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Osmoregulation of Crocodiles in Everglades National Park: Report T-599.

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Date Issued:
1980-06
Summary:
The author explores the relationship between osmoregulatory problems caused by high salinities near nest sites and the low survival rate of hatchling crocodiles (Crocodylus acutus) in Florida Bay (Everglades National Park, FL). The Na levels of crocodile cloacal fluid was examined, as well as blood plasma. The author also examined the dermal Na permeability. Raw data is presented in tables at the end of the report.
Title: Osmoregulation of Crocodiles in Everglades National Park: Report T-599.
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Name(s): Dunson, William A.
South Florida Research Center
PALMM (Project)
Type of Resource: text
Genre: Technical Report
Issuance: monographic
Date Issued: 1980-06
Publisher: United States Department of the Interior, National Park Service, South Florida Research Center, Everglades National Park
Place of Publication: Homestead, Fla.
Physical Form: electronic resource
Extent: 29 pages; 28 cm.
Language(s): English
Summary: The author explores the relationship between osmoregulatory problems caused by high salinities near nest sites and the low survival rate of hatchling crocodiles (Crocodylus acutus) in Florida Bay (Everglades National Park, FL). The Na levels of crocodile cloacal fluid was examined, as well as blood plasma. The author also examined the dermal Na permeability. Raw data is presented in tables at the end of the report.
Summary: The physiological effects of high salinity on young crocodiles, Crocodylus acutus, was examined in Florida Bay (Everglades National Park) using measurements of electrolyte composition of plasma and cloacal fluid and of possible hatchling food. No final answer can be given to the hypothesis that a major portion of crocodile mortality in Florida Bay is associated with osmoregulatory problems caused by high salinities. Small C. acutus show few physiological specializations for life in saline waters although results indicate that the vicinity of many nest sites are saline enough that difficulties could be encountered in water and salt balance. The author suggests additional studies are needed to establish their mortality under the most stringent salinity.
Identifier: 59669570 (oclc), FI01899599 (IID), 994941 (digitool), SER-91: (Southeast Regional Office, National Park Service) (stock number), NRBIB:EVER-6170 (NPS Natural Resources Bibliography Number) (stock number), fiu:1485 (fedora), AAA7185QF
Note(s): [by] William A. Dunson.
Bibliography included, pages 17-18.
Electronic reproduction. [Florida] : State University System of Florida, PALMM Project, 2005. (Everglades online collection) Mode of access: World Wide Web. System requirements: Internet connectivity; Web browser software; Adobe Acrobat Reader to view and print PDF files. Electronically reproduced by Florida International University from a technical report held in the Green Library at Florida International University, Miami.
Contract no. CX5280-8-2806
Final report.
Subject(s): Crocodiles -- Florida -- Everglades National Park
Osmoregulation
Everglades -- 3090202
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI01899599.pdf
Persistent Link to This Record: http://purl.flvc.org/fcla/tc/feol/FI01899599.jpg
Use and Reproduction: http://rightsstatements.org/vocab/NoC-US/1.0/
Host Institution: FIU
Has Part:
(OCoLC)06835494
Is Part of Series: Report (South Florida Research Center) ; T-599.
Is Part of Series: Everglades online collection.