Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Acoustic surveys carried out in the summer and autumn of 1987-1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean between 48° and 56° and from 8° to 48°W to be approximately 1.7x106 tonnes. Over the greater part of the surveyed area the fish were sparsely distributed. Dense concentrations consisting predominantly of one myctophid species, Electrona carlsbergi, were found only in some limited areas. The bulk of the surveyed biomass of myctophids was found to be within the Antarctic Convergence area.