Results 11 to 20 of about 13,001 (233)

Ringed Seal (<i>Pusa hispida</i>) Haul-Out Behavior and Emergence Timing in the Bering, Chukchi, and Beaufort Seas. [PDF]

Ecol Evol
In the spring, ringed seals (Pusa hispida) shift from predominantly hauling out in lairs to predominantly hauling out on the surface of the sea ice to bask and molt, a transition we refer to as “emergence.” We used hidden Markov models (HMMs) to analyze haul‐out timelines from satellite‐linked transmitters to estimate emergence dates of ringed seals ...
Lindsay JM, Conn PB, Boveng PL, Crawford JA, Quakenbush LT, Von Duyke AL, Laidre KL.   +6 more
europepmc   +2 more sources

A multiscale seasonal examination of the risk of harm to seabirds from vessels based on co-occurrence in Alaskan waters. [PDF]

Conserv Biol
Abstract Alaska's seascape supports globally significant seabird populations, including vulnerable and threatened species, and hosts economically important commercial fisheries and marine transportation corridors. Seasonal patterns of seabird movements and vessel traffic create a complex landscape of risk, defined as high levels of co‐occurrence ...
Kapsar K, Sullender BK, Kuletz KJ.
europepmc   +2 more sources

Phytoplankton photophysiology varies depending on nitrogen and light availability at the subsurface chlorophyll maximum in the northern Chukchi Sea

Frontiers in Marine Science, 2022
Vertical distributions of phytoplankton in the Arctic Ocean are characterized by a very narrow subsurface chlorophyll maximum (SCM) layer formed every summer after the sea ice retreats.
Eunho Ko, Maxim Y. Gorbunov, Jinyoung Jung, Youngju Lee, Kyoung-Ho Cho, Eun Jin Yang, Jisoo Park   +6 more
doaj   +1 more source

Mass Occurrence of Pacific Copepods in the Southern Chukchi Sea During Summer: Implications of the High-Temperature Bering Summer Water

Frontiers in Marine Science, 2020
The Bering Strait is the only gateway to the Chukchi Sea from the Pacific Ocean and is a major route of Pacific water inflow. We recently investigated the occurrence of Pacific copepod species along with the warming of the Chukchi Sea and sought to ...
Jee-Hoon Kim, Kyoung-Ho Cho, Hyoung Sul La, Eun Jung Choy, Kohei Matsuno, Kohei Matsuno, Sung-Ho Kang, Won Kim, Eun Jin Yang   +8 more
doaj   +1 more source

Some aspects of biology and fishery of walleye pollock Theragra chalcogramma in the southwestern Chukchi Sea relative to the size and age structure

Известия ТИНРО, 2022
Catch distribution and size-age structure of walleye pollock in the Chukchi Sea are considered on the data obtained in surveys conducted by TINRO in 2018–2020. The age of pollock was determined by otoliths.
A. V. Buslov, E. E. Ovsyannikov
doaj   +1 more source

VARIABILITY OF THE ICE CONDITIONS IN THE CHUKCHI SEA AND THEIR LINKS WITH ARCTIC OSCILLATION

Известия ТИНРО, 2020
Variability of the ice conditions in the Chukchi Sea is considered in various scales on the basis of all available information for 1950–2017. Its dependence on the atmospheric circulation patterns measured with the Arctic Oscillation index is shown ...
V. V. Plotnikov, N. M. Vakulskaya, L. I. Mezentseva, V. A. Dubina, V. I. Pustoshnova   +4 more
doaj   +1 more source

Environmental Filtering Influences Functional Community Assembly of Epibenthic Communities

Frontiers in Marine Science, 2021
Community assembly theory states that species assemble non-randomly as a result of dispersal limitation, biotic interactions, and environmental filtering.
Lauren Sutton, Franz J. Mueter, Bodil A. Bluhm, Katrin Iken   +3 more
doaj   +1 more source

Female Pacific walruses (Odobenus rosmarus divergens) show greater partitioning of sea ice organic carbon than males: Evidence from ice algae trophic markers.

PLoS ONE, 2021
The expected reduction of ice algae with declining sea ice may prove to be detrimental to the Pacific Arctic ecosystem. Benthic organisms that rely on sea ice organic carbon (iPOC) sustain benthic predators such as the Pacific walrus (Odobenus rosmarus ...
Chelsea W Koch, Lee W Cooper, Ryan J Woodland, Jacqueline M Grebmeier, Karen E Frey, Raphaela Stimmelmayr, Cédric Magen, Thomas A Brown   +7 more
doaj   +1 more source

Phytoplankton Bloom Changes under Extreme Geophysical Conditions in the Northern Bering Sea and the Southern Chukchi Sea

Remote Sensing, 2021
The northern Bering Sea and the southern Chukchi Sea are undergoing rapid regional biophysical changes in connection with the recent extreme climate change in the Arctic. The ice concentration in 2018 was the lowest since observations began in the 1970s,
Jinku Park, Sungjae Lee, Young-Heon Jo, Hyun-Cheol Kim   +3 more
doaj   +1 more source

Feeding of walleye pollock and its feeding base in the Chukchi Sea in summer-autumn period

Известия ТИНРО, 2023
Data on feeding of walleye pollock <i>Gadus chalcogrammus</i> (3–70 cm long) in the Chukchi Sea in summer-autumn of 2017–2020 are presented. The food base includes zooplankton, benthic invertebrates and fish. The juveniles in the northwestern
N. A. Kuznetsova, M. A. Shebanova
doaj   +1 more source