Results 51 to 60 of about 549 (182)

Patterns of summer ichthyoplankton distribution, including invasive species, in the Bering and Chukchi Seas

Frontiers in Marine Science
A multidisciplinary survey was carried out in the Pacific Arctic and sub-Arctic regions of the North Pacific Ocean on the Korean icebreaking research vessel Araon.
Sung Hoon Kim, Wuju Son, Jaeill Yoo, Kyoung-Ho Cho, Taewook Park, Eun Jin Yang, Sung-Ho Kang, Hyoung Sul La, Hyoung Sul La   +8 more
doaj   +1 more source

Evaluating and Advancing the Use of Shore‐Based Observers for Scientific Sampling and Catch Verification in High‐Volume Fisheries

Fisheries Management and Ecology, EarlyView.
ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens, Andy Kingham, Jason E. Jannot   +2 more
wiley   +1 more source

Insight into the Population Genetics of the Walleye Pollock Gadus chalcogrammus (Pallas, 1814) in the Northwestern Pacific from Microsatellite Multiplex Assay Study

Diversity
The walleye pollock, Gadus chalcogrammus (Pallas, 1814), is one of the most commercially and ecologically valuable species in the Northwestern Pacific. However, combined pressures of overfishing and environmental changes have led to a substantial decline
Chung Il Lee, Moongeun Yoon, Keun-Yong Kim, Biet Thanh Tran, Chang-Keun Kang, Yun-Hwan Jung, Hae Kun Jung, Insong Koh, Jiyoung Woo   +8 more
doaj   +1 more source

Capelin Size, Condition, and Abundance Through Multiple Heatwaves in Alaska

Fisheries Oceanography, EarlyView.
ABSTRACT Capelin (Mallotus spp.) are pelagic forage fishes that can be especially abundant in sub‐arctic marine ecosystems and are important prey for upper trophic‐level consumers. Abundance and distribution of capelin have been linked to ocean temperature, but the magnitude and directionality of thermal sensitivity can vary regionally.
Robert M. Suryan, Jacek Maselko, Emily A. Fergusson, Fletcher Sewall, Johanna J. Vollenweider, Alexander G. Andrews III, James M. Murphy, Ellen M. Yasumiishi   +7 more
wiley   +1 more source

Distribution, diet, and energetic condition of age-0 walleye pollock (Gadus chalcogrammus) and pacific cod (Gadus macrocephalus) inhabiting the Gulf of Alaska

Deep Sea Research Part II: Topical Studies in Oceanography, 2016
Abstract Walleye pollock (Gadus chalcogrammus) and Pacific cod (Gadus macrocephalus) are commercially and ecologically important species in Alaska waters. Little is known about their ecology after transitioning from larvae to free swimming fish until settlement to nursery habitats in the eastern Gulf of Alaska.
Jamal H. Moss, Marilyn F. Zaleski, Ron A. Heintz   +2 more
openaire   +2 more sources

Larval Arctic cod (Boreogadus saida) exhibit stronger developmental and physiological responses to temperature than to elevated pCO2

Journal of Fish Biology, EarlyView.
Abstract High‐latitude ecosystems are simultaneously warming and acidifying under ongoing climate change. Arctic cod (Boreogadus saida) are a key species in the Arctic Ocean and have demonstrated sensitivity to ocean warming and acidification as adults and embryos, but their larval sensitivity to the combined stressors is unknown. In a laboratory multi‐
Emily Slesinger, Louise A. Copeman, Benjamin J. Laurel, Mary Beth R. Hicks, Paul J. Iseri, Michelle A. Stowell, Thomas P. Hurst   +6 more
wiley   +1 more source

Using Vessel Monitoring System Data to Identify and Characterize Trips Made by Fishing Vessels in the United States North Pacific. [PDF]

PLoS ONE, 2016
Time spent fishing is the effort metric often studied in fisheries but it may under-represent the effort actually expended by fishers. Entire fishing trips, from the time vessels leave port until they return, may prove more useful for examining trends in
Jordan T Watson, Alan C Haynie
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

Characterization of salmon‐foraging harbor seals (Phoca vitulina) in the Erimo region, Hokkaido, Japan, using finite mixture models

The Journal of Wildlife Management, Volume 90, Issue 2, February 2026.
Finite mixture models revealed that older, larger harbor seals specialize in salmon predation at setnets in Hokkaido, Japan, suggesting targeted management strategies focusing on these specialist individuals could effectively reduce fishery conflicts while protecting the broader seal population.
Takahito Masubuchi, Mari Kobayashi
wiley   +1 more source

First-Year Survival of Northern Fur Seals (Callorhinus ursinus) Can Be Explained by Pollock (Gadus chalcogrammus) Catches in the Eastern Bering Sea

Journal of Marine Science and Engineering, 2021
The Pribilof northern fur seal (Callorhinus ursinus) herd in the eastern Bering Sea has declined by ~70% since the 1970s, for elusive reasons. Competition for pollock (Gadus chalcogramma) with the commercial fishery has been suspected as a contributing ...
Jeffrey W. Short, Harold J. Geiger, Lowell W. Fritz, Jonathan J. Warrenchuk   +3 more
doaj   +1 more source