No Thumbnail Available

REPORT OF THE TECHNICAL CONSULTATION ON SMALL PELAGIC SPECIES OF THE STATISTICAL DIVISION WESTERN GULF OF GUINEA

Oceanographic Research Centre Abidjan, Côte d'Ivoire 8–12 December 1987











Also available in:
No results found.

Related items

Showing items related by metadata.

  • Thumbnail Image
    Book (stand-alone)
    GFCM - Report of the Fourth Technical Consultation of the General Fisheries Council for the Mediterranean on Stock Assessment in the Balearic and Gulf of Lions Statistical Divisions. Sidi-Fredj, Algeria, 16-21 November 1985. 231p. 259871-881-Bi. / CGPM - Rapport de la quatrième Consultation technique du Conseil général des pêches pour la Méditerranée sur l'évaluation des stocks dans les divisions statistiques Baléares et golfe du Lion. Sidi-Fredj, Algérie, 16-21 novembre 1985. 1986
    Also available in:
    No results found.

    The meeting reviewed the progress achieved since 1983 1.n the various fields of research recommended by the previous consultation and, in particular, in demersal and pelagic stocks assessment. It also considered the! problem of small scale fisheries assessment and proposed research directives for the intersessional period. A Workshop on simple analytic methods for stock assessment was held in conjunction with the Consultation. It was proposed to orgauize the next consultation in Fuengirola (Mala ga), Spain, in 1987.
  • No Thumbnail Available
    Project
    Report of the ad hoc working group on the coastal pelagic stocks of the western Gulf of Guinea
    Held at the Centre de Recherches Océanographique, Abidjan, Côte d'Ivoire 10–16 December, 1990
    1992
    Also available in:
    No results found.

    The objective of the working group was to update the statistics on the stocks of small pelagic fishes in the western Gulf of Guinea (Côte d'Ivoire, Ghana, Togo, Benin), refine the data, acquire a better understanding of the biology of the species and identify methods for a better evaluation of the stocks. The four species of concern to the Working Group were: Sardinella aurita, S.maderensis, Scomber japonicus and Engraulis encrasicolus. The sensitivity of coastal pelagic species to environ mental factors was emphasized and upwellings, discharge of coastal rivers into the sea, coastal currents, winds were related to the fisheries. The fisheries were described and in addition to the analysis of catch and CPUE data, a time-space analysis of catch statistics, yield and length frequencies were carried out, particularly for S. aurita and S.maderensis. The Working Group reviewed the biological data available and the hypotheses already put forward on the nature of the stocks of the differ ent species. Stocks assessments were based on CPUE and length frequencies data. The Working Group concluded that the recent modification of the productivity of the ecosystem was favourable to the fisheries and high catch rates and CPUE of Sardinella aurita show that the related stock (or stocks) are recovering. The Working Group recommended to pursue the study of relevant physical and oceanographical factors, to strengthen statistics, biology and data processing. Multivariate analysis were al so recommended to establish for the principal species, the typology of strata defined by fishing zone-month-gear within which reliable abundance index should be calculated.
  • Thumbnail Image
    Project
    Report , Working Group on Artisanal Fisheries Statistics for the Western Gulf of Guinea, Nigeria and Cameroon 1993
    Also available in:
    No results found.

    The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organisation or the financing agency concerning the legal status of any country or territory, city or area, or of its authorities, or concerning the delimitations of its frontiers or boundaries.

Users also downloaded

Showing related downloaded files

No results found.