"There's no question that the shallow-water fish are tracking our local version of global climate warming," said Tasmania, Australia-based Ronald Thresher, a fisheries biologist with the Commonwealth Scientific and Industrial Research Organization.
The faster growth, he
added, could make the near-surface fish more resilient to overfishing. (Related: "Warming Oceans Put Kink in Food Chain, Study Says" [January 30, 2007].)
By contrast, deepwater fish are growing 20 to 30 percent slower than they were 50 years ago.
Their slowing growth rates correlate with a long-term cooling of the deep waters.
The cause of the cooling trend is unclear.
But analysis of deepwater corals suggests it has been going on for centuries and may be independent of global warming, Thresher
said ... "
The unpredicted benefit to global warming.