Seasonal variability of some biochemical parameters in the whitefish (Coregonus muksun and Coregonus lavaretus)

Coregonus EROD GST GSH phospholiрids season.

Морфо-функциональные особенности эритроцитов природных и искусственно выращенных сиговых рыб озера Байкал, The influence of season and levels of dietary lipid on growth performance and lipid composition in rainbow trout Parasalmo mykiss (Walbaum, 1792), ...

Сибирский экологический журнал, 2 (2016) 228236 УДК 577.15: 57.042: 57.017.32 DOI 10.15372/SEJ20160207 Seasonal variability of some biochemical parameters in the whitefish (Coregonus muksun and Coregonus lavaretus) E. V. BORVINSKAYA1, I. V. SUKHOVSKAYA1, A. A. KOSÑHNEVA2, O. B. VASILYEVA1, M. A. NAZAROVA3, L. P. SMIRNOV1, N. N. NEMOVA1 1 Institute of Biology of the Karelian Research Centre, RAS 185910, Petrozavodsk, Pushkinskaya str., 11 E-mail: katsu@inbox. ru 2 Petrozavodsk State University 185910, Petrosavodsk, Leninа str., 33 3 Vologda State University 160035, Vologda, Leninа str., 15 Статья поступила 02.06.2015 Принята к печати 23.06.2015 ABSTRACT The base levels and seasonal variability of ethoxyresorufin-O-deethylase (EROD) activity, glutathione-S-transferase (GST) activity, reduced glutathione concentration (GSH) and phospholipids concentration (PhL) of Coregonus lavaretus (Linnаeus, 1758) and C. muksun (Pallas, 1814) were investigated. <...> The relationships between this biochemical markers, hepatosomatic index and seasonal growth were also examined. <...> Molecules involved in biochemical adaptation vary in accordance with current metabolic demands and as biomarkers may indicate the general state of the organism. <...> In this context, a number of biochemical parameters (biomarkers) have been investigated to assess disturbances of biological functions in aquatic organisms during biomonitoring studies [Sheehan, Power, 1999; Adams, 2002; Van der Oost et al., 2003; Martнnez-Бlvarez et al., 2005; Lehtonen et al., 2006]. <...> These confounding factors may mask the effect of contaminant-induced stress signals and make the interpretation of the results quite challenging [Pavloviж et al., 2010; Fonseca et al., 2011; Oliva et al., 2012; Koenig, Solй, 2012]. <...> It was reported, that sometimes in aquatic ecosystems environmental variables have even greater influence on biomarkers than xenobiotic substances [Pavloviж et al., 2004]. <...> Thus, natural vulnerability of biomarkers must always be considered when designing an experiment and analyzing the obtained results. <...> Xenobiotic biotransformation enzymes and components of antioxidant defense system have been extensively used as valuable biomarkers of adverse effects of pollutants on hydrobionts [Martнnez-Бlvarez et <...>

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