Assigning values of target strength and equivalent beam angle in acoustic surveys of fish

dc.contributor.author	Foote, Kenneth G.
dc.date.accessioned	2012-08-28T13:38:51Z
dc.date.available	2012-08-28T13:38:51Z
dc.date.issued	1991
dc.identifier.citation	This report is not to be cited without prior reference to the author	no_NO
dc.identifier.uri	http://hdl.handle.net/11250/104848
dc.description.abstract	Contrary to popular opinion, the equivalent beam angle (~) is not determined solely by the transducer directivity. Rather, like the target strength TS, it also depends on the scattering properties of the target fish, but relative to the detection threshold. The connection between the two quantities, (~) and TS, is elucidated. A method of application is illustrated through an example.	no_NO
dc.language.iso	eng	no_NO
dc.publisher	ICES	no_NO
dc.relation.ispartofseries	ICES CM Documents;1991/B:34
dc.subject	acoustics	no_NO
dc.subject	akustikk	no_NO
dc.subject	gear experiments	no_NO
dc.subject	redskapsforsøk	no_NO
dc.title	Assigning values of target strength and equivalent beam angle in acoustic surveys of fish	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.source.pagenumber	6 s.	no_NO