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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/29214
Title: Modelling catch, effort and price in a juvenile Eledone cirrhosa fishery over a 10-year period
Authors: Sánchez, Pilar; Maynou, Francesc; Demestre, Montserrat
Keywords: Eledone cirrhosa
generalised linear models
Issue Date: 2004
Publisher: Elsevier
Citation: Fisheries Research 68(1-3): 319-327 (2004)
Abstract: The fishing tactics (métier) employed by the trawl fleet of Barcelona (NW Mediterranean, Spain) to catch the juveniles of horned octopus (Eledone cirrhosa) were defined by multivariate statistics. The monthly series of catch per unit effort (CPUE), price and effort were obtained from daily records of the fishery from 1992 to 2001, together with the technical specifications of the vessels. Generalised linear models (GLMs) were applied to analyse the relationships between year, month, and technical characteristics with the CPUE, price and effort. The results showed that the models fitted to the E. cirrhosa data explained 61.57% of the deviance and that seasonal effects were important in explaining CPUE variability, the price of the catch and, to a lesser extent, the effort deployed by the trawlers. The results suggest that factors other than month or price condition the effort applied by this fishing tactic, probably size of juvenile E. cirrhosa, dictated by consumer preferences. The importance of seasonal effects in this fishery are discussed in terms of the recruitment of E. cirrhosa and consumer preferences. Contrary to other works applying GLM methods to the analysis of catch per unit effort, the importance of the technical characteristics of the vessels was very low
Description: 9 pages, 4 figures, 4 tables
Publisher version (URL): http://dx.doi.org/10.1016/j.fishres.2003.11.008
URI: http://hdl.handle.net/10261/29214
DOI: 10.1016/j.fishres.2003.11.008
ISSN: 0165-7836
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