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Diet influence on mechanisms of non-specific stress-response in Baikal endemic amphipod species during long-term laboratory exposure

In: Crustaceana
Authors:
D. V. Axenov-Gribanov Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation
Baikal Research Centre, Lenin Street 21, 664003 Irkutsk, ussian Federation

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D. S. Bedulina Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation

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Y. A. Shirokova Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation

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V. A. Emshanova Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation

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Y. A. Lubyaga Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation
Baikal Research Centre, Lenin Street 21, 664003 Irkutsk, ussian Federation

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K. P. Vereshchagina Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation

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A. E. Saranchina Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation

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T. P. Pobezhimova Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation
Siberian Institute of Plant Physiology and Biochemistry of the Siberian Branch of the RAS, Lermontov Street 132, 664033 Irkutsk, Russian Federation

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M. A. Timofeyev Irkutsk State University, Institute of Biology, Karl Marx Street 1, 664003 Irkutsk, Russian Federation
Baikal Research Centre, Lenin Street 21, 664003 Irkutsk, ussian Federation

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Abstract

The purpose of this study was to estimate one of the important aspects of amphipod laboratory culturing — the effect of different types of nutrition on the key biochemical markers widely used in biomonitoring. The study was performed with the Baikal endemic amphipod species Eulimnogammarus verrucosus (Gerstfeldt, 1858), E. cyaneus (Dybowski, 1874), and Gmelinoides fasciatus (Stebbing, 1899). These species are characterized by different ecological properties and evolutionary history. The results of the study demonstrate that a long-term laboratory exposure to different diets has a direct effect on vital and physiological parameters of the species’ adaptation (mortality, weight, protein concentration). Also, feeding imposes its influence on the common stress-markers of oxidative stress (activities of peroxidase, catalase, glutathione S-transferase), and on anaerobic metabolism (activity of lactate dehydrogenase) in Baikal amphipods, and this effect has a species-specific character. The results should be taken into consideration in future ecophysiological experiments performed with amphipods.

Résumé

Le but de cette étude a été d’évaluer un parmi les important aspects de l’élevage en laboratoire des amphipodes – l’effet de différents types de nutrition sur les marqueurs biochimiques clés utilisés en biosurveillance. L’étude a été effectuée avec les espèces d’amphipodes endémiques du lac Baïkal Eulimnogammarus verrucosus (Gerstfeldt, 1858), E. cyaneus (Dybowski, 1874), et Gmelinoides fasciatus (Stebbing, 1899). Ces espèces sont caractérisées par des caractères écologiques et une histoire évolutive différents. Les résultats de l’étude démontrent qu’une exposition à long terme en laboratoire à différents régimes a un effet direct sur les paramètres vitaux et physiologiques pour l’adaptation de l’espèce (mortalité, poids, concentration de protéines). De plus la nourriture influence les marqueurs communs du stress oxydatif (activité de peroxydase, catalase, glutathion S-transférase), et du métabolisme anaérobie (activité de la lactase déshydrogénase) chez les amphipodes du lac Baïkal, et ces effets sont caractéristiques de l’espèce. Les résultats devraient être pris en compte dans les futures expériences écophysiologiques sur les amphipodes.

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