CPUEs and body length of Antarctic krill within commercial hauls of polish trawler FV Lepus in the fishing ground off South Orkneys in January and February 1991

Length composition of krill in diurnal and night hauls of FV Lepus, off S. Orkneys in January and February 1991, generally show similar pattern. The proportion of bigger individuals of krill in night hauls was slightly higher than within diurnal hauls. CPUE values in February were higher than those in January. No larval fish were recorded in krill catches. Only few specimens of Electrona antarctica (of length range 53 - 103 mm) were found in some night hauls.