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Isolation and characterization of pepsin from polar cod (Boreogadus saida)
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 19851. 1. Two zymogens of pepsin, pepsinogens A and B, were isolated from the gastric mucosa from Polar cod. Pepsins A and B accounted for more than 90% of the total pepsin units obtained in the crude extract of the mucosa. 2. 2. Pepsinogen A had a mol. wt of 42,000 and a P1 of 3.75. With hemoglobin as substrate, pepsin A had pH optimum of 2.0, a Km′
K. Arunchalam, N.F. Haard
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Feeding of Polar cod Boreogadus saida in the Kara Sea
Journal of Ichthyology, 2017In the summer–autumn period of 2007, 2010, and 2013, the peculiarities of Polar cod feeding Boreogadus saida in the Kara Sea were considered. In these years, the intensity of feeding of adult individuals was quite similar. Spatial and interannual differences in the composition of the food have been observed.
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Allozymic and scnDNA homogeneity in polar cod (Boreogadus saida) (Gadiformes: Gadidae)
1997Polar cod in the Arctic Ocean exhibits variation over its distributional area in both morphometry, coloration and behaviour. The genetic basis to this variation is not known. Thus, a population genetic survey of polar cod was initiated. Specimens were sampled from the Pechora Sea, off Svalbard and in the Denmark Strait and examined for variation at ...
Fevolden, Svein Erik +1 more
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Polar Biology, 2019
Polar cod (Boreogadus saida) and saffron cod (Eleginus gracilis) are key fishes in the Arctic marine ecosystem, serving as important trophic links between plankton and apex predators, yet our understanding of their life histories in Alaska’s Arctic is extremely limited.
Cathleen D. Vestfals +4 more
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Polar cod (Boreogadus saida) and saffron cod (Eleginus gracilis) are key fishes in the Arctic marine ecosystem, serving as important trophic links between plankton and apex predators, yet our understanding of their life histories in Alaska’s Arctic is extremely limited.
Cathleen D. Vestfals +4 more
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Sex differences in ionoregulatory responses to dietary oil exposure in polar cod
Journal of Fish Biology, 2000Serum osmolalities and chloride concentrations were examined in polar cod. When exposed to oil male and female fish responded differently. Ingestion of food contaminated with oil led to a significant decrease in osmolality (from 503 to 492 mOsm kg−1) in males. There was no significant effect of oil ingestion on serum osmolality in females, but chloride
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Polar cod (Boreogadus saida) of the Siberian Arctic: Distribution and biology
Deep Sea Research Part II: Topical Studies in Oceanography, 2023Olga A. Maznikova +5 more
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