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Title: Preliminary study on growth and mortality of Escualosa thoracata (Valenciennes, 1847) from Mumbai waters
Authors: Rahangdale, Shikha
Chakraborty, Susant Kumar
Jaiswar, Ashok Kumar
Shenoy, Latha
Raje, Sadashiv Gopal
Keywords: E. thoracata;Growth parameters;Asymptotic length;Mumbai;Growth coefficients
Issue Date: Feb-2016
Publisher: NISCAIR-CSIR, India
Abstract: Investigation on growth and mortality of Escualosa thoracata reported in the present literature is based on the length frequency data collected from April 2013 to March 2014. Asymptotic length (L∞), growth coefficient (K) and t0 were estimated as 119.6 mm, 1.85 year-1 and -0.000095 year respectively. VBGF plot indicated that the fish reaches 72.17 and 100.79 mm at the end of 6 and 12 months respectively. The phi- prime value was obtained as 2.423. Total, natural and fishing mortality coefficient was estimated as 7.809 year-1, 3.45 year-1 and 4.35 year-1 respectively. The exploitation rate (U) and exploitation ratio (E) were estimated as 0.556 and 0.557 yearr-1 respectively.
Page(s): 290-295
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.45(02) [February 2016]

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