Tag Archives: moving north

In Chesapeake Bay’s changing ecosystem, blue crab is king (and moving north)

In the face of an evolving ecosystem, experts agree many of the differences in Chesapeake Bay marine life can – at least in part – be attributed to a worldwide warming trend. Over the last three decades, water temperatures in the Chesapeake Bay have increased about 1.5 degrees Celsius, or about 2.7 degrees Fahrenheit, said Rom Lipcius, professor of marine science at the Virginia Institute of Marine Science. The change means populations of many native sea creatures in the Chesapeake have moved or expanded north in search of cooler water temperatures, and other non-native creatures have moved in. As the warming trend continues, experts say some marine species will thrive as others struggle to survive in the face of temperature, environment and predator and prey changes. “It’s not all bad news, and it’s not all good news,” said Jon Hare, science and research director for the National Oceanic and Atmospheric Administration’s Northeast Fisheries Science Center. “There are both winners and losers in this situation.” There have been a number of species, including blue crab, scup and black sea bass, that have shifted or extended northward along the Atlantic coast, said Hare. Read the story here 08:35

Atlantic cod pushing out Arctic relatives?

When I visited the AWI Biological Institute on the German North Sea island of Helgoland last year for a story on how climate change is affecting marine life, the Institute’s Director Karen Wiltshire mentioned to me that cod was disappearing from the waters around the island. The Atlantic cod, it seems, are moving north, [email protected] 20:03