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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. -
DocumentPresent Status of Trawl Fisheries Resources in The Gulf of Thailand and the Management Program 1970
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Book (stand-alone)GFCM - Report of the Fourth Technical Consultation of the General Fisheries Council for the Mediterranean on Stock Assessment in the Balearic and Gulf of Lions Statistical Divisions. Sidi-Fredj, Algeria, 16-21 November 1985. 231p. 259871-881-Bi. / CGPM - Rapport de la quatrième Consultation technique du Conseil général des pêches pour la Méditerranée sur l'évaluation des stocks dans les divisions statistiques Baléares et golfe du Lion. Sidi-Fredj, Algérie, 16-21 novembre 1985. 1986
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No results found.The meeting reviewed the progress achieved since 1983 1.n the various fields of research recommended by the previous consultation and, in particular, in demersal and pelagic stocks assessment. It also considered the! problem of small scale fisheries assessment and proposed research directives for the intersessional period. A Workshop on simple analytic methods for stock assessment was held in conjunction with the Consultation. It was proposed to orgauize the next consultation in Fuengirola (Mala ga), Spain, in 1987.
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