Fish harvesting and marketing

Growth is rapid in the warm climate of Bangladesh and the fish attain marketable size within 3-9 months, providing farmers with a rapid return on their investment and labour. Fingerling production culture cycle is between 1 and 2 months. Cage nursery producers can sell fingerlings to the pond farmers and ox-bow lake operators. Fish for food culture cycle is between 4 and 6 months. Fish food producers consume the cage fish as well as selling them in the market.Profitability depends on many factors including the type of water body and culture, cage construction materials, the choice of fish species, fingerling size and price, stocking density, feed price, availability of protein rich feed, culture duration, cage management, harvesting and marketing. Another concern relates to economies of scale. Almost all enterprises are subject to economies of scale, and cage culture is no exception. The labour of looking after one small cage is far greater per kilogram of product than that for looking after a large one. The cost of the cage per kilogram of production will also be higher for a small cage versus a large cage. However, co-operative use of labour can be used to realise economies of scale in relation to labour, and this is already done in many villages. The third concern, related to the second, is comparative advantage. A significant proportion of the fish is intended to be sold for cash rather than consumed by the farmer and his family.