Warming oceans sees fish species moving north: study

The transcript discusses the impact of rising temperatures on marine life. Traditional cold water fish catches in southern Europe are declining. A one-degree temperature increase could reduce farmed mussel production by 50%, and a four-degree rise could lead to a 70% decrease. North Sea species like cod and sole are swimming deeper, while squid populations are growing. The bib fish has expanded its range northward by 342 kilometers over two decades due to warmer temperatures.

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