Browsing NIVA Open Access Archive by Author "Pedersen, Torstein"
Now showing items 1-5 of 5
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Can multitrophic interactions and ocean warming influence large-scale kelp recovery?
Christie, Hartvig C; Gundersen, Hege; Rinde, Eli; Filbee-Dexter, Karen; Norderhaug, Kjell Magnus; Pedersen, Torstein; Bekkby, Trine; Gitmark, Janne Kim; Fagerli, Camilla With (Journal article; Peer reviewed, 2019)Ongoing changes along the northeastern Atlantic coastline provide an opportunity to explore the influence of climate change and multitrophic interactions on the recovery of kelp. Here, vast areas of sea urchin‐dominated ... -
Community structure of deep fjord and shelf benthic fauna receiving different detrital kelp inputs in northern Norway
Ramirez-Llodra, Eva; Pedersen, Torstein; Filbee-Dexter, Karen; Hauquier, Freija; Guilini, Katja; Mikkelsen, Nina; Borgersen, Gunhild; van Gyseghem, Margo; Vanreusel, Ann; Vilas, Daniel (Peer reviewed; Journal article, 2021)Kelp forests produce large amounts of macroalgal detritus, ranging from whole plants to small particles (1 mm). The role of this kelp detritus in fueling deep-sea communities adjacent to healthy kelp forests was investigated ... -
Future trajectories of change for an Arctic deep-sea ecosystem connected to coastal kelp forests
Vilas, Daniel; Coll, Marta; Pedersen, Torstein; Corrales, Xavier; Filbee-Dexter, Karen; Wernberg, Thomas (Peer reviewed; Journal article, 2021)Environmental stressors related to climate change and other anthropogenic activities are impacting Arctic marine ecosystems at exceptional rates. Within this context, predicting future scenarios of deep-sea ecosystems and ... -
Predation mortality from ambush and cruising predators on newly-settled 0-group gadoids
Pedersen, Torstein; Strand, Hans Kristian; Christie, Hartvig C; Moy, Frithjof (Peer reviewed; Journal article, 2020)We investigated predation from an ambush predator (shorthorn sculpin) and two cruising predators (Atlantic cod and saithe) on bottom-settled 0-group cod and saithe juveniles in a fjord in northern Norway. Stomach contents ... -
Synergism between cruising cod and ambush sculpin predators on 0-group gadoids is modified by daylight cycle and presence of aggressive wolffish
Strand, Hans Kristian; Pedersen, Torstein; Christie, Hartvig C; Moy, Frithjof Emil (Peer reviewed; Journal article, 2020)Shorthorn sculpin (Myoxocephalus scorpius) and large cod (300–400 g body weight) are important predators on newly settled 0-group cod (Gadus morhua) and saithe (Pollachius virens) in Porsangerfjorden in northern Norway. ...