Bering Ecosystem Change
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The Live from IPY! event on March 20, 2008, with PolarTREC teacher Craig Kasemodel and researchers aboard the USCGC Healy, in the Bering Sea is now archived. To access the archive, click here.


Craig Kasemodel is a science and technology teacher at the Central Middle School of Science in Anchorage, Alaska. Mr. Kasemodel attended the University of Wisconsin-Madison and Montana State University and holds degrees in Economics, International Relations, and Fish & Wildlife Management, and spent several years conducting wildlife biology research in rural Alaska and Montana. Mr. Kasemodel enjoys teaching other teachers how to incorporate technology in their classrooms and introducing students to science. He is active with the ALISON Project and recently developed a freshwater science class for students to conduct water quality and stream assessments. In his spare time, he enjoys building computers and websites, fly-fishing, hiking, skiing, and spending time outdoors with his wife and chocolate lab. He is excited to be part of PolarTREC and to join the crew on the Healy with the hope of increasing awareness of climate change and polar science. Learn more about Mr. Kasemodel at his classroom website.
Lee Cooper, of the University of Maryland, is the chief scientist on the first of several science cruises that will take place aboard the USCGC Healy in 2008. Dr. Cooper organizes the science mission and coordinates the work of approximately 35 other scientists studying sea ice, walrus distributions, sea floor processes, biological communities, water chemistry, and marine mammal and bird observations. Dr. Cooper works at the Chesapeake Biological Laboratory in Solomons, Maryland. His research specialty is biogeochemistry and he presently studies biological changes in the northern Bering Sea. Dr. Cooper is working with a PolarTREC teacher to share Bering Sea research with the public and K-12 classrooms.


A diverse team of researchers will be participating in the first of three research cruises this spring and summer aboard the USCGC Healy in support of the Bering Sea Ecosystem Study (BEST) and the Bering Sea Integrated Ecosystem Research Program (BSIERP). Check out the logbook at http://bsierp.nprb.org/cruises/current.html
Scientists onboard the ship will be documenting late winter ocean conditions, studying the biological communities found in sea ice, examining the early spring plankton bloom, and investigating light penetration through open water and ice cover. Additionally, researchers will be examining the benthic communities living on the seafloor as will as observing an important benthic predator, the walrus. The region of the Bering Sea where the team will be working is biologically rich and supports highly productive ecological communities of bivalves, gastropods, and polychaetes. These benthic communities have been changing over the past several decades, perhaps as a result of competing fish species moving north as waters warm.


The team will travel on the USCGC Healy to the sampling area in the northern Bering Sea. The Bering Sea lies to the west of Alaska and to the east of Russia. The team will depart from and return to the port of Dutch Harbor, Alaska, which is in the Aleutian Islands. During the cruise they will sample the biologically diverse waters as they move northward toward Saint Lawrence Island.

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Benthic:
Benthic organisms live on or in the bottom sediments of a sea or lake.
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Biogeochemistry:
The study of processes in the natural environmental using interdisciplinary tools from biology, chemistry and geology.
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Bivalves:
A group of mollusks, typically with two-part symmetrical shells.
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Gastropods:
A group of mollusks that travel on a single, muscular foot and often secrete a one-piece shell for protection. Snails, slugs, limpets and abalones are all gastropods.
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Icebreaker:
An icebreaker is a special purpose ship or boat designed to move and navigate through ice-covered waters.
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Polychaetes:
A large and diverse group of segmented marine worms. All possess an array of bristles on their many leg-like parapodia.








