Profiling plasma steroid hormones: A non-lethal approach for the study of skate reproductive biology and its potential use in conservation management

James A. Sulikowski, William B. Driggers, G. Walter Ingram, Jeff Kneebone, Darren E. Ferguson, Paul C.W. Tsang

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Information regarding sexual maturity and reproductive cycles in skates has largely been based on gross morphological changes within the reproductive tract. While this information has proved valuable in obtaining life history information, it also necessitates sacrificing the skates to obtain this data. In contrast, few studies have used circulating steroid hormones to establish when these batoids become reproductively capable or for the determination of reproductive cyclicity. This study summarizes our current knowledge of hormonal analyses in determining skate reproductive status and offers information that suggests analysis of circulating steroid hormone concentrations provide a means to determine size at sexual maturity and asses reproductive cycles without the need to sacrifice the skate.

Original languageEnglish (US)
Pages (from-to)285-292
Number of pages8
JournalEnvironmental Biology of Fishes
Volume80
Issue number2-3
DOIs
StatePublished - Oct 2007
Externally publishedYes

Keywords

  • Estradiol
  • Non-lethal technique
  • Reproduction
  • Sexual maturity
  • Skate
  • Testosterone

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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