Bad human activities (such as living) are killing all the fish worldwide, so environmentalists have said.
“Species of fish such as plaice and cod are on the increase under the waves of the North Sea, a Danish study has found.
“The research, conducted by DTU Aqua at the Technical University of Denmark, found a significant increase in numbers of large fish in the northeast Atlantic.
“Results of the study show that, since the turn of the century, the biomass of 25 different species included in the study doubled. Certain species, including plaice, cod and hake, tripled or even quadrupled over the period.”