In situ fish target strengths derived with a split-beam echo sounder

dc.contributor.author	Nakken, Odd
dc.contributor.author	Foote, Kenneth G.
dc.contributor.author	Aglen, Asgeir
dc.date.accessioned	2008-06-23T07:11:03Z
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/11250/100241
dc.description.abstract	In-situ target strengths of six fishes were determined with a split-beam echo sounder during cruises about Lofoten in March 1984 and the Shetland Islands in July 1984. The species and lengths, mean and standard deviation, are the following: cod (Gadus morhua), 82 +- 11 cm, saithe (Pollachius virens), 57 +- 6 cm; Norway pout (Trisopterus esmarki), 18+- 2 and 15 +- 1 cm; herring (Clupea harengus), 28 +- 2 cm; redfish or ocean perch (Sebastes marinus), 20 +- 9 cm; and greater silver smelt (Argentina silus), 37 +- 4 cm. Extraction of unbiased mean target strenqths by a method of threshold compensation is described.	en
dc.format.extent	688389 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/B:28	en
dc.title	In situ fish target strengths derived with a split-beam echo sounder	en
dc.type	Working paper	en
dc.subject.nsi	VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920
dc.source.pagenumber	14 s.	en