Zak Smith : Did you know that buying American fish could save a whale ? Smith : Much of wild - caught foreign fish product sold in U.S. endanger marine mammals . He says since 90 % of fish sold in the U.S. is imported , consumers have a say . But for decades the U.S. has failed to enforce this law . Smith : Some foreign fisheries have safer methods to avoid catching dolphins , too .
Zak Smith : Did you know that buying American fish could save a whale ? Smith : Much of wild - caught foreign fish product sold in U.S. endanger marine mammals . He says since 90 % of fish sold in the U.S. is imported , consumers have a say . Smith : Some foreign fisheries have safer methods to avoid catching dolphins , too .