Sentences with phrase «fishery pingers»

For example, writes Scott Kraus, research director of the New England Aquarium's Edgerton Research Laboratory, at one mid-Atlantic shad fishery pingers drove away shad as well as porpoises even though the shad weren't supposed to be affected by the sounds.

Not exact matches

Two years ago, a report in Nature suggested that pingers, which emit periodic high - frequency underwater bursts, had markedly reduced the accidental catch of harbor porpoises in the Gulf of Maine's groundfish fishery.

He agrees with Kraus and his Duke University colleague Andrew Read that it's best to play it safe and run a trial at every fishery where pingers are under consideration.