Thirty scientists from NOAA’s
Alaska Fisheries Science Center will spend the next few months on the Bering Sea,
collecting data in annual and biennial bottom trawl surveys of groundfish and crab
species.
Alaska Fisheries Science Center will spend the next few months on the Bering Sea,
collecting data in annual and biennial bottom trawl surveys of groundfish and crab
species.
The survey got under way in
late May with 12 scientists aboard the F/V Aldebaran and F/V Alaska
Knight for the annual survey of groundfish and crab that inhabit the continental
shelf of the eastern Bering Sea. In early June, 18 more scientists were leaving
Dutch Harbor aboard the F/V Vesteraalen, F/V Sea
Storm and F/V Ocean Explorer for research in the eastern Bering Sea upper
continental slope and groundfish surveys of the Aleutian Islands.
late May with 12 scientists aboard the F/V Aldebaran and F/V Alaska
Knight for the annual survey of groundfish and crab that inhabit the continental
shelf of the eastern Bering Sea. In early June, 18 more scientists were leaving
Dutch Harbor aboard the F/V Vesteraalen, F/V Sea
Storm and F/V Ocean Explorer for research in the eastern Bering Sea upper
continental slope and groundfish surveys of the Aleutian Islands.
The bottom trawl surveys form
the cornerstone for many of the stock assessment and ecosystem forecast models used
by federal fisheries scientists for groundfish and crab harvest advice in Alaska.
The combined area represented by the crab and groundfish trawl surveys covers an
area greater than the size of Texas.
the cornerstone for many of the stock assessment and ecosystem forecast models used
by federal fisheries scientists for groundfish and crab harvest advice in Alaska.
The combined area represented by the crab and groundfish trawl surveys covers an
area greater than the size of Texas.
NOAA officials say the surveys
are invaluable tools for observing and documenting effects of climate change on
the benthic community and provide a unique foundation to systematically judge the
change in the Arctic and subarctic waters off Alaska. The loss of sea ice in northern
parts of the survey region is expected to exert a major influence on the structure
and function of the ecosystems and the status of managed fish, crab and other marine
species.
are invaluable tools for observing and documenting effects of climate change on
the benthic community and provide a unique foundation to systematically judge the
change in the Arctic and subarctic waters off Alaska. The loss of sea ice in northern
parts of the survey region is expected to exert a major influence on the structure
and function of the ecosystems and the status of managed fish, crab and other marine
species.
Stocks
to be assessed include walleye Pollock, Pacific cod, yellowfin sole, northern rock
sole, red king crab, and snow and Tanner crab. Scientists will collect information
on relative abundance, size and age compositions for both.