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DocumentThird report of mesh selection studies conducted in the People's Democratic Republic of Yemen on the cuttlefish Sepia pharaonis 1983
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No results found.The results of a third cod-end mesh selection trial involving the alternate haul method are described. All cod-ends were made from single braided polyetheylene, and the mesh sizes used were 7.0 cm, 10.3 cm, 12.4 cm, 14.1 cm, 15.2 cm, and 16.9 cm; the smallest size being taken as the standard against which the others were compared. The relationship between the 50% selection lengths and mesh sizes, was found not to be different from those of the earlier two trials; combining the results from all t rials gave: 50% selection length (cm) = 2.15 x mesh size (cm) - 9.34; whose correlation coefficient is highly significant (at P<0.05). -
DocumentRevised stock assessment for the cuttlefish Sepia pharaonis taken off the coast of the People's Democratic Republic of Yemen 1981
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No results found.This paper describes a revised stock assessment for the cuttlefish Sepia pharaonis inhabiting waters off the People's Democratic Republic of Yemen. It differs from earlier assessments in that the male and female cuttlefish are considered separately. -
DocumentPreliminary stock assessment for the cuttlefish Sepia pharaonis taken off the coast of the People's Democratic Republic of Yemen 1979
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No results found.This paper describes a preliminary stock assessment for the cuttlefish Sepia pharaonis inhabiting waters off the People’s Democratic Republic of Yemen. It is principally based on the catch and effort records for the commercial fleet.
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