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http://hdl.handle.net/1834/689
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| Title: | State of the stocks and change in the abundance of demersal fisheries resources in the member countries of the CSRP |
| Authors: | Gasceul, D.
Laurans, M.
Sidibe, A.
Barry, M.D. |
| ASFA Terms: | Demersal fisheries
Stock assessment |
| Issue Date: | 27-Jun-2002 |
| Citation: | International Symposium on ‘Marine Fisheries, Ecosystems and Societies in West Africa: half a century of change, Senegal : Dakar |
| Abstract: | This communication presents a synthesis of the work undertaken within the
framework of the FIAS project, by the “Single-species Analysis” module. This work
focuses on statistical analyses of commercial fishing and the data from scientific trawling
surveys, in order to deduce the current state of exploited stocks and to better understand
the ecosystems of the sub-region.
This relates to the analyses of about 20 stocks, distributed in the waters of the
various countries and covering a broad range of ecological characteristics. Three
approaches were used: (1) analyses of a time series of estimates of abundance indices
obtained from GLM-type methods applied to survey or commercial data; analysis of a
time series of catches and catches per unit of effort used in production models of fisheries
dynamics; cohort analysis and biomass and recruitment models. These single-species
analyses, used through comparative ecology, are supplemented by the study of the
evolution of abundances of the various ecological demersal communities and their
trophic levels. |
| URI: | http://hdl.handle.net/1834/689 |
| Related document: | http://saup.fisheries.ubc.ca/Dakar/Session8.html |
| Appears in Collections: | Miscellaneous
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