P-2'^ 



Table 6.9. Estimated consumption of krlll by maior predators \J 

 (for detailed breakdovm set- relevant consumer section) 



6.8 Eyploitation 



Annual catch 



Exploratory fishing for krill has been in progress now for several years. Solyanik 

 (i960) obtained a small catch of krill using a small pelagic net from a v;haling ship. 

 Catches from the subsequent krill fishing expeditions are shoim in tables 6.10, 6.11 and 

 6.12. 



In addition to these exploratory fishing expeditions there are catches reported in 

 FAO Yearbook of Fishery Statistics Vol. 40 (PAO 1976) that probably refer to krill 

 ("Marine Crustacea, unspecified " taken from areas adjacent to the Fisheries Statistics 

 Antarctic regions). These figures, together with actual krill catches recorded in the 

 Yearbook, are set out in Table 6.13. 



1/ A single estimate of standing stock of between I.5 and 5 milliard tons is given by 

 Bogdanov (1974)« Since this figure was calculated on the basis of consumption by whales 

 and other consumers it probably refers to prodviction rather than biomass. Even allowing 

 for the product ion/biomass factor proposed by Allen (l97l) this figure is still enormous 

 compared to all other estimates of the resource. In the same paper Bogdanov estimates the 

 standing stock in the Southern Scotia Sea in I967 as 5 million tons, half of which is in 

 the zone of mixing between V/eddell Sea and circumpolar water. Also, he estimates that at 

 South Georgia the .stock is 0.7 million tons. These estimates were made directly and although 

 the precise method f nployed was not stated it was probably using echosounders and 

 commercial catch data. 



