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- W26327797 abstract "Nemipterus delagoae is the dominant threadfin-bream landed at Tuticorin. An estimated 158.15 t and 226.9 t werelanded by trawl net at the catch rate of 6.31 and 10.13 kg/unit in 1987 and 1988 respectively constituting onan average 3.6% of the total catch by trawl net. The peak period of fishing season is during September - December.The estimated growth parameters from length frequency data are Loo = 362.0 mm, K = 1.0586 (annual) andtj = -0.0087 yr. The sexwise length-weight relationship did not exhibit any significant difference and hence acommon length-weight relationship is proposed. Fishes (25.6%), prawns (21.9%), crabs (14.3%) formed the dominantfood items of this species in addition to brittle-stars, cuttlefishes, gastropods, bivalves, Squilla, polychaetes, alphids,isopods and amphipods. The natural mortality coefficient (M) is 1.625 and the average annual total mortalitycoefficient (Z) is 3.29 by trawl net. The yield per recruit studies indicate that the prevailing F i.e. 1.665 by trawlnet which is well below the V^^^ which can produce the highest yield ( Y^^^) for the prevailing age at first capture0.4687 yr for the M/K ratio 1.535. This indicate that the fishery of N. delagoae is not exposed to higher fishingpressure and there is scope for further increase in the fishing effort of trawl net." @default.
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- W26327797 date "1994-01-01" @default.
- W26327797 modified "2023-09-27" @default.
- W26327797 title "THE FISHERY, BIOLOGY AND STOCK ASSESSMENT OF NEMIPTERUS DELAGOAE SMITH OFF TUTICORIN, GULF OF MANNAR" @default.
- W26327797 hasPublicationYear "1994" @default.
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