?POPULATION DYNAMICS AND THE MANAGEMENT OF THE HARDTAIL SCAD MEGALASPIS CORDYLA FROM THE BAY OF BENGAL
Keywords:
Megalaspis cordyla, Population dynamics, Bay of Bengal.Abstract
FiSAT program was used to estimate population parameters of Megalaspis cordyla from length frequency data. Leeand
K were found to be 38.5 cm and 0.54 year', respectively. The Wetherall plot provided an estimate of Lee and Z/K as
38.12 cm and 3.902, respectively. The annual rates of natural and fishing mortality were estimated as 1.17 and 1.11,
respectively. The exploitation rate was 0.51. The selection pattern Lso was 22.32 cm. Recruitment pattern suggests of
one main pulse in May-August. Maximum yield could be achieved simultaneously decreasing length at first capture to
18.0 em. The relationship between total length and body weight was found to be W = 0.01794 Ll.KlK<. Highest yield and
price could be achieved by increasing the fishing mortality to 1.25 coefficient rate.
