Fish ears are sensitive to sex change

Walker, Stefan P.W., and McCormick, Mark I. (2009) Fish ears are sensitive to sex change. Biology Letters, 5. pp. 73-76.

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Many reef fishes change sex during their life. The testing of life-history theory and effective fisheries management therefore relies on our ability to detect when this fundamental transition occurs. This study experimentally illustrates the potential to glean such information fromthe otolithic bodies of the inner-ear apparatus in the sex-changing fish Parapercis cylindrica. It will now be possible to reconstruct the complete, often complex life history of hermaphroditic individuals from hatching through to terminal reproductive status. The validation of sex-change associated otolith growth also illustrates the potential for sex-specific sensory displacement. It is possible that sex-changing fishes alter otolith composition, and thus sensoryrange specificity, to optimize life history in accordance with their new reproductive mode.

Item ID: 4848
Item Type: Article (Research - C1)
ISSN: 1744-957X
Keywords: reef fish; sex change; otolith; hermaphroditism; life-history transition; marine biology
Date Deposited: 05 Aug 2009 23:37
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 50%
06 BIOLOGICAL SCIENCES > 0608 Zoology > 060899 Zoology not elsewhere classified @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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