From The Financial Times, October 4, 2016:
British scientists identify clear distinctions in the sounds made by European and American fish
The cod is best known for being deep-fried in batter and placed on a pile of chips to make up the UK’s most famous dish. But British scientists are about to probe a lesser-known feature of the white-fleshed fish: its regional accents.
“They’re very different,” says Professor Steve Simpson, a marine biologist from the University of Exeter who specialises in the field of bioacoustics.
Underwater recordings of the peculiar grunts made by American and European cod reveal obvious distinctions, he says. The Americans make “quite a staccato, banging, bop, bop, bop sound” while the others do more of a “deep, rumbling growling”.
Prof Simpson thinks cod around Britain could have developed localised accents, too, because they gather in the same spawning grounds generation after generation. But no one knows for sure, as the research has yet to be done....
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