Jouffre Didier, Senghor D., Diallo I., Diop I., Ndiaye P., Groupe Indiawa. (2017). Significant ecological events in marine ecosystems in West Africa : an inventory duty [résumé]. In :
Brehmer Patrice (ed.), Ba B. (ed.), Kraus G. (ed.). International conference ICAWA 2016 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters. Dakar : SRFC/CSRP ; IRD, p. 96. ICAWA : International Conference AWA, 3., Dakar (SEN), 2016/12/13-15. ISBN 978-2-9553602-0-5.
Titre du document
Significant ecological events in marine ecosystems in West Africa : an inventory duty [résumé]
Année de publication
2017
Type de document
Colloque
Auteurs
Jouffre Didier, Senghor D., Diallo I., Diop I., Ndiaye P., Groupe Indiawa
In
Brehmer Patrice (ed.), Ba B. (ed.), Kraus G. (ed.), International conference ICAWA 2016 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters
Source
Dakar : SRFC/CSRP ; IRD, 2017,
p. 96 ISBN 978-2-9553602-0-5
Colloque
ICAWA : International Conference AWA, 3., Dakar (SEN), 2016/12/13-15
An inventory of significant ecological events in West African coastal marine ecosystems over the last decades has been conducted by combining three approaches: a document review, a survey of fishermen and an analysis of fishery statistics. This method allowed to identify an initial series of events that took place over the period 1970 to 2014, mainly in Senegal. This series refers to groups or species of fishery interest, of which fluctuations in abundance, either sporadically or in the longer term, have had an impact on the fisheries that exploit them. These species include Baltic carolinensis, Tassergal (Pomatomus saltator), octopus (Octopus vulgaris), Thai murex (Stramonita haemastoma), West African strombe (Strombus latus) and belt (Trichiurus lepturus). This paper describes and analyzes the events identified during this inventory, in terms of what is known and/or what is perceived. It highlights differences in perception between actors (scientists vs professionals in the fishing sector) and sources of information. These differences invite us to think about strategies to improve our ability to perceive and record the ecological changes occurring in marine ecosystems and to document them in real time. Such reflection is necessary in West Africa as elsewhere, since this knowledge is an essential prerequisite for a better understanding of the functioning of the ecosystems in question and to meet the needs of their management, exploitation and conservation.
Plan de classement
Sciences du milieu [021]
;
Ressources halieutiques [040]
Localisation
Fonds IRD [F A010071832]
Identifiant IRD
fdi:010072136
