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Atlantic salmon is a well-studied species, but there are still mysteries of where they reside in the ocean and what impacts their marine survival. ATLANTIC SALMON AT SEA - factors affecting their growth and survival (SeaSalar) is a research program where research institutions join forces to increase the knowledge on Norwegian salmon at sea.

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Photo: Eva B. Thorstad
30.06.2021

Atlantic salmon in a rapidly changing environment - facing the challenges of reduced marine survival and climate change

The global scale of climate change, altered ocean ecosystems and reduced sea survival make these threats to Atlantic salmon difficult - but not impossible - to address. We review impacts and suggest management options in a new article.
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Left: Migrations of Atlantic salmon tagged in eight different geographic areas. Release locations post-tagging are shown by squares (from 11 northeast Atlantic river catchments and at-sea at Western Greenland). Crosses show the pop-up location of the tags. Right: Area use during the ocean migration of tagged Atlantic salmon, shown with lines and shades with colours representing salmon from seven different areas. Photo: Audun H. Rikardsen.
13.06.2021

Redefining the oceanic migration of Atlantic salmon

Many surprises from tagging Atlantic salmon with pop-up satellite tags. Further north and east than we thought, more use of oceanic fronts, deeper dives and staying in colder water.
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Atlantic salmon, Norwegian spring spawning herring and Atlantic mackerel are pelagic fish that feed in the open ocean. Photos Audun Rikardsen, UiT (Atlantic salmon) and Erling Svensen, Institute of Marine Research (Atlantic mackerel)
26.01.2021

Do salmon post-smolts compete for food with mackerel or herring?

We looked at potential competition between salmon and mackerel or herring, in a new publication. There was no evidence to support the hypothesis that lower marine survival for salmon in recent years can be explained by competition with herring or mackerel.
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