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Título: | Environmental variability in the North Atlantic and Iberian waters and its influence on horse mackerel (Trachurus trachurus) and albacore (Thunnus alalunga) dynamics |
Autor: | Lavín, Alicia; Moreno-Ventas, Xabier; Ortiz-de-Zárate, Victoria; Abaunza, Pablo; Cabanas-López, José Manuel | Palabras clave: | Medio Marino Centro Oceanográfico de Santander |
Fecha de publicación: | 2007 | Citación: | ICES Journal Of Marine Science, 64. 2007: 425-438 | Resumen: | We explore the potential impact of climatic and oceanic variables on the dynamics of horse mackerel Trachurus trachurus (coastal distribution) and albacore Thunnus alalunga (oceanic distribution). Principal components analysis of a set of environmental parameters for the years 1966–2000 allowed us to characterize the system by three components. The first consisted mainly of sea surface temperature (SST; 18.5% of variability), the second was determined by the oceanic transport indices, potential energy anomaly (PEA), and the Gulf Stream Index (15.6%), and the third by the meridional wind component and Ekman transport (11.5%). Horse mackerel recruitment was negatively correlated mainly with the first thermal component, whereas albacore age 3 catches were negatively correlated with the second oceanic component and positively with the third wind component. Multiple linear regression confirmed that environmental conditions [SST, PEA, and the zonal (east–west) wind component] explained the availability of age 3 albacore to the surface fisheries for the period 1975–1999. In contrast, cross-validation analysis showed that environmental conditions did not consistently explain horse mackerel recruitment, probably because of the short time-series available (15 y). | Versión del editor: | https://academic.oup.com/icesjms/article/64/3/425/812225 | URI: | http://hdl.handle.net/10261/321450 | DOI: | 10.1093/icesjms/fsl042 | ISSN: | 1054-3139 |
Aparece en las colecciones: | (IEO) Artículos |
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