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

For years scientists have struggled to understand the decline and slow recovery of Atlantic salmon, a once abundant and highly prized game and food fish native to New England rivers. Biologists agree that poor marine survival is affecting salmon in the U.S. and Canada, but specific causes are difficult to determine in the ocean. Small acoustic tags and associated technology may provide some answers.

Thirty of 150 Atlantic salmon smolts tagged by NOAA's Northeast Fisheries Science Center (NEFSC) in Maine's Penobscot River and released in Brewer, Maine in mid-May have crossed a line of underwater receivers off Halifax, Nova Scotia, the first fish to be tracked using the new global Ocean Tracking Network. The concept is similar to an EZ pass for highway toll booths, but for fish.

"The tracking system is deployed and working, which is great news," said John Kocik, who is leading the tagging project with colleague James Hawkes at the NEFSC's Maine Field Station in Orono, Maine. "We started ultrasonic tagging programs in Maine in 1997 and have learned much about salmon ecology in the estuaries and bays of the Gulf of Maine," Kocik said. "Our team is really excited that fish from our most recent work in the Penobscot River have been detected so far along on their migration northward. The first data provided valuable information about how long it took Atlantic salmon from the Penobscot River to reach Halifax."

The acoustic transmitters or tags, which are about the size of the silver eraser holder on a pencil, were surgically implanted in May in salmon smolts that were each six to seven inches in length. The surgeries, done at the Eddington Salmon Club, take less than seven minutes. After a brief recovery, the smolts were released at the nearby Brewer Boat Ramp.

Each tag has a unique identification code that transmits an ultrasonic signal every few seconds. To detect these tags locally, NEFSC maintains a network of more than 80 aco
'/>"/>

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

Page: 1 2 3 4

Related biology news :

1. Cell response to stress signals predicts tumors in women with common pre-breast cancer
2. Presence of certain antibodies signals healthier teeth and gums
3. Its a unisex brain with specific signals that trigger male behavior
4. Crossed (evolutionary) signals?
5. New continent and species discovered in Atlantic study
6. To save or savor? Its decision time for Atlantic bluefin tuna
7. Isotope analysis reveals foraging area dichotomy for Atlantic leatherback turtles
8. UD nets NOAA funding for Mid-Atlantic ocean observing
9. Pacific shellfish ready to invade Atlantic
10. Salmon garnish points the way to green electronics
11. New paper examines dams effects on California salmon
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/6/2015)... Aug. 6, 2015 Synaptics Inc. (NASDAQ: ... interface solutions, today announced collaboration with Microsoft on ... 10. Microsoft leveraged Synaptics, deep expertise in human ... Through stringent testing, Synaptics, advanced ... with Microsoft,s Precision TouchPad (PTP) specification empowering OEMs ...
(Date:8/4/2015)... 2015  AMRI (NASDAQ: AMRI ) today reported financial and ... Highlights: , Second quarter contract revenue of ... , Adjusted contract margins of 26 % ... a $0.05 decrease in EPS from royalties in the current quarter ... "We are very pleased to present another strong financial ...
(Date:7/31/2015)... 31 juillet 2015 La 10e Conférence ... sera organisée par le BGI du 22 au ... en Chine. La conférence célèbre ... en 2006, l,ICG est devenue l,une des réunions ... des « omiques » et c,est aussi la plus dynamique, ...
Breaking Biology News(10 mins):Synaptics Chosen for Human Interface Co-Development on Windows 10 2AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 2La 10e International Conference on Genomics (ICG-10) doit s'ouvrir en octobre 3
... environs to take up residence in a large and ... University Bloomington scientists report in this week's Science that ... , "Plants that reproduce clonally or are capable of ... the nucleus," said graduate student Yaniv Brandvain, lead author ...
... and give a short-term boost to cognitive skills, a University ... Professor Ian Macdonald found that consumption of a cocoa drink ... blood flow to key areas of the brain for two ... areas of the brain may help to increase performance in ...
... Dentistry (NYUCD) research team has found the first oral bacterial ... Africa to Asia. , The team, led by ... NYUCD, discovered that Streptoccocus mutans, a bacterium associated with dental ... clear line that can be traced back to a single ...
Cached Biology News:Mitochondrial genes move to the nucleus -- but it's not for the sex 2Boosting brain power -- with chocolate 2'Ancestral eve' was mother of all tooth decay 2
(Date:8/28/2015)... ... August 28, 2015 , ... Proove ... at the International Spine Intervention Society’ s 23rd Annual Scientific Meeting ... 1st, 2015. With a focus on evidence-based research and clinical application, the event ...
(Date:8/27/2015)... ... August 27, 2015 , ... The ... funds, investment firms and animal health companies to hear from animal health companies ... Several have also received licensing agreements or distribution contracts. This meeting is ...
(Date:8/27/2015)... Aug. 27, 2015  Asterias Biotherapeutics, Inc. (NYSE MKT: ... of regenerative medicine, today announced that executives from the ... month of September.  , Pedro ... & Renshaw,s 17th Annual Global Investment Conference on Wednesday, ... St. Regis Hotel in New York City ...
(Date:8/27/2015)... Greifensee, Switzerland (PRWEB) , ... August 27, 2015 ... ... input on customers’ weighing needs and expertly narrows down the product choices to ... additional selection criteria pares down the list to models that fit best with ...
Breaking Biology Technology:Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 2Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 3Proove Biosciences Presents New Research Study at the International Spine Intervention Society’s Annual Scientific Meeting 4VetStem Biopharma, Inc. Among Seventeen Companies Selected to Present at the KC Animal Health Investment Forum on September 1st 2015 2VetStem Biopharma, Inc. Among Seventeen Companies Selected to Present at the KC Animal Health Investment Forum on September 1st 2015 3Asterias Biotherapeutics to Present at Upcoming Investor Conferences 2METTLER TOLEDO Updates Online Scale Selection Tool 2
... class-action lawsuit on behalf of Wisconsin consumers against Microsoft ... result of last week's state Supreme Court ruling ... Olstad, seeks a settlement fund for all Wisconsin consumers ... contention is that Wisconsin consumers have paid inflated prices ...
... Wis. - When Hurricane Dennis reached landfall in ... not too surprising a development. Weather Central Inc. ... already forecast almost the exact location two days earlier. ... forecast model, a service used by more than 100 ...
... SecurePipe , a provider of managed network security ... acquire the assets of Mycom's mailMAX Managed ... Cincinnati-based Mycom Group, Inc. , ,SecurePipe is a provider ... manufacturing, education, health care and financial institutions. Headquarted in ...
Cached Biology Technology:Wisconsin Supreme Court rules against Microsoft 2