Journal of Environmental Biology
pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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Abstract - Issue Jul 2008, 29 (4) Back
Population biology and
feeding habits of the nephropid lobster
Jung Hwa Choi*1, Jung Nyun Kim1, Mi Hyang Kim2, Dae Soo Chang1, Joon Taek Yoo3 and Jin Koo Kim1
1Fisheries Resources Research
Team, National Fisheries Research and Development Institute, Busan 619-705, Korea
(Received: February 22, 2007; Revised received: December 19, 2007;? Accepted: December 26, 2007)
Abstract: Population biology and feeding habits of the nephropid lobster Metanephrops thomsoni (Bate) was studied from a field survey sampled with bottom trawls in the East China Sea. The female/male ratio was 1.06:1. Three size-class groups were discriminated for both sexes, which may correspond to one to three year-old cohorts. The average stage fecundity was 471 in each brood. Larger than two-year-size-class females are multi broods during the breeding season. Gut analysis showed that this lobster is a common carnivore and mainly consume crustaceans and fishes, regardless of sex and carapace length size.
Key words: Metanephrops thomsoni, Population biology, Feeding habitats, East China Sea
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