This tiny gadget can tell us all about how a farmed salmon is doing
Sick and injured farmed salmon are a problem, but researchers have recently developed an implant that uses sensors to gather information about the welfare of individual fish.
Fishing and fisheries
LOADING CONTENT
Early whaling eradicated species from local waters
Several whale species disappeared from Europe long before whaling became a major industry. Two of the most common species are no longer found here, and one of them is almost extinct.
Sludge from salmon hatcheries will become a sought-after resource
Fish faeces and residual feed recovered from salmon hatcheries may soon become a sustainable product. The salmon farming sector will be crying out for a solution to the forecast ‘feed squeeze’.
New guidelines for a greener seafood sector
The aquaculture sector can now download a set of guidelines containing 25 ideas about the circular use of plastics.
Listening to Leviathans
Nineteenth-century Norwegian technology helped bring large whale populations to the brink of extinction. Can 21st-century technology help save them?
Small snail looking to be big business
Researchers have succeeded in nurturing a small snail called periwinkles in the laboratory for the very first time and are hoping that this French delicacy might be the launch pad for a new, Norwegian aquaculture business.
Teaching the world how hydropower development can safeguard fish populations
SINTEF researcher Marcell Szabo-Meszaros is the man behind the international study ‘Hydropower and Fish – a Roadmap for Best Practice Management’, which offers guidelines on fish population protection in rivers to companies carrying out hydropower developments.
Learning to trace salmon lice
Is it only farmed fish that are responsible for spreading salmon lice larvae? Or is it also possible that wild salmon can infect farmed fish? This is what researchers will be trying to find out.
Professor wants to involve children in work
“A sense of community between generations will be key to ensuring sustainable coastal communities. The importance of children’s learning through work is underestimated,” says Professor Anne Trine Kjørholt.
The aquaculture sector is aiming at better plastic recycling
There is enormous potential in the aquaculture sector to generate circular economy initiatives when it comes to its use of plastics. But can these be made commercially viable? Researchers believe that they can.
Fish farming: this new vessel concept will assist open ocean aquaculture
The aim is to extract the most efficient performance from all the various vessels utilised by the aquaculture sector at facilities exposed to rough seas and strong currents. Researchers have been looking into all aspects of this issue.
21,000 FTEs employed in the Norwegian fishing fleet
The total contribution to wealth creation from the Norwegian marine fishing fleet in 2021 was NOK 32.8 billion, including ripple effects.
Breathing new life into waste industrial marine plastics
The fisheries and aquaculture sectors are major users of plastics. A research project has recently been launched to investigate how these plastics can be recycled and made into new products.
A vessel that ‘hand-picks’ its catch from the seabed
The Arctic Pearl is setting course for the Barents Sea in search of the shellfish delicacy Iceland scallop. It is the first and only vessel of its kind, crammed with new technology that may herald the start of a new era in bottom fishing.
Crowding-induced stress gives mackerel the blues
Researchers have succeeded in showing that mackerel turn blue when under stress. This new knowledge will better enable our fisheries to safeguard fish welfare and will optimise catch quality into the bargain.
Could cusk fish be the new cod?
Today we think of cusk as a bycatch species of little or no value. But our test panel came to quite a different conclusion.
In the future, Norwegian salmon can be fed with locally-sourced ragworms
Researchers had the crazy idea of feeding ragworms with locally-cultivated seaweeds. The results were as gold-edged as the worms themselves – a high-quality, locally-sourced and sustainable feed for farmed salmon.
Norwegian rivers need to be better protected
When hydroelectric power plants suddenly switch off the water, we risk killing fish fry and other living organisms in rivers. The regulations need to change, say scientists and anglers.
Combating marine waste and ghost fishing with new materials
Ghost fishing and plastic waste from the fisheries industry is becoming a major environmental problem. Can we address the issue by using degradable plastics? Scientists at a new research centre are aiming to find the answers and develop the systems we need.
The stag hunt – and why a circular economy is so difficult
The will is there. The technology is too. So why is only 2.4 per cent of the Norwegian economy circular?
Shedding light — on the polar night
The polar night is dark — if you’re a person. But not if you’re a krill or a seabird or a fish. In the first episode of NTNU’s new English-language podcast, 63 Degrees North, learn how researchers discovered that there’s more than enough light in the polar night for the tiny creatures who live there.
Why aren’t sea trout thriving anymore?
Sea trout numbers are declining in Norway and scientists don’t know why. They have studied the trout in two rivers in northern Norway’s Nordland county. Soon, sea trout along the entire Norwegian coast will be investigated.
Following sea trout minute by minute
Sea trout populations have declined sharply. Researchers have studied the life of sea trout by means of acoustic telemetry tags and listening stations. Now they know more about what we need to do to protect the sea trout population.
Six years into the ice — and beyond
The Arctic’s once impenetrable ice cap is melting away, with profound consequences for everything from ocean circulation patterns to fish numbers and diversity. The Nansen Legacy Project, including NTNU biologists, chemists and engineers, is working to better understand what these changes mean for the Barents Sea and the Arctic Basin