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Result: (124) Showing 1 - 30

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New report: The ocean can supply six times more food

19.11.2019

The ocean can supply much of the food required to feed an ever growing world population, primarily through the sustainable expansion of marine aquaculture. But not without improved ocean management and new technology.

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Ocean Science Decade: From talk to action

12.11.2019

Peter Haugan of the Institute of Marine Research has been asked to chair the national expert committee that will set the course for the Norwegian contribution to the UN Decade of Ocean Science.

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75 percent fewer salmon lice with new type of sea cage

11.11.2019

Physically separating salmon from salmon louse larvae reduces infestation of salmon by 75 percent compared with a normal sea cage. This has now been scientifically demonstrated using a “snorkel” cage at a commercial fish farm.

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Researchers stumble upon previously undiscovered coral reef in western Norway

11.11.2019

They were testing methods to survey for corals when the IMR researchers discovered the “new” deep water coral reef Bukkarevet in the Hardangerfjorden threshold. 

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Oil spills can cause long-term damage to our marine ecosystems

29.10.2019

A new study by the Institute of Marine Research (IMR) shows that a major oil spill off the Lofoten and Vesterålen islands could produce long-term changes in the ecosystems in the Norwegian Sea and Barents Sea.

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Organic mineral supplements are better for fish and the environment

28.10.2019

If farmed salmon receive the minerals in their feed in organic forms, they need smaller amounts of them to grow big and strong. As a result, less of these minerals enter the environment.

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Sustainable fisheries: Commitments are important, but cannot replace laws and institutions

23.10.2019

The Institute of Marine Research has analyzed 182 Our Ocean commitments from the past five years. Overall, the commitments have mainly generated attention and funding. The direct impact on sustainable fisheries and management is less obvious.      

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Software revolutionises marine research

21.10.2019

Researchers used to enter their survey data into cumbersome spreadsheets. These days they have StoX – a free, open source program, developed at the Institute of Marine Research (IMR) that has now been documented in an international research journal.

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Bluefin tuna are hard to catch – marine scientists want to help

17.10.2019

Hard to catch, may overheat and can’t cope with rough seas – those are just a few of the challenges for fishers targeting the world’s biggest tuna.

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Alarm bells raised about ocean warming

25.09.2019

Today the UN’s Intergovernmental Panel on Climate Change (IPCC) is launching its special report on the oceans and cryosphere. Geir Ottersen, a scientist at the Institute of Marine Research (IMR) and one of the main authors of the report, is concerned about the changes taking place in the Arctic.

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The Arctic cod is facing problems as the ice disappears

25.09.2019

The Arctic cod, the Arctic cousin of the Atlantic cod, is a key species in the northern Barents Sea. The whole ecosystem may therefore be destabilised by the spawning grounds of the Arctic cod shrinking as a result of declining sea ice cover.

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Fish communities consolidate their move north

25.09.2019

Fish communities from southern Norway have consolidated their significant move north. The Barents Sea may become home to as many as 25 new species as a result of climate change.

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10 things you didn’t know about ice

25.09.2019

Where is the world’s oldest ice found? And what will happen if the Greenland ice sheet melts? Climate scientists Anne Britt Sandø and Vidar Lien have the answers.

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Haddock larvae have an internal compass

18.09.2019

In a magnetic tank in which researchers can make north become south, “baby” haddock swim northwest.

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Scientists uncover the ''home'' of bluefin tuna in the North Atlantic

12.09.2019

DNA testing reveals that the world’s biggest tuna cross the ocean frequently.

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Research centre lands a good catch

11.09.2019

Smart fishing gear, scientific publications and training new researchers are just a few of the achievements of the Centre for Research-based Innovation in Sustainable fish capture and Pre-processing technology (CRISP).

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How much fish do grey seals along the coast eat?

29.08.2019

By analysing their stomach contents and faeces, and multiplying the results by the number of grey seals in Norway, researchers estimated that they consume 8,000 tonnes of fish per year. Saithe, cod and wolffish were their favourite foods.

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Far more migrating baleen whales in the Atlantic than in the Pacific

27.08.2019

In the North Atlantic there are several hundred thousand baleen whales that migrate long distances, whereas in the North Pacific there are just a few hundred of them. That is the conclusion of a new study.

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Research continues into the mysterious cod at Jan Mayen

26.08.2019

We joined “Geir II” on a scientific fishing expedition to Jan Mayen, where significant numbers of spawning cod have been discovered recently.

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72 million tonnes of krill in Antarctic fishing grounds

22.08.2019

The data from the Antarctic krill expedition is ready. This is the first estimate of the krill population in the Southern Ocean fishery in 19 years. 

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Total collapse in food sources for the youngest cod along the south coast of Norway

19.08.2019

In 1999, researchers caught 50,000 of the juvenile cod’s favourite food in their beach seine. In 2018 that number had collapsed to 500.

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Crowding mackerel can affect the fillets

08.08.2019

In much the same way as humans, mackerel need their own personal space too. Crowding the mackerel during the catch process might have significant consequences when those mackerel end up on our dinner plate.

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Seismic surveys do not significantly harm Calanus finmarchicus

07.08.2019

Field experiments show that seismic activity does not harm this important species of zooplankton: not at all when the air guns are over ten metres away, and with a maximum of 30% higher mortality than controls even in close proximity.

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Researchers discovered leak from Komsomolets

10.07.2019

Researchers have documented a leak from the wreck of the Soviet nuclear submarine. However, it poses no risk to people or fish.

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Crowding mackerel can affect the fillets

08.08.2019

In much the same way as humans, mackerel need their own personal space too. Crowding the mackerel during the catch process might have significant consequences when those mackerel end up on our dinner plate.

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State of the Ocean 2019: Highlights from the IMR director's speech

12.06.2019

Climate change and the effects we are already witnessing were key topics in the first State of the Ocean speech by managing director Sissel Rogne.

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Johan Hjort: a marine research pioneer whose ideas still hold water

07.06.2019

One hundred fifty years have passed since the birth of Johan Hjort (1869-1948). Best remembered for his groundbreaking theory from 1914 on the natural fluctuations of fish stocks, Hjort paved the way for materials and methods that are used to this day, not least in climate studies.

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Aquaculture didn’t cause the algal bloom

28.05.2019

A review of figures showing the amount of aquaculture in the areas that are, or have been, affected by the harmful algal bloom suggests that it was probably not caused by aquaculture. On the other hand, it cannot be ruled out that emissions of inorganic nutrients from fish farms may prolong the bloom.

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Algal bloom: appears to be getting less toxic

27.05.2019

The bloom of the alga Chrysochromulina leadbeateri in northern Norway has now lasted a week. It’s impossible to say how long the alga will continue to create problems for farmed fish, but there are some indications that it is becoming less harmful.

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Why mainly farmed fish is killed by the algal bloom

27.05.2019

Wild fish can escape the deadly algal blooms, but farmed fish is held in cages. That is why the algae currently blooming in Northern Norway are lethal mainly to farmed salmon in the area.