Fishery Boom or Bust?

Invasive King crabs have reached North Yorkshire, raising concerns about the consequences for the smaller native Brown crab and other species (https://www.theguardian.com/environment/2022/jan/28/king-crabs-invade-uk-waters-threatening-native-species). The King crab is actually a native of North America. In the 1960's, it was deliberately introduced into Russian waters to establish a new lucrative fishing industry. The King crab's populations boomed in the cold seas and the species then introduced itself (it has highly mobile larvae) into the waters of neighbouring Norway. Norwegian crab fisheries also boomed. Although the arrival of the King crab into UK waters has raised conservation concerns, it has delighted London restaurants. Chefs are reportedly snapping them up!