Blar i forfatter "Bengtsson, Oskar"

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    • Marine diets of anadromous Arctic char (Salvelinus alpinus) and pink salmon (Oncorhynchus gorbuscha) in Svalbard, Norway 

      Bengtsson, Oskar; Lydersen, Christian; Christensen, Guttorm; Węsławski, Jan Marcin; Kovacs, Kit M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-22)
      During summer, native anadromous Arctic char (Salvelinus alpinus) and the alien species pink salmon (Oncorhynchus gorbuscha) now coexist in marine environments in Svalbard, following the introduction of the latter in the Barents Region. To investigate potential dietary competition between these two salmonid species, stomach contents from Arctic char (n=301) and pink salmon (n=28) were sampled from ...

    • Ringed seal (Pusa hispida) diet on the west coast of Spitsbergen, Svalbard, Norway: during a time of ecosystem change 

      Bengtsson, Oskar; Lydersen, Christian; Kovacs, Kit M.; Lindstrøm, Ulf (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-13)
      Global warming is causing Atlantification of water masses and concomitant changes in food webs in the Barents Sea region. To determine whether changes that have been documented at lower trophic levels are impacting the diet of ringed seals (<i>Pusa hispida</i>) gastrointestinal tracts (GITs) from 99 coastal-feeding ringed seals, collected in western Spitsbergen, Svalbard, were analysed via identification ...