Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/4056
Title: The role of climatic variability on the short-term fluctuations of octopus captures at the Canary Islands
Authors: Caballero Alfonso, Ángela María
Ganzedo López, Unai
Trujillo-Santana, Aarón
Polanco, J.
Santana del Pino, A. 
Ibarra-Berastegi, G.
Castro-Hernández, J. J. 
UNESCO Clasification: 310506 Técnicas pesqueras
240102 Comportamiento animal
2502 Climatología
240401 Bioestadística
Issue Date: 2010
Journal: Fisheries Research 
Abstract: The effect of temperature on the common octopus life cycle has been well studied. However, how other climatic patterns affect them is poorly understood. The present work emphasises the importance of the temperature on common octopus catches by the small-scale trap fishery off the Canary Islands, and also highlights the effect of the North Atlantic Oscillation (NAO) pattern. As well as an inverse and significant correlation between octopus abundance (measured as CPUE) and Sea Surface Temperature (SST), a direct relationship between abundance and NAO, off the Canary Archipelago, is reported. Using a linear model (lm) with a stepwise procedure, SST is found to be the most important and significant variable in autumn, accounting for 34.21%. Meanwhile, the NAO became more important in spring with 28.64% and a 31.13% of the explained variance in autumn.
URI: http://hdl.handle.net/10553/4056
ISSN: 0165-7836
DOI: 10.1016/j.fishres.2009.12.006
Source: Fisheries Research [ISSN 0165-7836], v. 102 (3), p. 258-265
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