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| Catchpole, T. L.; Feekings, J. P.; Madsen, N.; Palialexis, A.; Vassilopoulou, V.; Valeiras, J.; Garcia, T.; Nikolic, Natacha; Rochet, Marie-joelle. |
| Discards refer to the part of the catch not retained on board during commercial fishing operations, but returned to the sea. The proposed European Union Common Fisheries Policy reform, to be implemented in 2014, sets out a gradual elimination of discards by reducing unwanted catches and ensuring that all catches are landed. To develop successful discard mitigation measures, it is necessary to identify the reasons for discarding. Here, we have developed a simple model that can be applied to data from observer programmes (ObsPs) to establish the contribution of different drivers of discarding behaviour. The analysis makes inferences on the causes of discarding by partitioning discards into four categories based on the length of the fish and the associated... |
| Tipo: Text |
Palavras-chave: CFP; Discards; Fishers market; Quota. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00159/27030/26202.pdf |
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| de la Serna, J.M.; Valeiras, J.. |
| (Contribution to the biological study of blue shark (Prionace glauca) incidental catch by the Spanish surface longline fisheries for swordfish in the western Mediterranean). Blue shark (Prionace glauca) bycatches in the Spanish surface longline fisheries in the Mediterranean targeting swordfish (Xiphias gladius) from 1999 to 2001 represented 2% of the total catch. Information from onboard observers during 861 fishing sets in 26 longliners indicated that the highest catches were made in area 4-35000 (Alboran Sea) which represents 75.6% of the total observed catch of blue shark. The observed CPUE are from 5.5 to 34.1 kg/1000 hooks. Mean size at capture (LJFL) was 141.6 cm (SD=35.88). The proportion of females from the total was 0.5. |
| Tipo: Report |
Palavras-chave: Swordfish fishery; Blue shark; By-catch; Mediterranean; Prionace glauca; Shark fisheries; Sharks. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/790 |
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| de la Serna, J.M.; Valeiras, J.. |
| (Contribution to the biological study of blue shark (Prionace glauca) incidental catch by the Spanish surface longline fisheries for swordfish in the western Mediterranean). Blue shark (Prionace glauca) bycatches in the Spanish surface longline fisheries in the Mediterranean targeting swordfish (Xiphias gladius) from 1999 to 2001 represented 2% of the total catch. Information from onboard observers during 861 fishing sets in 26 longliners indicated that the highest catches were made in area 4-35000 (Alboran Sea) which represents 75.6% of the total observed catch of blue shark. The observed CPUE are from 5.5 to 34.1 kg/1000 hooks. Mean size at capture (LJFL) was 141.6 cm (SD=35.88). The proportion of females from the total was 0.5. |
| Tipo: Report |
Palavras-chave: Swordfish fishery; Mediterranean; Blue shark; By-catch; Prionace glauca; Shark fisheries. |
| Ano: 2003 |
URL: http://hdl.handle.net/1834/790 |
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