Stuck on stupid: Tropical fish allegedly swimming north because of global warming - Telegraph

Tropical fish are heading towards the cooler waters of the North pole, according to the results of a new study on the impact of climate change on fish.

Scientists looked at the likely impact of a warming climate on the distribution of more than 1,000 species of fish around the globe.

They found fish will shift their distribution by an average of more than 40km each decade. While some fishing grounds will become richer, many species in cooler climates will go extinct.

Developing countries in the tropics will suffer the biggest loss as their fish swim north to cooler waters with Nordic countries, such as Norway, ending up with the lion's share.

Florida, March '08: Freeze lethal for tropical fish stocks

Freezing winter weather dealt a devastating blow to some of southern Hillsborough County's tropical fish farms, with seven losing more than half their stock.

Statewide, about 25 percent of the industry's inventory died after temperatures dropped in early January, the Florida Tropical Fish Farms Association said.

Florida, Feb '09: Freezes Deal Heavy Blow To Hillsborough's Fish Farms

TAMPA - The back-to-back blasts of cold last week hit Hillsborough County's tropical fish farmers hard, costing them more than $1.7 million in dead aquarium fish and snails, according to preliminary reports.
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Temperatures fell to the high 20s on Thursday and Friday mornings in eastern and southern Hillsborough County, home to most of the farms. At some farms, the freeze wiped out more than half of the brood of tropical fish.