Observation on the damage of shell and fie-fish larvae during collection of shrimp fry (Penaeus monodon) in the estuaries of Bhola district, Bangladesh
1999
Islam, M.S. | Islam, M.M. | Ahmed, S.U. (Bangladesh Fisheries Inst., Khulna (Bangladesh). Brackish Water Station)
The study was carried out in the Meghna river-estuaries of Bhola district from January, 1996 to December, 1997 with a view of quantity the extent of damage of shell and fin-fish larvae during collection of P. monodon larvae as target species. Study revealed that during collection of each Penaeus monodon (Fab.) post larva (PL), about 26 and 17 larvae of other shrimp, 16 and 7 fin- fishes and 90 and 39 macrozooplankters, respectively were ruthlessly destroyed during the consequent years. During the study period, about 1.10 and 0.89 million man days/year, respectively were found to involve in shrimp fry collection. It was also recorded that about 11 .0 and 8.2 million of P. monodon PLs respectively were harvested in 1996 and 1997 from the study area. The study indicates that indiscriminate killing of shell and fin-fishes and other valuable aquatic organisms during collection of P. monodon PL by shrimp seed collectors is causing threat to aquatic biodiversity conservation and ecology of coastal waters.
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