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Research News from the 2010 Field Season
07/23/2010 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Arctic Ocean, communicating, The Bering Sea & the Aleutian Islands, Alaska Marine Ecosystem, Marine Ecosystem science
Research updates on projects being worked on for the 2010 Field Season  MORE >>

Changing Arctic Sea Ice Patterns affect Movements and Habitats of Marine Mammals
02/01/2010 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Bowhead Whale, Gray Whale, Warlus, Arctic Ocean, Climate Change, Changing Arctic Sea Ice, Arctic Ocean, Alaska Marine Ecosystems, Marine Ecosystem Science
NOAA scientist Sue Moore reported at the 2010 Alaska Marine Science Symposium on a study that related the changes in Arctic sea ice extent with the movements and habitats of polar bears, walruses, and gray whales in the Pacific side of the Arctic region.  MORE >>

New Study Shows Mixed Effects of CO2 on Shell-building 12/4/09
12/04/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Climate Change, Ocean Acidification, Marine Ecosystem Science, ALaska Marine Ecosystems
A new study has yielded surprising findings about how the shells of marine organisms might stand up to an increasingly acidic ocean in the future. Under very high experimental CO2 conditions, the shells of clams, oysters, and some snails and urchins partially dissolved. But other species seemed as if they would not be harmed, and crustaceans, such as lobsters, crabs, and prawns, appeared to increase their shell-building.  MORE >>

Are the Earth's Oceans Hitting Their Carbon Cap? 11/19/09
11/23/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Climate Change, Carbon Cycling, Marine Ecosystem Science
The planet's oceans serve as a vital carbon sink however research shows that the oceans' ability to absorb man-made carbon may be dwindling  MORE >>

Sea Star Swells With Tides 11/17/09
11/23/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Marine Ecosystem Science, Climate Change, Sea Stars, Intertidal Community Ecology
A species of sea star (the ochre star, Pisaster ochraceus) has figured out a novel way of keeping cool on rocky shorelines. The animal literally soaks up chilly water during high tides to protect itself from the blazing temperatures that persist when the tide goes out.  MORE >>

NOAA Launches an Expanded World Ocean Database and a New Tide Predictor
11/23/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Marine Ecosystem Science, Ocean Data, Tide Prediction
The World Ocean Database 2009 is the largest, most comprehensive collection of scientific information about the oceans with records dating as far back as 1800. The 2009 database, updated from the 2005 edition, is significantly larger providing approximately 9.1 million temperature profiles and 3.5 million salinity reports. The 2009 database also captures 29 categories of scientific information from the oceans, including oxygen levels and chemical tracers, plus information on gases and isotopes that can be used to trace the movement of ocean currents.  MORE >>

Greenhouse gas leaking from Arctic Ocean floor 9/16/09
10/11/2009 | Marilyn Sigman, Alaska SeaGrant/MAP
Tags: Arctic Ocean, Climate Change, Marine Ecosystem Science, Methane Hydrates
Scientists have reportedthe presence of previously unknown sources of methane bubbling up from the Arctic Ocean seafloor north of Norway.  MORE >>