Navigation Links
Seals forage at offshore wind farms
Date:7/21/2014

By using sophisticated GPS tracking to monitor seals' every movement, researchers have shown for the first time that some individuals are repeatedly drawn to offshore wind farms and pipelines. Those man-made structures probably serve as artificial reefs and attractive hunting grounds, according to a study published in the Cell Press journal Current Biology on July 21.

"I was shocked when I first saw the stunning grid pattern of a seal track around Sheringham Shoal," an offshore wind farm in the United Kingdom, says Deborah Russell of the University of St Andrews. "You could see that the individual appeared to travel in straight lines between turbines, as if he was checking them out for potential prey and then stopping to forage at certain ones."

Russell and her colleagues tagged harbor and gray seals on the British and Dutch coasts of the North Sea. Their data showed 11 harbor seals within two active wind farms, Alpha Ventus in Germany and Sheringham Shoal in the southeast UK. At both sites, some individual seals regularly entered the wind farms and, in some cases, showed these striking grid-like movement patterns as they appeared to forage at individual turbines.

The researchers also observed both gray and harbor seals associating with subsea pipelines. Two seals in the Netherlands encountered a section of pipeline and followed it on multiple trips for up to 10 days at a time.

It's not yet clear what the implications for seals and their prey will ultimately be as the number of active wind farms continues to grow, the researchers say.

"Only a small proportion of our study seals utilized wind farms or pipelines," Russell says. "At present these structures cover a small proportion of the extent of the at-sea distribution of seals. As wind farms become more extensive, many more seals will likely be affected."

The researchers now hope to continue their research to understand the population consequences of the massive planned developments. For instance, no one knows yet whether wind farms increase the total amount of prey available to seals or simply concentrate prey in a new and man-made location, making the prey particularly vulnerable to predation. The researchers say it will be imperative to resolve this uncertainty so that anthropogenic structures can be designed and managed to reduce adverse and increase any positive effects of these structures.


'/>"/>

Contact: Mary Beth O'Leary
moleary@cell.com
617-397-2802
Cell Press
Source:Eurekalert  

Related biology news :

1. New study shows how seals sleep with only half their brain at a time
2. Seals gamble with their pups futures
3. Greenlands viking settlers gorged on seals
4. Southern elephant seals likely detect prey bioluminescence for foraging
5. Gray seals consume as much fish as the fishing industry catches
6. Changes in forage fish abundance alter Atlantic cod distribution, affect fishery success
7. Clemson researchers: Different forage affects beef cattle weight, taste
8. New menhaden study will help identify balance between fishing and preserving Bay forage fish
9. Study provides first-time analysis of 3 distinct contributions of forage fish worldwide
10. Impaired recovery of Atlantic cod -- forage fish or other factors?
11. Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Seals forage at offshore wind farms
(Date:4/11/2017)... , Apr. 11, 2017 Research and Markets ... 2017-2021" report to their offering. ... The global eye tracking market to grow at a CAGR ... Global Eye Tracking Market 2017-2021, has been prepared based on an ... the market landscape and its growth prospects over the coming years. ...
(Date:4/5/2017)...  The Allen Institute for Cell Science today announces ... portal and dynamic digital window into the human cell. ... application of deep learning to create predictive models of ... a growing suite of powerful tools. The Allen Cell ... publicly available resources created and shared by the Allen ...
(Date:4/3/2017)... 2017  Data captured by IsoCode, IsoPlexis ... a statistically significant association between the potency ... and objective response of cancer patients post-treatment. ... whether cancer patients will respond to CAR-T ... as to improve both pre-infusion potency testing and ...
Breaking Biology News(10 mins):
(Date:8/16/2017)... year,s edition of the Inc. 5000 features a now-familiar name: BioPoint ( ... the list for the third year in a row. Now in its ... on a set of quantitative metrics. In addition, BioPoint was also named ... Bay State . ... 5000 ...
(Date:8/15/2017)... ... August 15, 2017 , ... Nanomedical ... and biotherapeutics development, announces the launch of the new NHS Agile biosensor ... kinetic binding data for a wide range of molecules, including small and large ...
(Date:8/15/2017)... ... August 15, 2017 , ... The Conference Forum and ... (IO360°) programming through a series of upcoming panels and events. The partnership culminates with ... The Roosevelt Hotel in New York City. , “With our experience in producing the ...
(Date:8/14/2017)... Portland, Oregon (PRWEB) , ... August 14, 2017 ... ... modules that provide essential device-to-computer interconnect using USB or PCI Express, announced the ... hardware. , SYZYGY is intended to satisfy the need for a compact, low ...
Breaking Biology Technology: