Fish production in Sudan
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The paper presents the existing Statistical Systems for the collection and estimation of fishery data covering both the fresh waters and marine waters in Sudan. The patterns of production in the Nile and El Nuba Lake, the Blue Nile, and White Nile in the northern region, and in the marine waters have been examined with respect to their distribution over months and species composition of the catches for the years 1980 and 1979. The associated fishing efforts in terms of boat - days and fisherman - days, have been estimated in some cases. The mode of disposition of catches has also been studied. The total fish productions in Sudan during 1980 and 1979 were estimated at 26.283 tons and 28.628 tons respectively. Out of the total the productions from the fresh waters constitute 96-97%, the rest being accounted for by the productions from the marine sector.