Equivalent whole-body concentrations of 11-ketotestosterone in female and male coral goby (Gobiodon erythrospilus), a bi-directional sex-changing fish

Kroon, F.J., Munday, P.L., and Westcott, D.A. (2009) Equivalent whole-body concentrations of 11-ketotestosterone in female and male coral goby (Gobiodon erythrospilus), a bi-directional sex-changing fish. Journal of Fish Biology, 75 (3). pp. 685-692.

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Abstract

The relationship between whole-body concentrations of 11-ketotestosterone (11-KT) and sexual function was examined in the coral goby Gobiodon erythrospilus, a bi-directional sex-changing fish. 11-KT occurred in both female and male G. erythrospilus, but levels were not always higher in males than in females within heterosexual pairs, and were not related to the stage of gonadal development of individual fish. These results suggest that comparable 11-KT levels in both sexes may allow serial adult sex change to take place in bi-directional sex-changing species, such as Gobiodon spp.

Item ID: 5172
Item Type: Article (Research - C1)
ISSN: 1095-8649
Keywords: bi-directional sex-change; goby (Gobiodon erythrospilus); physiology; Gobiidae; gonadal structure; 11-ketotestosterone
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Date Deposited: 07 Sep 2009 00:21
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060203 Ecological Physiology @ 40%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 60%
SEO Codes: 96 ENVIRONMENT > 9603 Climate and Climate Change > 960310 Global Effects of Climate Change and Variability (excl. Australia, New Zealand, Antarctica and the South Pacific) @ 100%
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