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https://hdl.handle.net/2183/47949 The Use of Spearfishing Competition Data in Fisheries Management: Evidence for a Hidden Near Collapse of a Coastal Fish Community of Galicia (NE Atlantic Ocean)
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Pita, P. and Freire, J. (2014), The use of spearfishing competition data in fisheries management: evidence for a hidden near collapse of a coastal fish community of Galicia (NE Atlantic Ocean). Fish Manag Ecol, 21: 454-469. https://doi.org/10.1111/fme.12095
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[Abstract] The use of commercial catch statistics to estimate overfishing consequences has been criticised, but alternative long-term data sets are rare. Long time-series data sets from recreational fisheries competitions have been used to infer trends in coastal fish communities. Here an historic archive (1953–2007) of recreational spear fisheries in Galicia (NW Spain) was employed to estimate long-term changes in coastal ecosystems. Using generalised additive regression models, decreases in the abundances of coastal rocky reef fishes of up to 76% over the last 50 years were found. In the same period, the mean body weight also decreased by 76%. In addition, relative catch frequency has decreased for the most valuable commercial species. Overfishing, amongst other human impacts, has brought these ecosystems so close to collapse that it is urgent to implement measures to ensure their recovery.
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This is the peer reviewed version of the following article: Pita, P. and Freire, J. (2014), The use of spearfishing competition data in fisheries management: evidence for a hidden near collapse of a coastal fish community of Galicia (NE Atlantic Ocean). Fish Manag Ecol, 21: 454-469, which has been published in final form at https://doi.org/10.1111/fme.12095. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.