Gear-specific catches in culture based fisheries in Oxbow Lakes [Bangladesh]
1999
Hasan, M.R. | Bala, N. | Hossain, M.I. (Bangladesh Agricultural Univ., Mymensingh 2202 (Bangladesh). Dept. of Aquaculture)
A study was carried out in two Oxbow Lakes under the Oxbow Lakes Smal Scale Fishermen Project, Second Phase, to compare gear selectivity of purse seine (Rochal) and brush park (Komar) for species number and size by analyzing the catch frequencies of various size classes of the six carp species stocked. Length-frequency data collected from Nasti and Porapara Lakes for both types of gear over the same period indicated significant differences in average size harvested for silver carp, catla, rohu, mrigal and common carp between purse seine and brush park. Only grass carp did not exhibit a size difference. In general, fish of all these species caught in the brush park were 40-70% heavier than the catches from the purse seine. Occurence (all length classes combined) of silver carp (a surface feeder) was higher in purse seine catches, whereas for common carp (a bottom feeder) it was higher in brush park catches
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