Browsing Brage IMR by Author "Lindstrøm, Ulf"
Now showing items 1-20 of 39
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A minimal Barents Sea ecosystem model from first principles.
Planque, Benjamin; Lindstrøm, Ulf (Conference object, 2011) -
A minimal Barents Sea ecosystem model from first principles.
Planque, Benjamin; Lindstrøm, Ulf (Conference object, 2011) -
A review of the battle for food in the Barents Sea: cod vs. marine mammals
Bogstad, Bjarte; Gjøsæter, Harald; Haug, Tore; Lindstrøm, Ulf (Journal article; Peer reviewed, 2015-03-25)Cod, harp seal and minke whale are the main top predators in the Barents Sea ecosystem. In the last decade, the abundance of cod has increased considerably, and is at a record high level. In spite of this, the growth and ... -
A risk assessment of the effects of mercury on Baltic Sea, Greater North Sea and North Atlantic wildlife, fish and bivalves
Dietz, Rune; Fort, Jérôme; Sonne, Christian; Albert, Céline; Bustnes, Jan Ove; Christensen, Thomas Kjær; Ciesielski, Tomasz Maciej; Danielsen, Jóhannis; Dastnai, Sam; Eens, Marcel; Erikstad, Kjell E; Galatius, Anders; Garbus, Svend-Erik; Gilg, Oliver; Hanssen, Sveinn Are; Helander, Björn; Helberg, Morten; Jaspers, Veerle; Jenssen, Bjørn Munro; Jónsson, Jón Einar; Kauhala, Kaarina; Kolbeinsson, Yann; Kyhn, Line A.; Labansen, Aili Lage; Larsen, Martin M.; Lindstrøm, Ulf; Reiertsen, Tone Kristin; Rigét, Frank F.; Roos, Anna; Strand, Jakob; Strøm, Hallvard; Søndergaard, Jens; Sun, Jiachen; Teilmann, Jonas; Therkildsen, Ole Roland; Thórarinsson, Thorkell Lindberg; Tjørnløv, Rune Skjold; Wilson, Simon; Eulaers, Igor (Peer reviewed; Journal article, 2020)A wide range of species, including marine mammals, seabirds, birds of prey, fish and bivalves, were investigated for potential population health risks resulting from contemporary (post 2000) mercury (Hg) exposure, using ... -
Arctic Marine Data Collection Using Oceanic Gliders: Providing Ecological Context to Cetacean Vocalizations
Aniceto, Ana Sofia; Pedersen, Geir; Primicerio, Raul; Biuw, Martin; Lindstrøm, Ulf (Peer reviewed; Journal article, 2020)To achieve effective management and understanding of risks associated with increasing anthropogenic pressures in the ocean, it is essential to successfully and efficiently collect data with high spatio–temporal resolution ... -
Comparative Modeling of Cod-Capelin Dynamics in the Newfoundland-Labrador Shelves and Barents Sea Ecosystems
Koen-Alonso, Mariano; Lindstrøm, Ulf; Cuff, Andrew (Peer reviewed; Journal article, 2021)The Atlantic cod (Gadus morhua) stocks in the Newfoundland-Labrador Shelves (NL) and Barents Sea (BS) ecosystems have shown divergent trajectories over the last 40 years. Both stocks experienced either an important decline ... -
Diet and food availability for Northeast Atlantic minke whales Balaenoptera acutorostrata
Haug, Tore; Lindstrøm, Ulf; Nilssen, Kjell Tormod; Røttingen, Ingolf; Skaug, Hans Julius (ICES CM Documents;1995/N:19, Working paper, 1995)Ecological studies of the Northeast Atlantic minke whale (Balaenoptera acutorostra) were carried out during spring (mainly April-May), summer (June-July) and autumn (AugustSeptember) in 1993 and 1994. Four small-type ... -
Diets of hooded seals in coastal and drift ice waters along the east coast of Greenland
Haug, Tore; Nilssen, Kjell Tormod; Lindblom, Lotta; Lindstrøm, Ulf (ICES CM documents, Working paper, 2005)To provide data on the feeding habits of hooded (Cystophora cristata) seals in the Greenland Sea, seals were collected for scientific purposes on expeditions with R/V”Jan Mayen”, conducted in the pack ice belt east of ... -
Distribution and number of marine mammals in the open Barents Sea and their connection with capelin and polar cod distribution
Zabavnikov, V.B.; Zyryanov, S.V.; Tereschenko, V.V.; Nilssen, Kjell Tormod; Lindstrøm, Ulf (IMR/PINRO Joint Report Series, Conference object, 2005)This paper presents the data on the character of distribution and the assessment of the number of marine mammals in the open part of the Barents Sea in autumn 2001-2004 by the results from PINRO’s aerial surveys using the ... -
Distribution and number of marine mammals in the open Barents Sea and their connection with capelin and polar cod distribution
