DEMERSTEM
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Demersal Ecosystem |
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Research
Context and Issues
DEMERSTEM project was selected under the PESCAO program (PESCAO is a EU support action for fisheries in Ecowas Area). We aim to improve knowledge on shared demersal stocks or shared fisheries targeting demersal stocks. Demersal species are less caught than pelagic one, however they are more valuable and very useful for ecosystem functioning. There are also iconic for artisanal fisheries.
Objectives
We are mainly targeted to assess 6 demersal stocks that are shared by at least two of our partners. We aim to provide scientific advice on these stocks in order to promote a sustainable exploitation of the ressources. We also plan to enlarge the mono specific approach with additional studies :
- Sensitive area mapping to help for spatial planning.
- Artisanal and industrial fisheries monitoring with GPS or VMS tools
- Ecosystem approach for fisheries
Moreover our actions are tailored to increase regional cooperation and synergies working tohether to assess shared stocks or fisheries.
Expected Results
Main results are :
- Stock identification and assessment for at least 6 selected demersal stocks
- Better data viewability and accessibility, mainly for demersal scientific trawl survey
- a review of most suitable assessment models for selected stocks
- a sensitive area map for selected species
- a better identification of fisheries impact using effort mapping
- additional ecosystem process that coud improve the scientific advice
Publications issued from the project
Jerome Guitton, Mohamed Soumah (2023). GPSMonitoring: A R package for small scale fisheries monitoring using GPS logger. Software Impacts, 2023, 17, pp.100573. ⟨10.1016/j.simpa.2023.100573⟩
Vally Yeslem, Quenum Crespin, Thiaw Modou, Guitton Jérôme, Meissa Beyah, Le Pape Olivier (2023). Quantitative mapping of effective habitats for the White grouper Epinephelus aeneus (Geoffroy Saint–Hilaire, 1817) in North West Africa. Regional Studies in Marine Science, 2023, 65, pp.103067. ⟨10.1016/j.rsma.2023.103067⟩
Soumah Mohamed, Camara Ousmane, Diallo Ibrahima, Jouffre Didier, Intchama Jeremias Francisco, Pinto Josepha, Beyah Meissa Habib, Quemper Florian, Gascuel Didier, Guitton Jérôme (2022). Trends in abondance indices of Pagrus caeruleostictus in Guinea / Guinea-Bissau. [Rapport de recherche] Institut Agro; CNSHB, Centre national des ressources halieutique de Boussoura; CIPA, Centro de Investigação Pesqueira Aplicada. 2022, 40 p
People involved
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GASCUEL Didier, Scientist Phone : +33 2 23 48 55 34 Email : didier.gascuel@institut-agro.fr |
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GUITTON Jérôme, Scientist Phone : +33 2 23 48 58 59 Email : jerome.guitton@institut-agro.fr |
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LE PAPE Olivier, Scientist Phone : +33 2 23 48 55 31 Email : olivier.le.pape@institut-agro.fr |
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QUEMPER Florian, Scientist Phone : +33 2 23 48 59 01 Email : florian.quemper@institut-agro.fr |
Partners
- IMROP (Mauritanie)
- CRODT (Sénegal)
- CIPA (Guinée-Bissau)
- CNSHB (Guinée)
- Fisheries commission (Ghana)
- CRO (Côte d'Ivoire)
- IRD (France)
- SZN (Italie)
- IEO (Espagne)
Funding and Support
Union Européenne, programme PESCAO