Physiological and biochemical characteristics of polar cod (Boreogadus saida) from Kongsfjorden
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| Main Authors: | , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2010
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| _version_ | 1867167670678323200 |
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| author | Nahrgang, Jasmine Camus, Lionel Broms, Fredrik Christiansen, Jørgen S Hop, Haakon |
| author_facet | Nahrgang, Jasmine Camus, Lionel Broms, Fredrik Christiansen, Jørgen S Hop, Haakon |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Seasonality of biomarker baseline levels were studied in polar cod (Boreogadus saida), caught in Kongsfjorden, Svalbard, in April, July, September and December, 2006-2007. Physiological parameters (condition factor, gonado- and hepato-somatic indexes, energy reserves, potential metabolic activity and antifreeze activity) in polar cod were used to interpret the seasonality of potential biomarkers. The highest levels of ethoxyresorufin-O-deethylase (EROD) activity occurred concomitantly with the highest potential metabolic activity in July due to e.g. intense feeding. During pre-spawning, EROD showed significant inhibition and gender differences. Hence, its potential use in environmental monitoring should imply gender differentiation at least during this period. Glutathione S-transferase and catalase activities were stable from April to September, but changed in December suggesting a link to low biological activity. Knowledge of the biomarker baseline levels and their seasonal trends in polar cod is essential for a trustworthy interpretation of forthcoming toxicity data and environmental monitoring in the Arctic. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_817478 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Physiological and biochemical characteristics of polar cod (Boreogadus saida) from Kongsfjorden Nahrgang, Jasmine Camus, Lionel Broms, Fredrik Christiansen, Jørgen S Hop, Haakon International Polar Year (2007-2008); IPY Seasonality of biomarker baseline levels were studied in polar cod (Boreogadus saida), caught in Kongsfjorden, Svalbard, in April, July, September and December, 2006-2007. Physiological parameters (condition factor, gonado- and hepato-somatic indexes, energy reserves, potential metabolic activity and antifreeze activity) in polar cod were used to interpret the seasonality of potential biomarkers. The highest levels of ethoxyresorufin-O-deethylase (EROD) activity occurred concomitantly with the highest potential metabolic activity in July due to e.g. intense feeding. During pre-spawning, EROD showed significant inhibition and gender differences. Hence, its potential use in environmental monitoring should imply gender differentiation at least during this period. Glutathione S-transferase and catalase activities were stable from April to September, but changed in December suggesting a link to low biological activity. Knowledge of the biomarker baseline levels and their seasonal trends in polar cod is essential for a trustworthy interpretation of forthcoming toxicity data and environmental monitoring in the Arctic. |
| title | Physiological and biochemical characteristics of polar cod (Boreogadus saida) from Kongsfjorden |
| topic | International Polar Year (2007-2008); IPY |
| url | https://doi.org/10.1594/PANGAEA.817478 |