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Signals from the Atlantic salmon highway
Date:8/18/2008

g Network are another tool. The network was established in 2007 with support from the Canadian government and is headquartered at Dalhousie University in Halifax, Nova Scotia. Once fully operational, it will enable marine scientists around the world to track the movements and behavior of marine life as well as to monitor ocean conditions such as temperature, salinity, and currents.

"Atlantic salmon are an iconic fish, but they're endangered and people want to know what's happening to the population," said Mike Stokesbury, director of research for the Ocean Tracking Network. "This is the first step to finding out where the salmon are dying and what's causing the decline."

Kocik says marine arrays like the Ocean Tracking Network will add significantly to the data available from existing receivers in the Penobscot and other rivers in Maine and in the Gulf of Maine. New regional observing systems like the Gulf of Maine Ocean Observing System will add even more data about environmental and climate conditions.

"We know specifically where a tagged salmon has been and when, and that helps us fill in a big gap," Kocik said. "The news is encouraging. In 2008 more than 2,000 adult salmon returned to the Penobscot River to spawn, the highest annual total in more than 20 years. Research like this ultrasonic tagging project will help us understand why, and perhaps then managers can work to actively improve Atlantic salmon marine survival."


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Contact: Shelley Dawicki
shelley.dawicki@noaa.gov
508-495-2378
NOAA National Marine Fisheries Service
Source:Eurekalert

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