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 |
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Creator |
Pillai,S Lakshmi
Kizhakudan,Joe K Thirumilu,P |
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Subject |
Fiddler shrimp
Metapenaeopsis stridulans maturity growth parameters mortality exploitation rate |
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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 |
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Date |
2021-09-16T06:44:21Z
2021-09-16T06:44:21Z 2012 |
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Type |
Article
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/62936 |
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Language |
English
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Relation |
Not Available
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