dc.contributor.author | Holm, Marianne | |
dc.contributor.author | Jørstad, Knut Eirik | |
dc.contributor.author | Skilbrei, Ove | |
dc.contributor.author | Pedersen, Tom N. | |
dc.contributor.author | Skaala, Øystein | |
dc.contributor.author | Nortvedt, Ragnar | |
dc.date.accessioned | 2012-08-28T13:45:01Z | |
dc.date.available | 2012-08-28T13:45:01Z | |
dc.date.issued | 1991 | |
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/11250/105010 | |
dc.description.abstract | The present project is launched within the frame of a 7 year government funded
programme to establish an additional livelihood for the coastal regions. The aim of the
study is, through controlled experiments, to find ecologically and genetically sound release
and recapture methods for salmon ranching. The coastal ranching model is based on
releases from small coastal watercourses indepent large rivers with natural salmon
stocks. The first releases were made in May- June 1991, when around 50 000 tagged
smolts originating from three regional rivers were released in the Selstøvågen from the
Selstø hatchery. The only fresh waters draining into the bay are the hatchery effluents
amounting to about 2 m^3 min^-1. Prior to release the fish were acclimatized to sea water in
net pens. During release the fish were surveyed by divers with underwater- video, a
SIMRAD EK 500 split-beam echo sounder and fisheries sonar. Hydrography and
meteorology was monitored, test fishing for predators and smolts were undertaken.
The results indicate rapid westward migration of smolts and 0.1% loss of fish to predators,
thus supporting the assumption that predation is a less important cause for postsmolt
mortality in the marine environment. | no_NO |
dc.language.iso | eng | no_NO |
dc.publisher | ICES | no_NO |
dc.relation.ispartofseries | ICES CM Documents;1991/M:38 | |
dc.subject | salmon farming | no_NO |
dc.subject | lakseoppdrett | no_NO |
dc.subject | recapture | no_NO |
dc.subject | gjenfangst | no_NO |
dc.title | Coastal releases of Atlantic salmon, a new model for salmon ranching in Norway | no_NO |
dc.type | Working paper | no_NO |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Resource biology: 921 | no_NO |
dc.subject.nsi | VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 | no_NO |
dc.source.pagenumber | 15 s. | no_NO |