Results 31 to 40 of about 29,462 (230)

Seasonal shifts in feeding patterns: Individual and population realized specialization in a high Arctic fish. [PDF]

Ecol Evol, 2019
Species with a broad and flexible diet may be at an advantage in a rapidly changing environment such as in today's Arctic ecosystems. Polar cod (Boreogadus saida), an abundant and ecologically important circumpolar Arctic fish, is often described as a ...
Cusa M, Berge J, Varpe Ø.
europepmc   +2 more sources

Developmental Patterns of Hepatic Peroxisome Proliferator-Activated Receptor (PPAR) Expression in Xenopus laevis and Response to Pharmaceutical Agonists During Metamorphic Climax. [PDF]

J Exp Zool A Ecol Integr Physiol
ABSTRACT Peroxisome proliferator‐activated receptors (PPAR) are master transcriptional regulators that maintain metabolic homeostasis in vertebrates. Amphibians are often exposed to endocrine disrupting compounds (EDCs) that could dysregulate lipid metabolism.
Bushong A, Hoskins TD, Scherer M, Sepúlveda MS.   +3 more
europepmc   +2 more sources

Impacts of the Changing Ocean-Sea Ice System on the Key Forage Fish Arctic Cod (Boreogadus Saida) and Subsistence Fisheries in the Western Canadian Arctic—Evaluating Linked Climate, Ecosystem and Economic (CEE) Models

Frontiers in Marine Science, 2019
This study synthesizes results from observations, laboratory experiments and models to showcase how the integration of scientific methods and indigenous knowledge can improve our understanding of (a) past and projected changes in environmental conditions
Nadja Steiner, W. Cheung, A. Cisneros‐Montemayor, H. Drost, Hakase Hayashida, Carie Hoover, J. Lam, T. Sou, U. R. Sumaila, P. Suprenand, T. -. Tai, D. VanderZwaag   +11 more
semanticscholar   +3 more sources

Morphology, Transcriptomics and In Vitro Model of Skin from Polar Cod (Boreogadus Saida) and Atlantic Cod (Gadus Morhua)

Fishes, 2020
Fish skin is a multifunctional barrier tissue with high regeneration capacity that interacts with the surrounding environment and provides protection.
E. Ytteborg, Ø. Hansen, V. Høst, S. Afanasyev, Ireen Vieweg, J. Nahrgang, A. Krasnov   +6 more
semanticscholar   +3 more sources

Rapid genome modifications including chromosomal fusions and large-scale inversions are key features in Arctic codfish species. [PDF]

Genome Biol
Background Genome evolvability involves activation of transposable elements (TEs) that result in novel genomic rearrangements, including translocations, deletions, duplications, as well as larger structural reorganizations, such as chromosomal inversions
Hoff SNK, Maurstad MF, Tørresen OK, Araya RA, Berg PR, Præbel K, Jakobsen KS, Jentoft S.   +7 more
europepmc   +2 more sources

Reference genome bias in light of species-specific chromosomal reorganization and translocations. [PDF]

Genome Biol
Background Whole-genome sequencing efforts, have during the past decade, unveiled the central role of genomic rearrangements—such as chromosomal inversions—in evolutionary processes, including local adaptation in a wide range of taxa. However, employment
Maurstad MF, Hoff SNK, Cerca J, Ravinet M, Bradbury I, Jakobsen KS, Præbel K, Jentoft S.   +7 more
europepmc   +2 more sources

Black-legged kittiwakes (Rissa tridactyla) readily consume Arctic cod (Boreogadus saida) in the Canadian Arctic: Insights from stomach content and stable isotope analyses

Arctic Science
The Arctic is undergoing rapid declines in sea ice and changes in Arctic ecosystems. The diet of one of the Arctic’s most abundant seabirds, the black-legged kittiwake (Rissa tridactyla), has been used as an indicator of ecosystem changes in the European
J. Baak, Reyd Dupuis‐Smith, Kyle Elliott, M. Mallory, D. Yurkowski, Kevin J. Hedges, Jennifer F. Provencher   +6 more
semanticscholar   +3 more sources

Susceptibility of polar cod (Boreogadus saida) to a model carcinogen [PDF]

Marine Environmental Research, 2021
Studies that aim to characterise the susceptibility of the ecologically relevant and non-model fish polar cod (Boreogadus saida) to model carcinogens are required. Polar cod were exposed under laboratory conditions for six months to control, 0.03 μg BaP/g fish/week and 0.3 μg BaP/g fish/week dietary benzo(a)pyrene (BaP), a reference carcinogen.
Adélaïde Lerebours, Svetlana Murzina, You Song, Knut Erik Tollefsen, Maura Benedetti, Francesco Regoli, Jeanette M. Rotchell, Jasmine Nahrgang   +7 more
openaire   +6 more sources

Low levels of hybridization between sympatric cold-water-adapted Arctic cod and Polar cod in the Beaufort Sea confirm genetic distinctiveness

Arctic Science, 2022
As marine ecosystems respond to climate change and other stressors, it is necessary to evaluate current and past hybridization events to gain insight on the outcomes and drivers of such events. Ancestral introgression within the gadids has been suggested
Robert E. Wilson, Sarah A. Sonsthagen, Philip Lavretsky, Andrew Majewski, Einar Árnason, Katrín Halldórsdóttir, Axel W. Einarsson, Kate Wedemeyer, Sandra L. Talbot   +8 more
doaj   +1 more source

The circumpolar impacts of climate change and anthropogenic stressors on Arctic cod (Boreogadus saida) and its ecosystem

Elem Sci Anth, 2023
Arctic cod (Boreogadus saida) is the most abundant forage fish in the Arctic Ocean. Here we review Arctic cod habitats, distribution, ecology, and physiology to assess how climate change and other anthropogenic stressors are affecting this key species ...
M. Geoffroy, C. Bouchard, H. Flores, D. Robert, H. Gjøsæter, Carie Hoover, H. Hop, N. Hussey, J. Nahrgang, Nadja Steiner, M. Bender, J. Berge, G. Castellani, N. Chernova, L. Copeman, C. David, A. Deary, G. Divoky, A. Dolgov, J. Duffy‐Anderson, N. Dupont, J. M. Durant, K. Elliott, S. Gauthier, E. Goldstein, R. Gradinger, K. Hedges, J. Herbig, B. Laurel, L. Loseto, Sarah M Maes, F. Mark, A. Mosbech, S. Pedro, H. Pettitt‐Wade, I. Prokopchuk, P. Renaud, Sarah Schembri, Cathleen D. Vestfals, W. Walkusz   +39 more
semanticscholar   +1 more source