South Coast Hake Biomass Survey on the Africana Voyage 056, September 1987

The objectives of the cruise were to survey by means of trawling the abundance of adult and recruiting hake, sole and other trawl target species; to investigate the environment and ecological interrelationships of hake and other demersal species in the various depth strata; to investigate the occurence, distribution and abundance of squid and squid larvae; to investigate the occurence of linefish species in shallow waters; to identify every species caught in the trawl net; and to do chondrichthyian research. Oceanographic research assistants were also trained.

巡航的目标在于通过拖网调查成年和幼苗期鲑鳕、鳎鱼及其他拖网目标物种的丰度；研究鲑鳕及其他底栖物种在不同水深层的生态环境和生态相互关系；调查鱿鱼及其幼体的出现、分布和丰度；调查浅水区线鱼类的出现；识别在拖网中捕获的每一种物种；以及进行软骨鱼类研究。同时，还培训了海洋学研究助理。