Preliminary results from tests using a high-frequency sonar as trawl-sonde

dc.contributor.author	Ona, Egil
dc.contributor.author	Eger, K.
dc.date.accessioned	2012-07-03T09:24:07Z
dc.date.available	2012-07-03T09:24:07Z
dc.date.issued	1986
dc.identifier.citation	This report is not to be cited without prior reference to the authors	no_NO
dc.identifier.uri	http://hdl.handle.net/11250/104123
dc.description.abstract	A high-frequency, short-range sonar is tested for trawl-geometry measurements on pelagic and bottom trawls. The sonar was operated on a standard, coaxial trawl sonde cable, and produced excellent images of the trawl opening and panels. Data showing non-ideal performance of the pelagic sampling-trawl at several depths and speeds, together with corrected geometry are presented. At short range, the position of fish entering the bottom trawl could be measured.	no_NO
dc.language.iso	eng	no_NO
dc.publisher	ICES	no_NO
dc.relation.ispartofseries	ICES CM Documents;1986/B:37
dc.subject	gear experiments	no_NO
dc.subject	redskapsforsøk	no_NO
dc.subject	sonar	no_NO
dc.subject	fiskeatferd	no_NO
dc.subject	fish behaviour	no_NO
dc.title	Preliminary results from tests using a high-frequency sonar as trawl-sonde	no_NO
dc.type	Working paper	no_NO
dc.subject.nsi	VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924	no_NO
dc.subject.nsi	VDP::Technology: 500::Marine technology: 580::Ship technology: 582	no_NO
dc.source.pagenumber	10 s.	no_NO