Linking Use of Ship Channels by West Indian Manatees (Trichechus manatus) to Seasonal Migration and Habitat Use
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چکیده
منابع مشابه
Distribution and habitat use by manatees (Trichechus manatus manatus) in Belize and Chetumal Bay, Mexico
The nearshore coastal areas of Belize and of Chetumal Bay, Mexico, support one of the largest populations of manatees (Trichechus manatus manatus) in the Caribbean. In order to further document the distribution, relative abundance, habitat associations, and status of this population, we conducted three aerial surveys. The ̄ights were done in January 1994, May 1994, and January 1995. Total manat...
متن کاملDigestive efficiencies of ex situ and in situ West Indian manatees (Trichechus manatus latirostris).
Digestive efficiencies (Dm) of ex situ and in situ manatees (Trichechus manatus latirostris) were, for the first time, assessed using manganese (Mn(2+)) as a naturally occurring marker. The Dm of ex situ manatees determined using [Mn(2+)] did not differ significantly from the Dm assessed using lignin, supporting the efficacy of the manganese approach. Gastrointestinal tract samples, obtained fr...
متن کاملThyroid hormone concentrations in captive and free-ranging West Indian manatees (Trichechus manatus).
Because thyroid hormones play a critical role in the regulation of metabolism, the low metabolic rates reported for manatees suggest that thyroid hormone concentrations in these animals may also be reduced. However, thyroid hormone concentrations have yet to be examined in manatees. The effects of captivity, diet and water salinity on plasma total triiodothyronine (tT(3)), total thyroxine (tT(4...
متن کاملNephrolithiasis and pyelonephritis in two West Indian manatees (Trichechus manatus spp.).
Two West Indian manatees (Trichechus manatus spp.) were reported with severe emaciation. One animal was a Florida manatee from the Everglades; the other was an Antillean manatee from Cuba. On necropsy, both animals had nephrolithiasis, pyelonephritis, and moderate to severe renomegaly. Histopathology revealed multifocal to diffuse pyelonephritis, interstitial nephritis, and nephrocalcinosis. Th...
متن کاملBlood Chemistry of Antillean Manatees (Trichechus manatus manatus): Age Variations
The Antillean manatee (Trichechus manatus manatus) is the most endangered aquatic mammal in Brazil. Sampling blood data from such critically endangered marine mammal species is extremely challenging. Although several hematological studies have been developed for captive manatees, captivity studies addressing the environmental and physiological effects on blood values are scarce. The present wor...
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ژورنال
عنوان ژورنال: Frontiers in Marine Science
سال: 2019
ISSN: 2296-7745
DOI: 10.3389/fmars.2019.00318