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DocumentStock assessment for the round herring (Etrumeus teres) caught by purse seine in the Gulf of Suez 1984
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No results found.This report describes an assessment of the round herring stock based on catch sampling undertaken during the seasons of 1979/80, 1980/81 and 1981/82. Spawning was shown to occur from January through May in each year; and first sexual maturity to occur several months prior to age 2 years. The recruitment of young fish was concluded as taking place between seasons. Yield per recruit estimations indicated that increases above the contemporary levels of fishing effort would be associated with reduce d annual catches; while substantial reductions in fishing effort would be associated with only small consequential decreases in catch. Reductions in the duration of the fishing season while maintaining the fishing efforts constant, were shown likely to be associated with increased catches -
DocumentStock assessment for the horse mackerel, Trachurus indicus, caught by purse seine and trawl in the Gulf of Suez 1984
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No results found.This report describes an assessment of the horse mackerel stock based on catch sampling undertaken during the three seasons from 1979/80 (incl.). Spawning is shown to occur from January through May in each year; and first sexual maturity to occur during the year prior to age 3 years. The recruitment of young fish is concluded as taking place between seasons. Yield per recruit analyses indicate that increases above the contemporary levels of fishing effort would be associated with negligible addi tional catch, and possibly reduced catches; while substantial reductions in fishing effort would be associated with only small consequential decreases in catch. Reduction in the duration of the fishing season, while maintaining fishing efforts constant, are shown likely to be associated with little change in catch. -
DocumentCatches, fishing efforts, catches per fishing effort, and fishing locations for the Gulf of Suez and Egyptian Red Sea coast purse seine fishery during 1979 to 1982 1984
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No results found.This report presents a collation of data describing the monthly catch weights by important species groups, the associated fishing efforts and catch weights per unit effort, and the fishing locations, for a period of three years from 1979 to 1982. Data collection involved catch enumeration at the landing sites by employees of the Department of Agriculture, and the interviewing of skippers for details of fishing efforts and fishing locations by Project personnel and counterparts.
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