Researchers of IMARES leading the Dutch part of this year's North Sea herring acoustic survey and report from research vessel the Tridens. Yesterday morning, they were accompanied by a school of white-sided dolphins. There were about 10-20 of them hunting fish in the distance, but 3 dolphins started to swim along the ship for a while. Follow the researchers and read the blog.
Photo: White-sided dolphins (Lagenorhynchus acutus)
The researchers will be on board the Dutch Fisheries Research Vessel Tridens to survey the area on a systematic, predefined cruise track. The combined internationally coordinated effort will deliver an estimate of the herring stock size in the North Sea.