Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Alex De Robertis"'
Publikováno v:
PLoS ONE, Vol 9, Iss 1, p e86726 (2014)
Aggregation is commonly thought to improve animals' security. Within aquatic ecosystems, group-living prey can learn about immediate threats using cues perceived directly from predators, or from collective behaviours, for example, by reacting to the
Externí odkaz:
https://doaj.org/article/c99d81fee6d54e53a1dcac73b6f49f0e
Autor:
Robert M. Levine, Alex De Robertis, Daniel Grünbaum, Sharon Wildes, Edward V. Farley, Phyllis J. Stabeno, Christopher D. Wilson
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 208:105244
Autor:
Noah Lawrence-Slavas, Daniel Grünbaum, Rebecca A. Woodgate, Robert M. Levine, Heather M. Tabisola, Alex De Robertis, Calvin W. Mordy, Edward D. Cokelet, Franz J. Mueter
Publikováno v:
Limnology and Oceanography. 66:1139-1154
Autor:
Dean A. Stockwell, Francis K. Wiese, Ed Farley, Alex De Robertis, Peter L. Boveng, Katrin Iken, John J. Citta, Carol Ladd, J. Craighead George, Lori T. Quakenbush, Henry P. Huntington, Kathy J. Kuletz, Seth L. Danielson, Phyllis J. Stabeno, Matthew R. Baker, Robert M. Levine, Christopher D. Wilson, Danielle M.S. Dickson, David G. Kimmel, Kathleen M. Stafford
Publikováno v:
Nature Climate Change. 10:342-348
The highly productive northern Bering and Chukchi marine shelf ecosystem has long been dominated by strong seasonality in sea-ice and water temperatures. Extremely warm conditions from 2017 into 2019—including loss of ice cover across portions of t
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 207:105225
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 206:105213
Autor:
Denise McKelvey, Sarah Stienessen, Alex De Robertis, James N. Ianelli, Rick Towler, Taina Honkalehto, Cole C. Monnahan, Darin Jones, N. Lauffenburger, Mike Levine
Publikováno v:
Ices Journal of Marine Science
In 2020, the developing COVID-19 pandemic disrupted fisheries surveys to an unprecedented extent. Many surveys were cancelled, including those for walleye pollock (Gadus chalcogrammus) in the eastern Bering Sea (EBS), the largest fishery in the Unite
Autor:
Alex De Robertis, Olav A. Ormseth
Publikováno v:
Deep Sea Research Part II: Topical Studies in Oceanography. 165:255-267
A series of daytime replicate (spring/summer/fall) acoustic surveys were conducted at 11 inshore sites along the Kodiak Island/Kenai Peninsula area and the outer coast of Southeast Alaska as part of the Gulf of Alaska Integrated Ecosystem Research Pr
Autor:
Alex De Robertis, Mike Levine, Ivar Wangen, Christopher Bassett, Lars Nonboe Andersen, Scott R. Furnish
Publikováno v:
ICES Journal of Marine Science. 76:1882-1892
The Simrad EK60 echosounder is widely used in acoustic-trawl surveys. It has recently been replaced by the EK80, which can be configured to operate in a manner similar to the EK60. To examine whether EK80s can be substituted for EK60s, the echosounde
Publikováno v:
Journal of Experimental Marine Biology and Ecology. 508:21-26
Cameras are an important tool for sampling marine environments, providing estimates of fish size and abundance for ecological studies and resource management. In addition to length estimates, calibrated stereo-cameras can be used to provide precise l