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Thesis Issued 2026-09-09 EN

The Fresh-Water Fish and Fisheries of Pakistan with Special Reference to Fish Culture for Food

Author: Shamsud Doha

Abstract

The nature and present condition of the fresh-water fish and fisheries of Pakistan with special reference tb fish Culture for f ood have been investigated. The t imeli— ness and importance of such a Study cannot be exaggerated in view of the fact that fresh-water fishes supply nearly 40% Of the necessary animal protein to balance the rice— vegetable diet of the Pakistanis. The fishery resources of Pakistan have not yet been properly assessed. The fresh—water f i sheries constitute nearly 70% of all f i Sheri es of Pakistan. Over 300,000 ponds, four large and numerous small rivers and streams, lakes, Swamps and rice fields Support the fresh-water fisheries•. The productivity Of these waters are believed to be quite high, but the traditional pract ices Of fish culture and fish ing in these waters have not significantly increased the catch. The pond cultural practices ("teichwirtschafttt) in Pakistan (East Pakistan, in particular) are quite extensive. As the indigenous carps Spawn in rivers and not in culture ponds, the Pakistani fish farmer must depend on the timely supply of the stocking material. Difficulties in the trans— port of fish fry to the numerous stocking ponds situated far away from the spawning grounds 1 inlit, to a great extent, the maximum utilization of ponds for fish cultyre. Ponds are not constructed in Pakistan on a scientific basis. A domestic pond which is excavated for the supply of necessary earth for house building is used for a variety of it supplies drinking water, it is used for bathing purposes: as well as washing, it is also Stocked with fish, mainly carps—-katla (Cat Ia cat 1 a), rohu (Labeo rohita), mrigal (Cirrhina mrigal a) and kalbaus (Labeo calbasu) . / Ponds are never limed or fertilized with standard inorganic fertilizers. Carps and other food fishes which are fattened or raised in ponds depend on the natural food supply of the ponds. Arti- ficial feeding of carps is rarely practiced in Pakistan. From the physico—chemical and biological points of view, Pakistan's fisheries in fresh-water rivers, lakes, swamps and rice f ields are not well managed. Limnological studies of •these fish—bearing waters have not yet been under- taken in Pakistan. Frequently, destructive fishing practices are employed for lack of effective conservation measures. The craft and gear are also outmoded. and are not efficient in catching operation. These problems ha•ve been studied in detail and practical measures for their solution have been suggested . In addition to the problems of fish culture and fish- ing, poor means of preservation, storage, transport and mar— keting have further hindered a greater consumption of the fresh-water food fishes in Pakistan- Chilling and freezing of fish are not practiced in any significant amount due to the high cost involved. Cur ing (drying, for one) is .the usual process of f iSh preservation in Pakistan. The public health aspects of the curing process are not adequately stressed. Transport and marketing of fish and fishery prod— ucts are yet to be organized in Pakistan. The socio—economic conditions of problems also measures have the f i shermen need great improvement These have been studied' in some detail and practical been Suggested to solve them