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Please use this identifier to cite or link to this item: http://hdl.handle.net/10793/1077

Title: The recent population expansion of boarfish, Capros aper (Linnaeus, 1758): interactions of climate, growth and recruitment
Authors: Coad, J.O.
Hüssy, K.
Farrell, E.D.
Clarke, M.W.
Keywords: Temperature
Northeast Atlantic
Boarfish
Capros aper
Growth chronology
Recruitment
Climate
Issue Date: 2014
Publisher: John Wiley & Sons, Inc
Citation: Coad, J. O., Hüssy, K., Farrell, E. D. and Clarke, M. W. (2014), The recent population expansion of boarfish, Capros aper (Linnaeus, 1758): interactions of climate, growth and recruitment. Journal of Applied Ichthyology, 30: 463–471. doi: 10.1111/jai.12412
Series/Report no.: Journal of Applied Ichthyology;30: 463–471
Abstract: The objectives of this study were to evaluate whether temperature changes in the Northeast Atlantic influence the growth and recruitment dynamics of boarfish, Capros aper. Two geographically separate areas were examined, ‘north’ at the northern distribution range west of Ireland and ‘south’ on the main fishing grounds south of Ireland. No significant differences in length-at-age were observed between the two areas. Interannual otolith growth patterns were similar between the two areas with distinct years of faster and slower growth. In the ‘north’, no significant relationship between adult growth and temperature was observed, while growth in the ‘south’ was positively related to temperature up to approximately 16°C growth rates were suppressed in the years with temperatures above that. Recruitment showed a positive correlation with adult growth the previous year for the Spanish recruitment index only, suggesting spatial connectivity between the Celtic Sea and the Bay of Biscay. The age distributions were similar in both areas and despite the boarfish's longevity of >30 years, are dominated by the age classes corresponding to the years with high recruitment, suggesting that increased recruitment is responsible for the observed stock expansion.
Description: Peer-reviewed. This is the pre-peer reviewed version of the following article: Coad, J. O., Hüssy, K., Farrell, E. D. and Clarke, M. W. (2014), The recent population expansion of boarfish, Capros aper (Linnaeus, 1758): interactions of climate, growth and recruitment. Journal of Applied Ichthyology, 30: 463–471. doi: 10.1111/jai.12412, which has been published in final form at DOI: 10.1111/jai.12412
URI: http://hdl.handle.net/10793/1077
ISSN: 1439-0426
Appears in Collections:Peer Reviewed Scientific Papers

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