Oceanographers produce first-ever images of entire cod shoals

Source: Science Daily

A team of oceanographers has journeyed to Norway — one of the last remaining regions of the world where cod still thrive — and used a synoptic acoustic system to, for the first time, illuminate entire shoals of cod almost instantaneously, during the height of the spawning season.

https://www.sciencedaily.com/releases/2018/11/181106150413.htm