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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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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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Results in this study suggest that 23-mm long PIT tags can be used to tag fish down to 13 cm total length, and 12-mm long PIT tags can be used to tag fish down to 7 cm total length
29.10.2020

Reliable survival estimates based on tagged fish depend on using small enough tags

PIT-tags are often used to study marine mortality in salmon. It is important that the tagging itself does not increase mortality. New review publication assessed tagging effects based on available studies.
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Lea Hellenbrecht, with new master degree from the University of Bergen and Institute of Marine Research. Photo: Private
08.10.2020

Master thesis with exciting results on marine feeding of young salmon

Lea Hellenbrecht successfully defended her master thesis at the University of Bergen in the beginning of September, on feeding of wild Atlantic salmon post-smolts in Norwegian fjords.
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