Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/4224
Title:  Growth and mortality of Indian squid, Loligo duvauceli (d’Orbigny) (Mollusca/Cephalopoda/Teuthoidea) from Mumbai waters, India
Authors: Karnik, Nirmala S.
Chakraborty, S. K.
Jaiswar, A.K.
Swamy, R.P.
Rajaprasad, R.
Boomireddy, S.
Rizvi, A. F.
Keywords: Asymptotic length;growth;mortality;Indian squid
Issue Date: Mar-2003
Publisher: CSIR
Abstract: The growth, mortality and exploitation ratio of Loligo duvauceli estimated by employing FiSAT Programme are reported. The asymptotic length (L ∞) and growth coefficient (K) were estimated as 385 mm and 0.85 y –1 respectively. The total, natural and fishing mortality co-efficients were calculated as 4.29, 1.82 and 2.47 per year respectively. The present exploitation ratio is around 0.57. Relative yield per recruit analysis shows that the Emax is 0.49. Yield isopleth diagram reveals that yield per recruit can be maximized at the exploitation ratio of 0.5 and Lc/L ∞ values of 0.4. Reduction in fishing effort is required to maximize the yield per recruit of Loligo duvauceli in Mumbai waters. Increase in cod end mesh size of trawls and reduction in the present level of effort are suggested to sustain the fishery of Loligo duvauceli in Mumbai waters.
Page(s): 67-70
URI: http://hdl.handle.net/123456789/4224
ISSN: 0379-5136
Appears in Collections:IJMS Vol.32(1) [March 2003]

Files in This Item:
File Description SizeFormat 
IJMS 32(1) 67-70.pdf228.78 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.