Zabavnikov, V.B.; Zyryanov, S.V.; Tereschenko, V.V.; Nilssen, Kjell Tormod; Lindstrøm, Ulf (IMR/PINRO Joint Report Series, Conference object, 2005)This paper presents the data on the character of distribution and the assessment of the number of marine mammals in the open part of the Barents Sea in autumn 2001-2004 by the results from PINRO’s aerial surveys using the ... -
Distribution and number of marine mammals in the open Barents Sea and their connection with capelin and polar cod distribution [presentation]
Zabavnikov, V.B.; Zyryanov, S.V.; Tereschenko, V.V.; Nilssen, Kjell Tormod; Lindstrøm, Ulf (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Distribution and number of marine mammals in the open Barents Sea and their connection with capelin and polar cod distribution [presentation]
Zabavnikov, V.B.; Zyryanov, S.V.; Tereschenko, V.V.; Nilssen, Kjell Tormod; Lindstrøm, Ulf (IMR/PINRO Joint Report Series;2/2005, Conference object, 2005) -
Distribution of rorquals and Atlantic cod in relation to their prey in the Norwegian high Arctic
Solvang, Hiroko K.; Haug, Tore; Knutsen, Tor; Gjøsæter, Harald; Bogstad, Bjarte; Hartvedt, Siri; Øien, Nils; Lindstrøm, Ulf (Peer reviewed; Journal article, 2021)Recent warming in the Barents Sea has led to changes in the spatial distribution of both zooplankton and fish, with boreal communities expanding northwards. A similar northward expansion has been observed in several rorqual ... -
Effekten av nasjonale laksefjorder på risikoen for lakselusinfeksjon hos vill laksefisk langs norskekysten. Midtevaluering av ordningen med nasjonale laksefjorder
Bjørn, Pål Arne; Finstad, Bengt; Asplin, Lars; Johnsen, Ingrid Askeland; Nilsen, Rune; Serra-Llinares, Rosa Maria; Lindstrøm, Ulf; Helland, Ingeborg Palm; Berg, Marius; Harbitz, Alf (Rapport fra Havforskningen;Nr. 19-2013, Working paper, 2013) -
Fatty acids in harp seal blubber do not necessarily reflect their diet
Grahl-Nielsen, Otto; Haug, Tore; Lindstrøm, Ulf; Nilssen, Kjell Tormod (Journal article; Peer reviewed, 2011-03-28)The predator–prey relationship with respect to fatty acids (FAs) was studied in 57 harp seals Pagophilus groenlandicus and 16 potential prey species collected simultaneously in the northwestern Barents Sea in May–June 2006. ... -
Feeding in a heterogeneous environment: spatial dynamics in summer foraging Barents Sea cod
Johannesen, Edda; Lindstrøm, Ulf; Michalsen, Kathrine; Skern-Mauritzen, Mette; Fauchald, Per; Bogstad, Bjarte; Dolgov, Andrey V. (Journal article; Peer reviewed, 2012-07-03)Cod Gadus morhua are important predators in many ecosystems in the North Atlantic, but their ecological importance has diminished in many areas due to stock size reductions. In contrast, the Barents Sea cod stock is ... -
Functional relationship between harp seal body condition and available prey in the Barents Sea
Øigård, Tor Arne; Lindstrøm, Ulf; Haug, Tore; Nilssen, Kjell Tormod; Smout, Sophie (Journal article; Peer reviewed, 2013-06-12)The Barents Sea ecosystem has undergone substantial ecological fluctuations over the past 40 yr, including large variations in the abundance of capelin Mallotus villosus, herring Clupea harrengus, krill Thysanoessa sp. and ... -
Harp seal body condition and trophic interactions with prey in Norwegian high Arctic waters in early autumn
Haug, Tore; Biuw, Martin; Gjøsæter, Harald; Knutsen, Tor; Lindstrøm, Ulf; MacKanzie, Kirsteen M.; Meier, Sonnich; Nilssen, Kjell Tormod (Peer reviewed; Journal article, 2020)In September 2016, a marine ecosystem survey covered all trophic levels from phytoplankton to seals in the Arctic Ocean to the west and north of Svalbard. At the ice edge, 26 harp seals were sampled to assess whether recent ... -
Herring (Clupea harengus) as a key species in northeast Atlantic mink whale (Balaenoptera acutorostrata) diets
Lindstrøm, Ulf; Haug, Tore; Røttingen, Ingolf (ICES CM documents, Working paper, 1998) -
Humpback Whale (Megaptera novaeangliae) Song on a Subarctic Feeding Ground
Martin, Saskia C.; Aniceto, Ana Sofia; Ahonen, Heidi; Pedersen, Geir; Lindstrøm, Ulf (Peer reviewed; Journal article, 2021)Male humpback whales (Megaptera novaeangliae) are known to produce long complex sequences of structured vocalizations called song. Singing behavior has traditionally been associated with low latitude breeding grounds but ...