Reproductive biology of bisexual and all-female populations of chaetodontid fishes from the southern Great Barrier Reef
Identifieur interne : 000784 ( Main/Exploration ); précédent : 000783; suivant : 000785Reproductive biology of bisexual and all-female populations of chaetodontid fishes from the southern Great Barrier Reef
Auteurs : J. Fowler [Australie]Source :
- Environmental Biology of Fishes [ 0378-1909 ] ; 1991-07-01.
Abstract
Synopsis: The reproductive biology of three species of chaetodonts from One Tree Reef (southern GBR) is described by analysis of gonads and population structure. Reproductive biology is related to age by a capture-markrecapture study of growth. For Chaetodon rainfordi there was a significant habitat effect. On the reef slope, females outnumbered males by 5.6: 1 and both sexes became reproductively active by the age of 2 years. In the lagoon, no males were found and females were reproductively inactive. For C. plebius, males were essentially missing from all samples and no reproductively active females were found. For Chelmon rostratus (1 :1 sex ratio) some males had mature testes but there was no evidence of female reproductive activity. This species is likely to be gonochoristic, but the reproductive mode of the other two species remains ambiguous.
Url:
DOI: 10.1007/BF00000691
Affiliations:
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