Norwegian and Swedish researchers completely disagree about pike Is pike a useful or harmful species? A new study is sounding the alarm that there are too few predatory fish in the Baltic Sea.
This shark postpones having sex until it is over 100 years old Not that strange perhaps, now that we know how long the mysterious Greenland shark can live.
Fatty acid composition in the salmon fillet can be measured in seconds SHARE YOUR SCIENCE: Norwegian farmed salmon is a good source of the healthy fatty acids, found in fatty fish.
Herring roe will be used in medicine to treat psoriasis Medicines are not just chemistry - many come from animals and plants.
Electric fence against salmon lice An electric fence keeps the salmon healthy. But we will never find a lasting solution to salmon lice, says one researcher.
Farmed salmon need zinc to avoid getting sick. But zinc in the ocean harms the environment Either farmed fish health or the environment suffers.
Researchers tracked a bluefin tuna’s 15 000 kilometre swim across the Atlantic and back A 250 kilo Atlantic bluefin tuna had a satellite tag attached to its back in the autumn of 2020. A year later, the researchers located the same tuna again outside Florø, Norway’s westernmost town. It had swum the equivalent of more than a third of the way around the equator.
Fish in the Arctic deformed by tiny amounts of oil contamination Polar cod are very sensitive to crude oil contamination, a new study shows.
Noise caused sea lice to eat and reproduce less This parasite costs Norwegian salmon farming almost 500 million euros each year. Could noise be the solution? Sound-emitting speakers weaken the lice's appetite. They fall off more easily and their reproduction drops dramatically, according to experiments in a Norwegian fjord.
This fish grunts when it is ready to have sex SHARE YOUR SCIENCE: Have you ever lain on a seafront jetty fishing, perhaps with a cracked mussel on the hook? Then you have probably seen this colourful little fellow, the corkwing wrasse. The next time you see it, you should also prick up your ears
Food fraud: Do you really know what fish species you are eating? When you buy fish from a store, or when you are served a fish dish in a restaurant, you expect to get what the label says or to eat what you ordered. Unfortunately, the reality is sometimes far from expectations.
Matured cheese and ham - yes please, but what about matured clipfish? A Norwegian google search for "matured food" displays results for balsamic vinegar, cured meat, fermented trout and many types of cheese. Why isn’t clipfish on the list?
Would you like salt fish or klippfisk for dinner today? That’s really something you should have thought of yesterday or even the day before.
It matters who your mother is, even for fish OPINION: New research could result in both bigger and better farmed fish.
How cod took over in the icy Arctic waters Codfish can eat prey right up under the sea ice in winter, thanks to an antifreeze in their blood.
Can salmon lice end up on your dinner plate? Are there any parasites on the fish you buy in the store?
Sports drinks from fish heads In a couple of years you might drink some fish parts after exercising at a gym.
Goby behaviour says much about sexual selection One fish off the coast of central Norway has set a record for the number of female mates it had. And that’s not all.
An in-trawl camera for fish A cod swims right past the camera. These images could make it easier to set fishing quotas.
Fish in drug-tainted water see some benefits Swedish freshwater perch have been seen to thrive in water contaminated by anti-anxiety medications. Researchers think most studies, which look solely at the negative aspects of pharmaceutical pollution, could be missing some perks for perch.
Missing link found on sharks On any visit to a rocky seashore, you are likely to spot barnacles, unoffendingly stuck to hard surfaces. But barnacles in a fjord in Norway have become parasites that eat fish through feeding stems.
Why Japanese connoisseurs love Norwegian mackerel There's nothing fishy about it: an advanced MRI machine explains exactly why the Japanese prefer Norwegian mackerel. The secret is in the fat.
Fishing: Big increase in catch-and-release Anglers have in the last few years become steadily more likely to release their catches after reeling them in. Most of these fish survive the ordeal, but it is far from painless.
Puffin chicks die of hunger For seven years now, Atlantic puffins have been abandoning chicks and eggs in their nesting colonies because they cannot find enough food. The ocean is teeming with mackerel which consume the small fish that puffins normally feed to their offspring.
Farmed salmon are as fertile as wild salmon The sperm from farmed male salmon are just as likely as the sperm of wild salmon to succeed in fertilising wild salmon eggs, experiments have shown. Researchers recommend that farmed salmon be made sterile.
More fish found deeper in the ocean The amount of fish in the world is being reassessed upwards. Some ten billion tonnes of fish that live at depths down to a kilometre are not fished at all. A University of Bergen professor thinks this biomass will be much more important for humankind in the future.
Spawning cod packed with vitamins Cod migrate from the Barents Sea to the Lofoten Islands in North Norway to spawn every winter. The fishing season for these large spawning cod, called skrei in Norwegian, is currently open. A traditional North Norwegian serving of the fish is a super source of vitamin D.
Clumsy clown of the seabed The spiny lumpsucker is too sluggish to avert the slow hand of a diver, yet it manages to catch some of the most important swimmers in the Arctic Ocean.
Creatures from the deep and cold Atlantic sea Check out what swims around a thousand metres down off Greenland.
Larger offspring when fish pick own mates It might not be so advantageous for us to help endangered animal species by selecting what we consider suitable mates for them.
Want some week-old fish? Most of us would refrain from buying fresh fish that was caught more than three days ago. But if we don’t know the day of catch, we gladly consume fish that is much older.
Standard research fish lacks a standard diet Zebrafish have been used as a research standard to help scientists expand our understanding of everything from skin cancers to cardiovascular disease. But one Norwegian researcher cautions that research that relies on zebrafish might be less reliable because the fish are not fed a standardised diet.
Prospecting herring waste The messy leftovers from herring processing could be put to better use. Enzymes from the fish parts can soon wind up in detergents or even in juice.
Omega-3 supplements give no MS relief Norwegian scientists hoped to confirm an alleviating effect of omega-3 supplements on multiple sclerosis patients. They found no connection whatsoever.
Old spawners important for salmon rivers Super-veterans among salmon are keys to the survival of river stocks in hard times.
Farmed salmon retains good fats Norwegian farmed salmon is still a good source of long-chain omega-3 fatty acids, even though these fish are now fed more vegetable oils than previously.
The mysterious Arctic skate A hundred-kilo barn door with two sharp “penises” glides above the seabed in Norwegian fjords, prowling for a female. Meet the Arctic skate, an ancient and secretive fish.
Low carb diets rocked in the Stone Age The Neolithic population of Northern Europe maintained a diet based mainly on hunting and fishing even after agriculture became well established.