Mackerel Fishing Is Stirring Chaos in the North Atlantic | 水產百科網

2021年2月13日—TheNortheastAtlanticmackerelisasmallfishwithgreyorgreenish-bluescalesandtigerlikeblackstripesfrommouthtotail.Lackingaswim ...

The Northeast Atlantic mackerel is a small fish with grey or greenish-blue scales and tigerlike black stripes from mouth to tail. Lacking a swim bladder—the gas-filled organ that helps most fish move up and down in the water—the mackerel would sink and die if it ever stopped. So it is always on the move, looking for plankton, crustaceans, and other small fish. It travels in shoals that can be more than 100 feet deep and 600 feet wide, and sometimes, when this great nomadic army catches a glimmer of light, it can resemble an underwater version of the northern lights.

In recent years, the mackerel’s unceasing motion and radically increased abundance have taken it farther north, to Greenland or Svalbard, which lies between Norway and the North Pole, and northwest, to Icelandic waters. And when the fish turned up, the Icelanders took adva...