Stock size of north-east arctic cod, estimates from survey data 1984/85

dc.contributor.author	Nakken, Odd
dc.contributor.author	Hylen, Arvid
dc.date.accessioned	2008-06-23T07:41:54Z
dc.date.issued	1985
dc.identifier.citation	This report is not to be quoted without prior consultation with the General Secretary.	en
dc.identifier.uri	http://hdl.handle.net/11250/100239
dc.description.abstract	Both the total and spawning stocks of North-East Arctic cod were assessed using Norwegian survey data and commercial landings. The total stock at 1 January 1985 was estimated to about 5100 million specimens, of which age group 2 and 3 amounted to about 3400 and 1200 million specimens respectively. The total number of fish of age 3 and older (3+) were estimated to 1500 million specimens which is 2.5 times higher than the estimate of about 575 million specimens arrived at by the Working Group on Arctic Fisheries. The spawning stock at 1 January 1985 was estimated to 72 million specimens which is a 17 percent reduction as compared to 1984. The bulk of the spawning stock were made up by 5, 6, 7 and 8 years old fish.	en
dc.format.extent	568897 bytes
dc.format.mimetype	application/pdf
dc.language.iso	eng	en
dc.publisher	ICES	en
dc.relation.ispartofseries	ICES CM documents	en
dc.relation.ispartofseries	1985/G:67	en
dc.title	Stock size of north-east arctic cod, estimates from survey data 1984/85	en
dc.type	Working paper	en
dc.subject.nsi	VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921
dc.source.pagenumber	14 s.	en