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Interannual variation in the catch and mean length of penaeid shrimp in the lagoons and coastal waters of Sinaloa, NW Mexico, and their possible link with environmental factors

Authorsdel Valle, Ignacio; Martín, Paloma
Issue Date1995
PublisherInternational Council for the Exploration of the Sea
CitationIces Marine Science Symposia 199: 370-378 (1995)
AbstractA multiple linear regression model has been used to investigate the factors that may have contributed to the wide year-to-year fluctuations in the catches of penaeid shrimp species in the coastal and estuarine waters of Sinaloa, NW Mexico. Tem perature during the main reproductive period is shown to be the factor explaining the highest proportion of the interannual variability in the catch, 57% and 63% in the coastal and estuarine fisheries, respectively. O ther significant factors are the duration of the closed season, plus, in coastal waters, sunspot number, and in estuarine waters, river discharge, which has a negative effect. In the estuarine fishery, the estimated total number of shrimp in the catch is positively correlated with accumulated tem perature during the main reproductive period, but inversely correlated with the overall mean length of the domestic and trade size categories. The results suggest that environmen¬tal variables can be used to make catch predictions
Description9 pages, 6 figures, 1 table
Identifiersissn: 0906-060X
Appears in Collections:(ICM) Artículos
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