Results 91 to 100 of about 13,001 (233)

Spotted Seals, Phoca largha, in Alaska [PDF]

open access: yes, 1997
The worldwide literature on management of spotted seals, Phoca largha, was reviewed and updated, and aerial surveys weref lown in 1992 and 1993 to determine the species' distribution and abundance in U.S. waters.
Rugh, David J.   +2 more
core  

Transient shifts in Bering Sea shelf phytoplankton size structure in response to wind‐induced mixing

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Phytoplankton community size structure is a key attribute that influences pelagic trophic energy transfer and the vertical flux of organic matter to benthic food webs. To capture the ephemeral scale of phytoplankton population size spectra we developed an approach, combining long‐term survey datasets, machine learning modeling and 3 yr of high‐
Jens M. Nielsen   +10 more
wiley   +1 more source

Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet [PDF]

open access: yes, 2000
Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements.
Becker, Paul R.   +9 more
core  

Reconstruction of sea ice variability in the Chukchi Sea during the last three centuries based on biomarker proxies

open access: yesEnvironmental Research Communications
In this study, we reconstruct three-century of sea ice cover history in the Chukchi Sea from the downcore profile of total organic carbon (TOC) and biomarker proxies, namely the Ice Proxy with 25 carbon atoms (IP _25 ), the di- and tri-unsaturated highly
Bassem Jalali   +8 more
doaj   +1 more source

Seasonal Water Mass Evolution and Non-Redfield Dynamics Enhance CO2 Uptake in the Chukchi Sea. [PDF]

open access: yesJ Geophys Res Oceans, 2022
Ouyang Z   +13 more
europepmc   +1 more source

The Geographic Distribution of Bowhead Whales, Balaena mysticetus, in the Bering, Chukchi, and Beaufort Seas: Evidence from Whaleship Records, 1849–1914 [PDF]

open access: yes, 2005
We have extracted, digitized, and analyzed information about bowhead whales, Balaena mysticetus, contained in records of whaling cruises that were undertaken in the Bering, Chukchi, and Beaufort Seas from 1849 to 1914.
Bockstoce, John R.   +4 more
core  

Transitions of social-ecological subsistence systems in the Arctic [PDF]

open access: yes, 2017
Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A.   +3 more
core   +4 more sources

Harnessing Population Genomics, Gut Microbiota, and Environmental DNA Surveillance for the Conservation of Chinese Spotted Seals in a Changing World [PDF]

open access: yesEcol Evol
Marine mammals are sentinel species for ocean and human health. Multiple anthropogenic and environmental stressors threaten these organisms, particularly China's spotted seals, which have experienced significant decline over the past half‐century. Our review reveals low genetic diversity in Chinese spotted seal populations.
Li S, Li W, Zhang X, Zhou H, Zhan J.
europepmc   +2 more sources

High Resolution Mapping in support of UNCLOS Article 76: Seeing the seafloor with new eyes [PDF]

open access: yes, 2007
Since 2003, the Center for Coastal & Ocean Mapping/Joint Hydrographic Center at the University of New Hampshire (UNH) has been conducting multibeam mapping of many U.S.
Armstrong, Andy   +2 more
core   +2 more sources

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