Report of the FAO Working Group on the Assessment of Small Pelagic Fish off Northwest Africa. Nouakchott, Mauritania, 21–30 April 2009. / Rapport du Groupe de travail de la FAO sur l’évaluation des petits pélagiques au large de l’Afrique nordoccidentale. Nouakchott, Mauritanie, 21-30 avril 2009.
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
The ninth meeting of the FAO Working Group on the Assessment of Small Pelagic Fish off Northwest Africa was held in Nouakchott, Mauritania, from 21 to 30 April 2009. The Group assessed the state of the small pelagic resources in Northwest Africa and made projections on the development of the stocks and on future effort and catch levels. The advices for the stocks are given in relation to the agreed reference points F0.1, FMSY, B0.1 and BMSY and on the basis of the projections for the next five y ears. Total catch of small pelagic fish for the period from 1990 to 2008 has been fluctuating with an average of around 1.7 million tonnes. With the exception of Sardine (Sardina pilchardus) in Zone C, the other small pelagic fish stocks in the region are considered to be either fully or overexploited. The catches of Round sardinella (Sardinella aurita) are high over the last three years probably because of a very good recruitment in 2005, but there is no evidence of another good year class in t he following years. The Working Group remains concerned about this stock and still considers it overexploited. Cunene horse mackerel (Trachurus trecae) was found to be overexploited and the recruitment survey index suggests a bad recruitment for 2008 compared with 2007. The state of the Atlantic horse mackerel stock (Trachurus trachurus) improves, probably due to a good recruitment in 2007, and in 2008 is considered fully exploited. Because the horse mackerel fishery is a mixed fishery in parts of the zone, an overall reduction of effort on these species was recommended. Chub mackerel (Scomber japonicus) are found to be fully exploited.