COLUMBIA, S.C. — Heaps of dead fish litter the decks of commercial trawlers each summer after boat captains pull nets from the ocean in their search for shrimp. Sucked into the expansive shrimp nets, small fish and other marine animals are the unfortunate victims of an industry that, for decades, has dragged the sea floor to scoop up the tasty crustaceans so many diners crave. But one conservation group says fishermen need to be more careful. Every year, tons of marine animals across the country are accidentally caught in fishing nets and killed – a wasteful occurrence that threatens to deplete marine life, according to a report this week by Oceana. Similar problems are found when…
