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Fishery and dynamics of the fiddler shrimp, Metapenaeopsis stridulans (Alcock, 1905) from Chennai coast

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Title Fishery and dynamics of the fiddler
shrimp, Metapenaeopsis stridulans
(Alcock, 1905) from Chennai coast
Not Available
 
Creator Pillai,S Lakshmi
Kizhakudan,Joe K
Thirumilu,P
 
Subject Fiddler shrimp
Metapenaeopsis stridulans
maturity
growth parameters
mortality
exploitation rate
 
Description Not Available
Annually 161 t of Metapenaeopsis stridulans was landed on an
average in the Kasimedu fishing harbour (Chennai) during the
period 2003-2007. The peak season of fishery was June-
September and the overall sex ratio was 1:1.2. Females were
slightly larger than males, the mean size was 79.8 mm against
73.8 mm for males. The length range for females was 41-125
mm and for males 41-115 mm. L∞ was estimated at 125 mm
for females and 114 mm for males; the growth constant K was
1.1 yr-1 for females and 1.3 yr-1 for males. The mortality rates
were: Z = 3.80, M = 1.20 and F = 2.60 for females and Z =
3.73, M = 1.52 and F = 2.21 for males. The length at first
capture (L50) was 63.82 mm for the species. Beverton and Holt’s
relative yield-per-recruit (Y’/R) analysis revealed that the current
exploitation rate is higher than the optimum exploitation rate
(E 0.5), hence fishing mortality should be reduced by about 45%
to sustain the stock.
Not Available
 
Date 2021-09-16T06:44:21Z
2021-09-16T06:44:21Z
2012
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62936
 
Language English
 
Relation Not Available