Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé]
ICAWA : International Conference AWA, Dakar, SEN, 13-/12/2016 - 15/12/2016 Situated in West Africa, Senegal has 700 km of coastline characterized by a large Eastern Boundary Upwelling Ecosystem providing significant biological productivity. Small-scale fishing plays an important role in the national...
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ftunivbrest:oai:HAL:hal-04372725v1 2024-02-11T10:08:08+01:00 Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] Thiour, D. Diop, M. Brehmer, Patrice Diouf, M. Dossa, J. Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Brehmer, Patrice (ed.) Ba, B. (ed.) Kraus, G. (ed.) Dakar, France 2016-12-13 https://hal.science/hal-04372725 en eng HAL CCSD SRFC/CSRP IRD ISBN: 978-2-9553602-0-5 hal-04372725 https://hal.science/hal-04372725 IRD: fdi:010072114 ICAWA : International Conference AWA https://hal.science/hal-04372725 ICAWA : International Conference AWA, Dec 2016, Dakar, France. p. 53 SENEGAL MAURITANIE ATLANTIQUE [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery [SDV.BA]Life Sciences [q-bio]/Animal biology [SDV.EE]Life Sciences [q-bio]/Ecology environment info:eu-repo/semantics/conferenceObject Conference papers 2016 ftunivbrest 2024-01-23T23:37:20Z ICAWA : International Conference AWA, Dakar, SEN, 13-/12/2016 - 15/12/2016 Situated in West Africa, Senegal has 700 km of coastline characterized by a large Eastern Boundary Upwelling Ecosystem providing significant biological productivity. Small-scale fishing plays an important role in the national economy of Senegal. The fishing gear used has a potentially direct or indirect impact on seabirds. To examine and evaluate this impact surveys were conducted on eight landing sites. Field surveys (2-3 days) took place in 2015 based on a standardized interview with questionnaire conducted with 225 small-scale fishermen. The results obtained indicate that longlines are the fishing gear that causes the highest rate of annual accidental seabird catch (63 % of seabird caugth (n = 702)), followed by handlines (16%) and anchored gillnet (6 %). The Pomarine Skua (Stercorarius pomarinus) is the most captured bird annually (29 % of total captured birds), closely followed by the Cory's Shearwater (Calonectris diomedea) (28 % of captured birds) and the Northern Gannet (Morus bassanus) (13 % of captured birds). The village of Yoff is the landing site which has the highest rate of annual seabird catch with 39% of the total catch indicated, followed by Kayar with 19 % and Saint Louis with 14%, both situated on the Grande Côte. Further studies should be conducted in the entire Senegalese-Mauritanian coast in particular in the northern part of Senegal, to better evaluate the annual catch of seabirds. A great collaboration should also be established with longliners, handliners and anchored gillnet fishers to better quantify incidental catch of seabirds by the artisanal fishing gear and set up mitigation actions. Conference Object Pomarine Skua Stercorarius pomarinus Université de Bretagne Occidentale: HAL The Landing ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
institution |
Open Polar |
collection |
Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
SENEGAL MAURITANIE ATLANTIQUE [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery [SDV.BA]Life Sciences [q-bio]/Animal biology [SDV.EE]Life Sciences [q-bio]/Ecology environment |
spellingShingle |
SENEGAL MAURITANIE ATLANTIQUE [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery [SDV.BA]Life Sciences [q-bio]/Animal biology [SDV.EE]Life Sciences [q-bio]/Ecology environment Thiour, D. Diop, M. Brehmer, Patrice Diouf, M. Dossa, J. Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
topic_facet |
SENEGAL MAURITANIE ATLANTIQUE [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery [SDV.BA]Life Sciences [q-bio]/Animal biology [SDV.EE]Life Sciences [q-bio]/Ecology environment |
description |
ICAWA : International Conference AWA, Dakar, SEN, 13-/12/2016 - 15/12/2016 Situated in West Africa, Senegal has 700 km of coastline characterized by a large Eastern Boundary Upwelling Ecosystem providing significant biological productivity. Small-scale fishing plays an important role in the national economy of Senegal. The fishing gear used has a potentially direct or indirect impact on seabirds. To examine and evaluate this impact surveys were conducted on eight landing sites. Field surveys (2-3 days) took place in 2015 based on a standardized interview with questionnaire conducted with 225 small-scale fishermen. The results obtained indicate that longlines are the fishing gear that causes the highest rate of annual accidental seabird catch (63 % of seabird caugth (n = 702)), followed by handlines (16%) and anchored gillnet (6 %). The Pomarine Skua (Stercorarius pomarinus) is the most captured bird annually (29 % of total captured birds), closely followed by the Cory's Shearwater (Calonectris diomedea) (28 % of captured birds) and the Northern Gannet (Morus bassanus) (13 % of captured birds). The village of Yoff is the landing site which has the highest rate of annual seabird catch with 39% of the total catch indicated, followed by Kayar with 19 % and Saint Louis with 14%, both situated on the Grande Côte. Further studies should be conducted in the entire Senegalese-Mauritanian coast in particular in the northern part of Senegal, to better evaluate the annual catch of seabirds. A great collaboration should also be established with longliners, handliners and anchored gillnet fishers to better quantify incidental catch of seabirds by the artisanal fishing gear and set up mitigation actions. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Brehmer, Patrice (ed.) Ba, B. (ed.) Kraus, G. (ed.) |
format |
Conference Object |
author |
Thiour, D. Diop, M. Brehmer, Patrice Diouf, M. Dossa, J. |
author_facet |
Thiour, D. Diop, M. Brehmer, Patrice Diouf, M. Dossa, J. |
author_sort |
Thiour, D. |
title |
Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
title_short |
Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
title_full |
Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
title_fullStr |
Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
title_full_unstemmed |
Typology of small-scale fishing gear impact on seabirds in the Senegalo-Mauritanian Upwelling [résumé] |
title_sort |
typology of small-scale fishing gear impact on seabirds in the senegalo-mauritanian upwelling [résumé] |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-04372725 |
op_coverage |
Dakar, France |
long_lat |
ENVELOPE(-45.689,-45.689,-60.733,-60.733) |
geographic |
The Landing |
geographic_facet |
The Landing |
genre |
Pomarine Skua Stercorarius pomarinus |
genre_facet |
Pomarine Skua Stercorarius pomarinus |
op_source |
ICAWA : International Conference AWA https://hal.science/hal-04372725 ICAWA : International Conference AWA, Dec 2016, Dakar, France. p. 53 |
op_relation |
ISBN: 978-2-9553602-0-5 hal-04372725 https://hal.science/hal-04372725 IRD: fdi:010072114 |
_version_ |
1790607125543649280 |