44 resultados para Conservación de recursos
Resumo:
Data collected during a survey conducted by the Soviet trawler Sebastopolsky rybak , in January 1987, covering the Boa-Paz area, Mozambique, were analysed. The biomass of demersal fish was found to be higher than the one of pelagic fish. The most representative group among the demersals was the first grade fish, where the families Sparidae, Lethrinidae, Lutjanidae and Serranidae were included, corresponding to a biomass of about 3,500 tonnes. In the pelagics the family Carangidae was the most important one and the species Decapterus russelli and Trachurus trachurus showed the highest biomass estimates in this family.
Resumo:
Catch evolution, fish yield and specific composition of commercial catches as well as biomass reduction of the main species exploited were analysed and the stock assessments of horse and chub mackerels in the Sofala and Boa-Paz Banks were examined for the period 1986 to the first half of 1989.
Resumo:
Esta contribución forma parte de los resultados del PICT 153 de la Agencia Nacional de Promoción Científica y Técnica, dirigido por la autora, entre cuyos objetivos se encuentra la transferencia del conocimiento. Es así, que la presente iconografía, tiene como propósito difundir a diferentes niveles de la sociedad la ictiofauna de una de nuestras provincias mesopotámicas contribuyendo de esta manera a la educación ambiental y al manejo y conservación de los recursos naturales.