Year of publication 1985

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Place of publication Rome, Italy ;

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Product type Project

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Series title CECAF/ECAF Series

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Series number 1014-9228

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Edition 1

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Synopsis (short abstract) Assessments, using General Production models, were attempted for each statistical division. For divisio 34.1.1 it appears that there has been a moderate reduction in both catch and effort since 1979 and 1981 when both catch and effort were at a maximum. One implication of this result is that catches could be increased by allowing effort to increase to the level estimated for 1979 and 1981. However, it was felt that this assessment should be interpreted with caution and that no further increase s in effort should be permitted until a better assessment could be done. For the division 34.1.2, no assessements were attempted due to inconsis tencies in the data and the possibility that some catches reported as having come from division 34.1.2 may habe come from other divisions. For divisions 34.1.3 and 34.3.1 there are many different fleets and types of boat which catches per unit effort can be calculated to provide indices of abundances. For each division, it was found that the various sets of catches per unit effort gave inconsistent pictures of the changes in abundance. This was believed to be due to shortcomings in the statisti cal data (see section 2.2). Because of this it was felt that assessments for these divisions as a whole. Within division 34.1.3 ther is a separate fishery by Canarian artisanal fishermen who fish for sparids as target species on untrawlable grounds. For this one fishery, it was concluded tha further increases in fishing effort could be associated with further increases in yield.

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Statutory body / Meeting title Fishery Committee for the Eastern Central Atlantic (CECAF)

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Language English

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