Browsing Brage IMR by Author "Øritsland, Torger"
Now showing items 21-29 of 29
-
Tagging and recoveries of grey seals Halichoerus grypus in north Norway and on the Murman Coast, Russia
Henriksen, Gunnar; Haug, Tore; Kondakov, Andrej; Nilssen, Kjell Tormod; Øritsland, Torger (ICES CM documents, Working paper, 1996)A total of 787 grey seal pups were tagged between Vestfjorden in North Norway and the White Sea in North West Russia from 1989 to 1994. A majority of them (542) were tagged at the Ainov archipelago on the Murman coast. ... -
Toktrapport [11/3 - 10/5, 1962]
Øritsland, Torger ([Toktrapport/Havforskningsinstituttet];, Working paper, 1962-03-11) -
Toktrapport [26/2 - 11/5, 1967]
Øritsland, Torger ([Toktrapport/Havforskningsinstituttet];, Working paper, 1967-02-26) -
Toktrapport [7/3 - 17/3, 1962]
Øritsland, Torger ([Toktrapport/Havforskningsinstituttet];, Working paper, 1962-03-07) -
Trends in growth and reproductive parameters of Barents Sea harp seals
Kjellqwist, Sten Anders; Haug, Tore; Øritsland, Torger (Working paper, 1993)Data from reproductive organs of Barents Sea harp seals Phoca groenlandica with corresponding age determinations have been analysed in combined samples collected during three periods: 1963-1972, 1976-1985 and 1990-1993. A ... -
Undersøkelser av steinkobbe og havert i Rogaland og Finnmark i 1981
Bjørge, Arne; Bergflødt, Bjørn; Fagerheim, Kjell Arne; Øritsland, Torger; Skadsheim, Arnfinn (Fisken og havet, Research report, 1982)The outer coastline from Bømlafjorden to Jæren and Lysefjorden in Rogaland were surveyed 29 May-5 June. Another survey was carried out on the coast of Finnmark from Varangerfjorden to Sørøya 26 June-7 July 1981. In ... -
Using mark-recapture methods to estimate pup production of harp seals (Phoca groenlandica) in the Greenland Sea
Øien, Nils; Øritsland, Torger (ICES CM documents, Working paper, 1992)During the period 1968-1991 16,917 harp seal pups have been tagged in the Greenland Sea. From 1976 until 1991, there have been 468 recoveries. 73 of these, mostly drowned in fishing gear or part of Inuit catches at Greenland, ... -
Validation of age estimation in the Harp seal, Phoca groenlandica, using dentinal annuli
Bowen, W. D.; Sergeant, David E.; Øritsland, Torger (Journal article; Peer reviewed, 1983)We investigated the validity and accuracy of age estimation in harp seals, Phoca groenlandica, using a sample of 155 known-age teeth from seals age 3 mo to 10 yr. Under transmitted light, transverse sections of harp seal ... -
Whales and seals marked in the northeast Atlantic in 1974
Christensen, Ivar; Øritsland, Torger (ICES CM documents, Working paper, 1974)