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Tore Haug
University of Tromsø
184Publications
34H-index
3,133Citations
Publications 184
Newest
#1Sue E. Moore (Office of Science and Technology)H-Index: 38
#2Tore HaugH-Index: 34
Last.Garry B. Stenson (Fisheries and Oceans Canada)H-Index: 24
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Abstract Biophysical changes in marine ecosystems of the Arctic and subarctic sectors of the Atlantic and Pacific are now evident, driven primarily by sea ice loss, ocean warming and increases in primary productivity. As upper trophic species, baleen whales can serve as sentinels of ecosystem reorganization in response to these biophysical alterations, via changes in their ecology and physiological condition. This paper is the first to review baleen whale ecology in high-latitude marine ecosyste...
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#2Ulf LindstrømH-Index: 14
Last.Tore HaugH-Index: 34
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ABSTRACTTo obtain knowledge of feeding habits and prey consumption of grey seals, data were sampled in selected areas along the Norwegian coast. Prey were recovered from 182 grey seal gastrointestinal tracts and 199 faecal samples, collected during1999–2010 in Finnmark, Nordland and Rogaland counties. The most important prey were saithe Pollachius virens, cod Gadus morhua and wolffish Anarchichus spp. Wolffish was mainly eaten by seals ≥ five years old. Otherwise, the data did not suggest import...
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#1Gen Nakamura (Tokyo University of Marine Science and Technology)H-Index: 5
Last.Tore HaugH-Index: 34
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#1Andrea A. Cabrera (UG: University of Groningen)H-Index: 2
#2Elena Schall (UG: University of Groningen)
Last.Per J. Palsbøll (UG: University of Groningen)H-Index: 23
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The demography of baleen whales and their prey during the past 30 thousand years was assessed to understand the effects of past rapid global warming on marine ecosystems. Mitochondrial and genome-wide DNA sequence variation in eight baleen whale and seven prey species revealed strong, ocean-wide demographic changes that were correlated with changes in global temperatures and regional oceanographic conditions. In the Southern Ocean baleen whale and prey abundance increased exponentially and in ap...
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#2Christian LydersenH-Index: 47
Last.Kit M. KovacsH-Index: 3
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Identifying environmental characteristics that define the ecological niche of a species is essential to understanding how changes in physical conditions might affect its distribution and other aspects of its ecology. The present study used satellite relay data loggers (SRDLs) to study habitat use by Northeast Atlantic hooded seals (N = 20; 9 adult females, 3 adult males, and 8 juveniles). Three different methods were used in combination to achieve maximum insight regarding key foraging areas for...
3 CitationsSource
#1Ketil Malde (University of Bergen)H-Index: 13
Last.Kevin A. Glover (University of Bergen)H-Index: 27
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In the marine environment, where there are few absolute physical barriers, contemporary contact between previously isolated species can occur across great distances, and in some cases, may be inter-oceanic. An example of this can be seen in the minke whale species complex. Antarctic minke whales are genetically and morphologically distinct from the common minke found in the north Atlantic and Pacific oceans, and the two species are estimated to have been isolated from each other for 5 million ye...
5 CitationsSource
#2Martine BérubéH-Index: 20
Last.Per J. PalsbøllH-Index: 23
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The minke whale (Balaenoptera acutorostrata) is a globally-distributed species whose population ecology is poorly understood. Most knowledge about minke whale populations, including gender differences, originates from historical data collected during commercial harvests. Here we present results from an investigation of the population structure of minke whales along the north shore of the Gulf of St. Lawrence in Quebec, Canada. Our methods involved the review of 5,000 photographs and the genetic ...
#1Tore HaugH-Index: 34
#2Stig Falk-PetersenH-Index: 51
Last.Anette Wold (NPI: Norwegian Polar Institute)H-Index: 15
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ABSTRACTThe objectives of this study were to explore trophic levels and possible diet overlap between harp seals (Pagophilus groenlandicus) and common minke whales (Balaenoptera acutoroostrata) in the Barents Sea using stable isotopes of nitrogen (δ15N) and carbon (δ13C) and fatty acid analyses, and to explore the energy pathways from the plankton to the top predators. Blubber and muscle samples from 93 harp seals and 20 minke whales were collected in the southern Barents Sea in May 2011. The st...
1 CitationsSource
#2Simon BerrowH-Index: 19
Last.Per J. PalsbøllH-Index: 23
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#1Tore HaugH-Index: 34
#2Bjarte BogstadH-Index: 20
Last.Knut SunnanåH-Index: 6
view all 14 authors...
Abstract Global warming drives changes in oceanographic conditions in the Arctic Ocean and the adjacent continental slopes. This may result in favourable conditions for increased biological production in waters at the northern continental shelves. However, production in the central Arctic Ocean will continue to be limited by the amount of light and by vertical stratification reducing nutrient availability. Upwelling conditions due to topography and inflowing warm and nutrient rich Atlantic Water...
34 CitationsSource
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