The crabs have either NEVER been there before, just migrated there or were SEEDED there recently by the “Most Dangerous Catch” gang, or have been there all along.
Crabs are coldblooded; meaning that when it gets too cold, when it’s winter in the southern hemisphere, they merely go dormant?
Somebody is blowing smoke. And I don’t care for smoked crab.
I read a fascinating article re an edible species of crab native only to Alaskan waters was introduced to the area around northern Finland.
No one knows how they got there but they have been there for a few years.
Nicely done!