Sex ratio of immature Kemp's ridley turtles (Lepidochelys kempi) from Gullivan Bay, Ten Thousand Islands, south-west Florida

Autor:	Alyssa A. Geis, Wayne N. Witzell, Jeffrey R. Schmid, Thane Wibbels
Rok vydání:	2005
Předmět:	biology Temperature-dependent sex determination Female dominance Endangered species Zoology Aquatic Science biology.organism_classification Fecundity Lepidochelys kempi law.invention Oceanography law Turtle (robot) Bay Sex ratio
Zdroj:	Journal of the Marine Biological Association of the United Kingdom. 85:205-208
ISSN:	1469-7769 0025-3154
DOI:	10.1017/s0025315405011070h
Popis:	The sex ratio of 100 immature Kemp's ridley turtles (Lepidochelys kempi) captured in Gullivan Bay, Ten Thousand Islands, south-west Florida was determined through radioimmunoassay analysis (RIA) of plasma testosterone levels. We determined the sex ratio to be 1·9F:1·0M, corroborating the female dominance reported from other studies. The mean sizes of female (N=57) and male turtles (N=30) were 40·9 cm (±6·9 SD) and 41·9 cm (±6·2 SD), respectively. There were an additional 13 turtles (41·3 cm±6·5 SD) for which sex could not be determined by this technique. Female-biased sex ratios are not uncommon in reptiles with temperature dependent sex determination. If fecundity is not male-limited, the occurrence of a female-biased sex ratio could enhance the recovery of the endangered Kemp's ridley turtle.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f29c1ad923a12ffc6f4d0b972a1dfd53 https://doi.org/10.1017/s0025315405011070h Zobrazit plný text záznamu