Data/hora: 10/06/2024 08:11:23

Provedor de dados: | Institutional Archive of Ifreme (ArchiMer)
País: | France
Título: | Les captures accidentelles de cétacés dans les pêches professionnelles françaises en 2011 : rapport national sur la mise en oeuvre du règlement européen (CE) No 812/2004 – (année 2011)
Autores: | Morizur, Yvon; Demaneche, Sebastien; Dube, Benoit; Gaudou, Olivier; Dimeet, Joel.
Data: | 2012-09
Ano: | 2012
Resumo: | The European Regulation 812/2004 aims to assess the incidental catches of cetaceans in fisheries and to limit as much as possible the bycatch. The program Obsmer manages for France all the observations at sea required by various fishery regulations. This program is implemented by the ministry of agriculture and fisheries (Direction des Pêches Maritimes et de l’Aquaculture) and IFREMER. For the European Regulation 812/2004, the effort dedicated to observation on board of vessels during the year 2011 represents 287 days of sea area for static gears in ICES area VIII, and also 299 days at sea for towed gears in ICES areas VII &amp; VIII and also in the Mediterranean area. In addition some 308 days at sea were dedicated to set nets in areas concerned with pingers (zones IV and VII). Over all 900 fishing days were monitored at sea during the year 2011. The monitoring scheme contained a higher number of days by assuming a coverage rate of 10% throughout the year for trawlers &gt;= 15m, 5% for trawlers &lt;15m or set nets vessels &gt;= 15 ms and 1% for vessels less than 15 m operating with set nets. Four different species were caught incidentally during 2011: Delphinus delphis (6 animals), Phocoena phocoena (4°animals), Tursiops truncatus (1 animal), et Stenella coeruleoalba (1 animal). Only the bycatch of a few segments of fleets was estimated. An estimate of 207 common dolphins Delphinus delphis was obtained for pair midwater trawling in the Western Channel, and a minimum estimate of 94 porpoises Phocoena phocoena resulted from set nets in the Western Channel operated by vessels greater than 15m. However the coefficients of variation (respectively 95% and 61 %) are high on these estimates. No catch of cetaceans have been observed in some segments well covered by observation. This was the case of the tuna pelagic trawl areas VII &amp; VIII, the demersal fish nets in area VIIh for vessels over 15 m or for vessels less than 15 m, and the demersal fish nets in area VIIe for vessels less than 15m. No estimate has been made possible for the Bay of Biscay or the Mediterranean due to an inadequate or irregular coverage. Analyses conducted on strandings, however, demonstrate that the incidental catch of Phocoena phocoena and Delphinus delphis fisheries exist on the Bay of Biscay (van Canneyt et al., 2012). It would be useful to improve the monitoring scheme to get enough samples in the potential contributors of cetacean incidental bycatch. In the Bay of Biscay (PTM seabass trawling, set nets in the Bay of Biscay). For the Mediterranean area, sampling would be useful in the hake trawl fishery in addition to the small pelagic fish trawl fishery. In the North Sea/English Channel East, an effort should be made to increase the pool of vessels having the safety agreement for accepting scientific observers on board in order to get more correct estimate of incidental bycatch of cetaceans. In the Mediterranean sea, 164 days at sea were dedicated to fishing set nets hauled by coastal vessels in Corsica between march and september 2011 and no bycatch of cetaceans and turtle was recorded by the observers of the Stareso project. It should be mentioned also that the DCF data during the year 2011 show a few catches of common dolphins in gears not involved in the regulation as the bottom trawl (OTB) in the western Channel. Bycatch of seals and turtles were also recorded by observers. No bycatch of seals was observed during the year 2011. Two bycatch of turtle Caretta caretta was reported caught alive in the Mediterranean trawling OTB in two trips of november and december.
Tipo: | Text
Idioma: | Francês
Identificador: | http://archimer.ifremer.fr/doc/00114/22559/20247.pdf
Relação: | http://archimer.ifremer.fr/doc/00114/22559/
Formato: | application/pdf
Fonte: | 2012 Ifremer