Vis enkel innførsel

dc.contributor.authorHolm, Jens Christian
dc.contributor.authorTuene, Stig
dc.contributor.authorFosseidengen, Jan Erik
dc.date.accessioned2012-10-08T17:34:21Z
dc.date.available2012-10-08T17:34:21Z
dc.date.issued1998
dc.identifier.citationThis report is not to be cited without prior reference to the authorsno_NO
dc.identifier.urihttp://hdl.handle.net/11250/105855
dc.description.abstractHalibut behaviour in net pens has been studied using direct observation, underwater video and/or hydroacoustic equipment. Rearing experience includes a wide range of fish weights (50-10.000 g) and fish densities (4-150 kg/m2). Individual halibut is able to change their coloration on the ocular side from their whitespotted benthic camouflage to the uniformly brown-grey pelagic camouflage within a minute and vice-a-versa. The proportion of fish with pelagic camouflage on/near the bottom was high in the net pens with high densities, and such groups also showed suboptimal growth. The results also indicated an increase in pelagic swimming activity in the net pens with the highest densities. High light levels and low temperatures decreased the pelagic swimming activity of the fish. Halibut in net pens reared at low densities did not spread evenly on the bottom, but were usually found in clumps.no_NO
dc.language.isoengno_NO
dc.publisherICESno_NO
dc.relation.ispartofseriesICES CM Documents;1998/L:4
dc.subjecthalibutno_NO
dc.subjectkveiteno_NO
dc.subjectfish behaviourno_NO
dc.subjectfiskeatferdno_NO
dc.subjectgrowthno_NO
dc.subjectvekstno_NO
dc.titleHalibut behaviour as a means of assessing suitability of ongrowth systemsno_NO
dc.typeWorking paperno_NO
dc.subject.nsiVDP::Mathematics and natural science: 400::Zoology and botany: 480::Ethology: 485no_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fish health: 923no_NO
dc.subject.nsiVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922no_NO
dc.source.pagenumber12 s.no_NO


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel