Blar i Brage IMR på forfatter "Nilssen, Kjell Tormod"
-
Marine indikatorer
van der Meeren, Gro; Øigård, Tor Arne; Øien, Nils; Nilssen, Kjell Tormod; Oug, Eivind; Sunnanå, Knut; Jakobsen, Tore; Mehl, Sigbjørn; Kvamme, Cecilie; Torstensen, Else; Stenevik, Erling Kåre; Planque, Benjamin; Helle, Gunnar; Gjøsæter, Jakob; Skiftesvik, Anne Berit; Aglen, Asgeir; Johannessen, Tore; Dommasnes, Are; Naustvoll, Lars-Johan; Moy, Frithjof E.; Falkenhaug, Tone; Melle, Webjørn; Knutsen, Tor; Eriksen, Elena; Jørgensen, Lis Lindal; Fosså, Jan Helge; Bannister, Raymond; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Strand, Øivind; Søvik, Guldborg; Jelmert, Anders; Knutsen, Jan Atle; Enersen, Svein Erik; Edvardsen, Hanne; Kroglund, Tone; Pedersen, Atle; Eikrem, Wenche; Bekkby, Trine; Tveite, Stein (DN-utredning;4-2010, Chapter, 2010-09)The Nature Index (NI) is established to get an overview of the state and development of biodiversity within the major ecosystems of Norway. It includes marine, limnic and terrestrial ecosystems. The aim of the index is to ... -
Marine indikatorer
van der Meeren, Gro; Øigård, Tor Arne; Øien, Nils; Nilssen, Kjell Tormod; Oug, Eivind; Sunnanå, Knut; Jakobsen, Tore; Mehl, Sigbjørn; Kvamme, Cecilie; Torstensen, Else; Stenevik, Erling Kåre; Planque, Benjamin; Helle, Gunnar; Gjøsæter, Jakob; Skiftesvik, Anne Berit; Aglen, Asgeir; Johannessen, Tore; Dommasnes, Are; Naustvoll, Lars-Johan; Moy, Frithjof E.; Falkenhaug, Tone; Melle, Webjørn; Knutsen, Tor; Eriksen, Elena; Jørgensen, Lis Lindal; Fosså, Jan Helge; Bannister, Raymond; Buhl-Mortensen, Lene; Buhl-Mortensen, Pål; Strand, Øivind; Søvik, Guldborg; Jelmert, Anders; Knutsen, Jan Atle; Enersen, Svein Erik; Edvardsen, Hanne; Kroglund, Tone; Pedersen, Atle; Eikrem, Wenche; Bekkby, Trine; Tveite, Stein (DN-utredning;4-2010, Chapter, 2010-09)The Nature Index (NI) is established to get an overview of the state and development of biodiversity within the major ecosystems of Norway. It includes marine, limnic and terrestrial ecosystems. The aim of the index is to ... -
Marine mammal hotspots across the circumpolar Arctic
Hamilton, Charmain D.; Lydersen, Christian; Aars, Jon; Acquarone, Mario; Atwood, Todd; Baylis, Alastair; Biuw, Martin; Boltunov, Andrei N.; Born, Erik W.; Boveng, Peter; Brown, Tanya M.; Cameron, Michael; Citta, John; Crawford, Justin; Dietz, Rune; Elias, Jim; Ferguson, Steven H.; Fisk, Aaron; Folkow, Lars; Frost, Kathryn J.; Glazov, Dmitri M.; Granquist, Sandra M.; Gryba, Rowenna; Harwood, Lois; Haug, Tore; Heide-Jørgensen, Mads Peter; Hussey, Nigel E.; Kalinek, Jimmy; Laidre, Kristin L.; Litovka, Dennis I.; London, Josh M.; Loseto, Lisa L.; MacPhee, Shannon; Marcoux, Marianne; Matthews, Cory J. D.; Nilssen, Kjell Tormod; Nordøy, Erling Sverre; O’Corry-Crowe, Greg; Øien, Nils Inge; Olsen, Morten Tange; Quakenbush, Lori; Rosing-Asvid, Aqqalu; Semenova, Varvara; Shelden, Kim E. W.; Shpak, Olga V.; Stenson, Garry; Storrie, Luke; Sveegaard, Signe; Teilmann, Jonas; Ugarte, Fernando; Von Duyke, Andrew L.; Watt, Cortney; Wiig, Øystein; Wilson, Ryan R.; Yurkowski, David J.; Kovacs, Kit M. (Peer reviewed; Journal article, 2022)Aim: Identify hotspots and areas of high species richness for Arctic marine mammals. Location: Circumpolar Arctic. Methods: A total of 2115 biologging devices were deployed on marine mammals from 13 species in the Arctic ... -
Marinøkologiske ringvirkninger av vindmølleparker til havs
Steen, Henning; Nilssen, Kjell Tormod; Agnalt, Ann-Lisbeth; Alvsvåg, John; Asplin, Lars; Jelmert, Anders; Dahl, Einar; Dalen, John (Fisken og havet, Research report, 2008)There is an increasing need for energy. Considerable efforts are being made to develop environmentally friendly energy sources. Generating electric energy using wind turbines is one of the methods that has gained widespread, ... -
Merketokt, grønlandssel i Svalbardområdet [25/5 - 12/6, 2010]
Nilssen, Kjell Tormod; Poltermann, Michael; Shafikov, Ilias ([Toktrapport/Havforskningsinstituttet];Nr. 4 - 2010, Working paper, 2010) -
Potensielle effekter av havvindanlegg på havmiljøet
de Jong, Karen; Steen, Henning; Forland, Tonje Nesse; Nyquist, Daniel; Utne-Palm, Anne Christine; Nilssen, Kjell Tormod; Albretsen, Jon; Falkenhaug, Tone; Biuw, Martin; Buhl-Mortensen, Lene; Sivle, Lise Doksæter (Rapport fra havforskningen;2020 - 42, Research report, 2020)I denne rapporten er dagens kunnskap om potensielle effekter av vindkraftanlegg på det marine økosystemet oppsummert, med fokus på oppdatert kunnskap siden forrige rapport fra 2008. Potensielle fysiske endringer er beskrevet ... -
Preliminary data on feeding and condition of Barents Sea harp seals (Phoca Groenlandica) throughout the year
Nilssen, Kjell Tormod; Haug, Tore; Potelov, Vladimir; Timoshenko, Yuri (ICES CM Documents;1992/N:5, Working paper, 1992)In order to evaluate the ecological role of the most abundant seal species in the Barents Sea, the harp seal Phoca groenlandica, field studies have been carried out in September 1990, in February, March/April, June and ... -
Preliminary results of the joint Russian-Norwegian airborne research of the Barents Sea in September-October 2002
Zabavnikov, V.B.; Chernook, V.I.; Zyryanov, S.V.; Egorov, S.A.; Nilssen, Kjell Tormod; Frie, Anne Kirstine; Corkeron, Peter; Lindstrøm, Ulf (IMR/PINRO joint report series, Research report, 2002)The conclusions given below are preliminary and will be refined after detailed processing of materials and data gained. 1. Large aggregations of harp seals were observed mostly in the near ice-edge zone, which was north ... -
Prey consumtion by Barents sea harp seals in the period 1990-2005
Lindstrøm, Ulf; Nilssen, Kjell Tormod; Haug, Tore (ICES CM documents, Working paper, 2006)The Barents Sea ecosystem has experienced major fluctuations in species abundance in the past 20-30 years. The mechanisms behind these fluctuations are complex and arise from numerous interactions between species and the ... -
Recent age compositions and aberrant migration patterns of the Barents Sea stock of harp seals Phoca groenlandica
Nilssen, Kjell Tormod; Haug, Tore; Øritsland, Torger; Lindblom, Lotta; Kjellqwist, Sten Anders (ICES CM Documents;1996/N:4, Working paper, 1996)Since 1978, and in particular in 1986-1988, large numbers of harp seals Phoca groenlandica have invaded coastal waters of North Norway during winter and spring. After 1988 the harp seal invasions have been restricted to ... -
Recent Harp and Hooded Seal Pup Production Estimates in the Greenland Sea Suggest Ecology-Driven Declines
Biuw, Martin; Øigård, Tor Arne; Nilssen, Kjell Tormod; Stenson, Garry; Lindblom, Lotta; Poltermann, Michael Tino; Kristiansen, Martin; Haug, Tore (Peer reviewed; Journal article, 2022)Pup production of the Greenland Sea populations of harp (Pagophilus groenlandicus) and hooded (Cystophora cristata) seals were estimated based upon aerial surveys in March 2018. One fixed-wing aircraft was used for large-area ... -
Recent studies of the distribution and abundance of grey seals (Halichoerus grypus) in north Norway, and their possible influence on parasitic infestations in fish
Haug, Tore; Henriksen, Gunnar; Nilssen, Kjell Tormod; Ørjebu, Alfred (ICES CM Documents;1991/N:2, Working paper, 1991)Distributions of grey seals Halichoerus grypus were studied during aerial and ground surveys in North Norway. Surveys were conducted from Lofoten to the Soviet border during the moult (March-April, Finnmark) and breeding ... -
Report from surveys to assess harp and hooded seal pup production in the Greenland Sea pack-ice in 2012
Haug, Tore; Nilssen, Kjell Tormod; Øigård, Tor Arne (Toktrapport/Havforskningsinstituttet;Nr. 1 - 2012, Working paper, 2012) -
Report From Surveys To Assess Harp And Hooded Seal Pup Production In The Greenland Sea Pack-Ice In 2022
Biuw, Martin; Nilssen, Kjell Tormod; Kristiansen, Martin; Lindblom, Lotta; Poltermann, Michael Tino; Haug, Tore; Johansson, Malin (Toktrapport;2022 - 7, Research report, 2022)Cruise no.: 2022703 : The 2022 survey of harp and hooded seal pup production in the Greenland Sea was carried out to obtain updated estimates to be used to assess current status of these two seal stocks. Since a similar ... -
Report from surveys to assess hooded and harp seal pup production in the greenland sea pack-ice in March - April 2007
Haug, Tore; Nilssen, Kjell Tormod; Øigård, Tor Arne ([Toktrapport/Havforskningsinstituttet];Nr. 9 - 2007, Working paper, 2007) -
Report of joint Russian/Norwegian aerial surveys in the Barents Sea in September 2001
Zabavnikov, V.B.; Nilssen, Kjell Tormod; Zcharikov, K. A.; Frie, Anne Kirstine (IMR/PINRO joint report series, Research report, 2002)The distribution of harp seals in the Barents Sea has been recorded based on incidental sightings from Norwegian and Russian research vessels, Norwegian fishing and coast guard vessels, from Russian aerial surveys (Haug ... -
Status for havertbestandens ungeproduksjon langs norskekysten i 2001-2003
Nilssen, Kjell Tormod; Corkeron, Peter; Haug, Tore; Skavberg, Nils Erik; Jenssen, Bjørn Munro; Henriksen, Gunnar (Fisken og havet, Research report, 2004)During September-October 2001-2003, registrations of grey seal (Halichoerus grypus) pups, including tagging, counting and staging of pups, were conducted along the Norwegian coast from Rogaland county in the south to ... -
Studies of minke whale (Balaenoptera acutorostrata) ecology in the northeast Atlantic: Description of the 1993 scientific catch operations and preliminary results from stomach analyses and resource surveys
Haug, Tore; Lindstrøm, Ulf; Nilssen, Kjell Tormod; Røttingen, Ingolf (ICES CM Documents;1994/N:14, Working paper, 1994)Ecological studies of the Northeast Atlantic minke whale (Balaenoptera acutorostrata), initiated in 1992, were continued in 1993. The field work was carried out in spring (15 April-15 May), summer (15 June-12 July) and ... -
Studies of minke whale (Balaenoptera acutorostrata) ecology in the northeast Atlantic: Preliminary results from studies of diet and food availability during summer 1992
Haug, Tore; Gjøsæter, Harald; Lindstrøm, Ulf; Nilssen, Kjell Tormod (ICES CM Documents;1993/N:7, Working paper, 1993)Stomach content samples from 92 minke whales Balaenoptera acutorostrata, caught during scientific whaling operations in July-August 1992, were collected in five selected areas in Norwegian and adjacent waters. Preliminary ... -
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. ...