Brush Shelter: a recently introduced fishing method in the Kaptai Reservoir fisheries in Bangladesh
1999
Ahmed, K.K. | Hambrey, J.B. (Bangladesh Fisheries Research Inst. Riverine sub-station, P.O. Box 8, Rangamati-4500 (Bangladesh))
Since the early 1990s, the brush shelter fish aggregation device (FAD), an unusual fishing method used in Bangladesh, has become popular with the fishers of Kaptai Lake. A shelter commonly covers an area between 0.02 and 0.12 ha and is usually installed along the edge of a channel (arm of lake) with a reasonable water depth. Brushes are square/rectangular/round surrounded with bamboo or wooden frames constructed with tree branches. To attract fish, water hyacinth is placed over the surface. The difference between this fishing practice and similar ones used elsewhere in Bangladesh is that it makes use of locally available feed ingredients (rice bran, wheat bran, mustard oil cake, fermented rice, etc.). Spices and fish scents are also used two to three days prior to harvest. It is estimated that about 1000 brush shelters are in operation around the reservoir and are fished twice a year. The quantity of fish caught in each brush varies directly with the size and location of the brush and feed quality. A total of 483 t of fish of different species is harvested annually, accounting for about 8 percent of the total catch from the reservoir. Unplanned and unregulated use of this type of fishing poses a serious threat both to the natural stocks and to the effectiveness of stock enhancement as mostly small fish are harvested
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