dc.contributor.author | Moksness, Erlend | |
dc.contributor.author | Stefanussen, Dagfinn | |
dc.date.accessioned | 2012-08-21T14:32:30Z | |
dc.date.available | 2012-08-21T14:32:30Z | |
dc.date.issued | 1990 | |
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/11250/104731 | |
dc.description.abstract | Field caught common wolffish (Anarhichas lupus) and spotted wolffish (A.
minor) have been raised from fry on dry pellets. The two species have
experienced annual fluctuations in temperature between 6 and 12 °C and
the results indicates that both species have there best growth rates below
10 °C. With initial average wet weights of 2.6 g (common wolffish) and
6.3 g (spotted wolffish), and at equal experimental conditions, the
spotted wolffish reached four times the wet weight of the common
wolffish over a period of two years and 10 months, 3.4 and 0.9 kg
respectively. The specific growth rate, however, were 0.62 %d^-1 and
0. 58 %d^-1 respectively, indicating only small differences in growth rates
in that period. Estimates based upon the fastest growing fish in the
experimental groups indicated that at optimum temperature conditions
(approx 6 °C) the spotted wolffish will probably reach a total wet weight of
6 kg in two years from start-feeding, while the common wolffish (below
10 °C) will reach a weight of 3 kg in that same period. The common
wolffish mature at a size from 0. 5 - 1. 0 kg, while the spotted wolffish
mature at a size above 4 kg. | no_NO |
dc.language.iso | eng | no_NO |
dc.publisher | ICES | no_NO |
dc.relation.ispartofseries | ICES CM Documents;1990/F:2 | |
dc.subject | wolffish | no_NO |
dc.subject | steinbit | no_NO |
dc.subject | growth | no_NO |
dc.subject | vekst | no_NO |
dc.title | Growth rates in cultured common wolffish (Anarhicahas lupus) and spotted wolffish (A. minor) | 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 | 9 s. | no_NO |