August

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.

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.

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

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. 

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.

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.

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.