Reproductive biology of some common coral reef fishes of the Indian EEZ

Vijay Anand, P E and Pillai, N G K (2002) Reproductive biology of some common coral reef fishes of the Indian EEZ. Journal of the Marine Biological Association of India, 44 (1 & 2). pp. 122-135.

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    Abstract

    The reproductive biology of some common coral reef fishes from the Lakshadweep ( 8" to 12"N and 71" 45' to 73"45'E) and the Gulf of Mannar (8"48' to 9"14'N and 799' to 79O14'E) in the Indian EEZ during January 1991 to June 1992 is reported. Protogyny was prominent in labrids, while other species either matured synchronously or differentially, with males maturing earlier or later than females. Sex-ratio indicated that females were dominant in most species. Fecundity estimates varied greatly, from 700 to 2,25,850 ova per female. Whenever the environment is favourable the coral reef fish spawn on a daily, weekly, fortnightly and monthly basis. Total fecundity per year, therefore, is presumably very high. Most species appeared to be perennial spawners, some showed small breaks, while very few indicated biannual spawning. Continuous occurrence of juveniles in different size ranges confirmed the continuous spawning habits. Spawning activity was minimum during monsoon seasons, evidently an adaptation to tide over adverse environmental conditions prevailing at that time lest the eggs and larvae are transported far and wide. This was corroborated by peak settlement during pre-monsoon and post-monsoon seasons.

    Item Type: Article
    Uncontrolled Keywords: Reproductive biology; Coral reef fishes; Indian EEZ
    Subjects: Fishery biology
    Oceanography > Indian EEZ
    Marine Ecosystems > Coral Reefs
    Divisions: CMFRI-Kochi > Marine Capture > Demersal Fisheries
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Marine Capture > Demersal Fisheries
    CMFRI-Kochi > Marine Capture > Demersal Fisheries

    CMFRI-Kochi > Mariculture
    Subject Area > CMFRI Brochures > CMFRI-Kochi > Mariculture
    CMFRI-Kochi > Mariculture
    Depositing User: Users 5 not found.
    Date Deposited: 10 Aug 2010 10:42
    Last Modified: 09 Sep 2015 15:14
    URI: http://eprints.cmfri.org.in/id/eprint/1990

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