Kristine Bonnevies hus
Summer often means it is field season for biologists, and time to get your hands dirty! Here I will give my view of what it is like to be on board of a research vessel in the North Sea, participating in a scientific survey of the fish and invertebrates living on the sea floor.
Everyone who is working or living around the Baltic Sea has heard of the round goby. Fishermen swear on them because they have become more and more abundant in their catch replacing other fish species. Round gobies originally come from the Ponto-Caspian region and amongst others in the Baltic, they are present as a non-indigenous species, meaning that they have colonized and spread outside their native range. Theory is that they were introduced through the ballast water of ships.