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.

What is the expected decline in production of farmed mussels with a one degree increase in temperature?

What percentage decline in farmed mussels is expected with a four degree increase in temperature?

How much deeper are common North Sea species like cod and sole swimming each decade?

Which species were found to be increasingly abundant as temperatures rise?

What has been the northward range extension of the bib in the last two decades?