Alterations in the energy budget of arctic benthic species exposed to oil-related compounds / Lionel Camus

Public ISBD Faire une suggestion d'achat Titre : Alterations in the energy budget of arctic benthic species exposed to oil-related compounds Type de document : texte imprimé Auteurs : Lionel Camus, Auteur Importance : pp. 85-92 Langues : Anglais (eng) Index. décimale : 571 Physiologie et sujets voisins Résumé : We studied cellular energy allocation (CEA) in three Arctic bcnthic species (Gummarux seumm (Amphipoda), Onisimus lituralis (Amphipoda), unALiocymafluctuosa (Bivalvia)) exposed to oil-related compounds. The CEA biomarker measures the energy budget of organisms by biochemically assessing changes in energy available (carbohydrates, protein and lipid content) and the integrated energy consumption (electron transport system activity (ETS) as the cellular aspect of respiration). Energy budget was measured in organisms subjected to water-accommodated fraction (WAF) of crude oil and drill cuttings (DC) to evaluate whether these compounds affect the energy metabolism of the test species. We observed significantly lower CEA values and higher ETS activity in G. setosus subjected to WAF treatment compared to controls (p < 0.03). Higher CEA value and lower cellular respiration were observed in O. litoralis exposed to DC compared to controls (p = 0.02). No difference in the energy budget of L. fluctaosa was observed between the treatments (p > 0.19). Different responses to oil-related compounds between the three test species are likely the result of differences in feeding and burrowing behavior and species-specific sensitivity to petroleum-related compounds. Alterations in the energy budget of arctic benthic species exposed to oil-related compounds [texte imprimé] / Lionel Camus, Auteur . - [s.d.] . - pp. 85-92. Langues : Anglais (eng) Index. décimale : 571 Physiologie et sujets voisins Résumé : We studied cellular energy allocation (CEA) in three Arctic bcnthic species (Gummarux seumm (Amphipoda), Onisimus lituralis (Amphipoda), unALiocymafluctuosa (Bivalvia)) exposed to oil-related compounds. The CEA biomarker measures the energy budget of organisms by biochemically assessing changes in energy available (carbohydrates, protein and lipid content) and the integrated energy consumption (electron transport system activity (ETS) as the cellular aspect of respiration). Energy budget was measured in organisms subjected to water-accommodated fraction (WAF) of crude oil and drill cuttings (DC) to evaluate whether these compounds affect the energy metabolism of the test species. We observed significantly lower CEA values and higher ETS activity in G. setosus subjected to WAF treatment compared to controls (p < 0.03). Higher CEA value and lower cellular respiration were observed in O. litoralis exposed to DC compared to controls (p = 0.02). No difference in the energy budget of L. fluctaosa was observed between the treatments (p > 0.19). Different responses to oil-related compounds between the three test species are likely the result of differences in feeding and burrowing behavior and species-specific sensitivity to petroleum-related compounds.

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