“The massive nets of an industrial midwater trawling fleet comb through the water above the ocean floor in search of Atlantic mackerel and herring, leaving little in their wake. Among the casualties are millions of river herring and shad, both forage fish that are a vital food source for mid-Atlantic predator fish, marine mammals and sea birds. As victims of “bycatch,” river herring and shad populations have dwindled to less than 5 percent of their historic levels.”
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Fonte: Talking Fish –10 de fevereiro de 2016