Hydroacoustic detection of food waste - a method to estimate maximum food intake of fish populations in sea cages

dc.contributor.author	Juell, Jon-Erik
dc.date.accessioned	2012-08-21T14:32:41Z
dc.date.available	2012-08-21T14:32:41Z
dc.date.issued	1990
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/11250/104733
dc.description.abstract	A linear relationship between echo energy and amount of salmon dry food was established. Measurements were carried out both for food batches (5-400 gram) and single pellets. For a certain amount of food, the echo energy decreased when pellet size increased. The relationships allowed hydroacoustic detection of small amounts of food waste. Maximum food intake of a salmon population was determined as the amount of food delivered by the feeder before food waste was detected.	no_NO
dc.language.iso	eng	no_NO
dc.publisher	ICES	no_NO
dc.relation.ispartofseries	ICES CM Documents;1990/F:7
dc.subject	acoustics	no_NO
dc.subject	akustikk	no_NO
dc.subject	fish waste	no_NO
dc.subject	fiskeavfall	no_NO
dc.subject	feeding	no_NO
dc.subject	fôring	no_NO
dc.title	Hydroacoustic detection of food waste - a method to estimate maximum food intake of fish populations in sea cages	no_NO
dc.type	Working paper	no_NO
dc.subject.nsi	VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922	no_NO
dc.source.pagenumber	14 s.	no_NO