Stock assessment of Indian scad, Decapterus russelli (Ruppell, 1830) off Malabar

Manojkumar, P P (2007) Stock assessment of Indian scad, Decapterus russelli (Ruppell, 1830) off Malabar. Journal of the Marine Biological Association of India, 49 (1). pp. 79-80.

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Abstract

Stock assessment of Indian scad, Decapterus russelli (Ruppell, 1830) off Malabar was carried out. The Lα and K values were 271.2 mm and 1.22 y-1 respectively. The length-weight relationship can be described by the equation Log W = -3.2706 +2.6317 Log L. The estimated mortality rates Z, F and M in the species were 3.79 y-1, 1.71 y-1 and 2.08 y-1 respectively. Recruitment of this species was continuous with two peaks per year. The length at first capture and length at recruitment were taken as 145 mm and 55 mm respectively. The current exploitation ratio (0.49) is below the optimum (0.69) indicating that the resource is under-exploited.

Item Type:Article
Uncontrolled Keywords:Stock assessment; Indian scad; Decapterus russelli; Malabar Coast; management brief
Subjects:Pelagic Fisheries > Mackerel fishery
Divisions:CMFRI-Cochin > Marine Capture > Fishery Resource Assessment
ID Code:2117
Deposited By:Dr. V Mohan
Deposited On:09 Aug 2010 16:13
Last Modified:09 Aug 2010 16:13

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