used to plan future education and outreach, monitoring, regulatory actions, and habitat protection measures for this endangered species in this region.
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Adimey, Nicole M.; Ross, Monica; Hall, Madison; Reid, James P.; Barlas, Margaret E.; Keith Diagne, Lucy W.; Bonde, Robert K.
(detail)
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2016 |
Twenty-six years of post-release monitoring of Florida manatees (Trichechus manatus latirostris): evaluation of a cooperative rehabilitation program.
Aquatic Mamms. 42(3): 376-391. 3 tabs. 5 figs. DOI 10.1578/AM.42.3.2016.376.
–ABSTRACT: The rescue, rehabilitation, and release of Florida manatees (Trichechus manatus latirostris) into the wild has occurred since 1974; however, a comprehensive evaluation of the outcomes of the releases has never been conducted. Herein, we examined data for 136 Florida manatees that were rehabilitated and released with telemetry tags between 1988 and 2013 to determine release outcome of each individual as either success (acclimation) or failure after at least 1 y. Ten predictor variables were statistically evaluated for potential relationships to release outcome. To assess the contribution of each predictor variable to release outcome, each variable was tested for significance in univariate analyses. Manatees born in captivity experienced poor success after release (14%), whereas the overall success of wild-born individuals was higher (72%). When compared with other variables in our dataset, number of days in captivity was the strongest predictor for determining success. Manatees rescued as calves and held in captivity for more than 5 y had a high likelihood of failure, while subadults and adults had a high likelihood of success, regardless of the amount of time spent in captivity. Ensuring the success of individual manatees after release is critical for evaluating the contribution of the manatee rehabilitation program to the growth of the wild population.
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Bibliography and Index of the Sirenia and Desmostylia 