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x Ortiz, Rudy M.; Worthy, Graham A. J.; MacKenzie, Duncan S.
  1998
Osmoregulation in wild and captive West Indian manatees (Trichechus manatus).
Physiol. Zool. 71(4): 449-457. 4 tabs. 2 figs. July/Aug. 1998.
–Experiments manipulating water salinity and animals' access to fresh water were conducted on captive and wild-caught T. m. latirostris and T. m. manatus in Florida, Brazil, Colombia, and Puerto Rico. High aldosterone levels in wild freshwater animals may indicate a need to conserve sodium or to have access to marine habitats; captinve animals in fresh water may be susceptible to salt deficiency. High vasopressin levels in wild brackish-water manatees suggest use of an antidiuretic state to conserve water. Concludes that manatees are good osmoregulators regardless of the environment.

Related Index Records


12 related index terms

Behavior, Ingestive
(SEE ALSO: Behavior, Epimeletic; Behavior, Et-epimeletic; Food; Mastication; Milk)
x  1998Ortiz et al. (TML, TMM; drinking fresh water from hoses; 450-452.)
Biochemistry
(SEE ALSO: Digestive System; Endocrinology; Milk; Phylogeny and Affinities)
x  1998Ortiz et al. (TML, TMM; osmoregulation; 449-457.)
Brazil
x  1998Ortiz et al. (TMM; in capt., Itamarac ; osmoregulation experiments; 450-451.)
Captivity, Sirenians in
(SEE ALSO: Hunting and Capture; Weed Control)
x  1998Ortiz et al. (TML, TMM; Florida, Brazil, Colombia, Puerto Rico; osmoregulation; 450-451.)
Colombia
x  1998Ortiz et al. (TMM; in capt.; osmoregulation experiments; 450.)
Endocrinology
x  1998Ortiz et al. (TML, TMM; osmoregulation; 449-457.)
Excretion and Defecation
(SEE ALSO: Salinity Tolerance; Urogenital System)
x  1998Ortiz et al. (TML, TMM; osmoregulation, 449-457; urination frequency decreased when out of salt water, 452, 456.)
Florida
x  1998Ortiz et al. (TML; in capt.; osmoregulation experiments; 450.)
Puerto Rico
x  1998Ortiz et al. (TMM; in capt.; osmoregulation experiments; 450.)
Salinity Tolerance
(SEE ALSO: Behavior, Ingestive)
x *1998Ortiz et al. (TML, TMM; osmoregulation; 449-457.)
Trichechus manatus latirostris (Harlan, 1824) Hatt, 1934
x  1998Ortiz et al. (osmoregulation; 449-457.)
Trichechus manatus manatus Linnaeus, 1758, Hatt, 1934
x  1998Ortiz et al. (osmoregulation; 449-457.)