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Changing Sea Surface Temperatures and Water Circulation Patterns Affecting…Young Atlantic Cod
http://www.nefsc.noaa.gov/press_release/2013/SciSpot/SS1307/[font face=Serif]June 20, 2013
RESEARCH COMMUNICATIONS
166 Water Street
Woods Hole MA 02543
[font size=5]Changing Sea Surface Temperatures and Water Circulation Patterns Affecting Food Supply for Young Atlantic Cod[/font]
[font size=3]Changing ocean water temperatures and circulation patterns have profoundly affected key Northeast U.S. Continental Shelf zooplankton species in recent decades, and may be influencing the recovery of Atlantic cod and other fish stocks in the region.
NOAA researcher Kevin Friedland and colleagues looked at the distribution and abundance of important zooplankton species, sea surface water temperatures, and cod abundance. They found that zooplankton species critical for the survival of Atlantic cod larvae have declined in abundance in the same areas where Atlantic cod stocks have struggled to rebuild after an extended period of overfishing.
“Temperature is a governing factor in the growth, reproduction and distribution of marine organisms. Shifting temperature distributions, whether triggered by natural or human factors, can cause the redistribution of plankton communities on regional and basin-wide scales,” said Friedland, lead author on the study and a scientist at NOAA's Northeast Fisheries Science Center (NEFSC).
The change in thermal habitats has had biological consequences on multiple levels in the food chain, according to the study in press in the journal Progress in Oceanography (available online).
…[/font][/font]
RESEARCH COMMUNICATIONS
166 Water Street
Woods Hole MA 02543
[font size=5]Changing Sea Surface Temperatures and Water Circulation Patterns Affecting Food Supply for Young Atlantic Cod[/font]
[font size=3]Changing ocean water temperatures and circulation patterns have profoundly affected key Northeast U.S. Continental Shelf zooplankton species in recent decades, and may be influencing the recovery of Atlantic cod and other fish stocks in the region.
NOAA researcher Kevin Friedland and colleagues looked at the distribution and abundance of important zooplankton species, sea surface water temperatures, and cod abundance. They found that zooplankton species critical for the survival of Atlantic cod larvae have declined in abundance in the same areas where Atlantic cod stocks have struggled to rebuild after an extended period of overfishing.
“Temperature is a governing factor in the growth, reproduction and distribution of marine organisms. Shifting temperature distributions, whether triggered by natural or human factors, can cause the redistribution of plankton communities on regional and basin-wide scales,” said Friedland, lead author on the study and a scientist at NOAA's Northeast Fisheries Science Center (NEFSC).
The change in thermal habitats has had biological consequences on multiple levels in the food chain, according to the study in press in the journal Progress in Oceanography (available online).
…[/font][/font]
