Lipid and fatty acid composition of scavenging amphipods Ommatogammarus spp. from different depths of lake Baikal

Пеккоева, С. Н.; Voronin, Viktor P.; Shatilina, Z. M.; Axenov-Gribanov, Denis V.; Shirokova, Y. A.; Timofeyev, Maxim A.; Немова, Н. Н.; Мурзина, С. А.

doi:10.1007/s10201-021-00657-z

Cited by 4 publications

(2 citation statements)

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“…O. albinus has a higher amount of total lipids than O. flavus [ 51 ], and the main difference is probably associated with storage lipids, as the deeper-dwelling O. albinus should require larger energy storage (and it is seemingly “fatter”). This difference may explain the lower DC content in the storage lipids of O. albinus , since the same amount of produced DC may be normalized to a higher amount of lipids.…”

Section: Discussionmentioning

confidence: 99%

“…The absence of a difference in CAT and POD activities suggests a demand of O. flavus for the detoxification of some other substances not related to oxidative stress. It is conceivable that O. flavus consumes a higher amount of some toxic substances in food than O. albinus , but the previous data on lipid composition suggest identical diets for these species [ 51 ].…”

Section: Discussionmentioning

confidence: 99%

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Metabolic Tolerance to Atmospheric Pressure of Two Freshwater Endemic Amphipods Mostly Inhabiting the Deep-Water Zone of the Ancient Lake Baikal

Shirokova

Gurkov

Drozdova

et al. 2022

Insects

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Lake Baikal is the only freshwater reservoir inhabited by deep-water fauna, which originated mostly from shallow-water ancestors. Ommatogammarus flavus and O. albinus are endemic scavenger amphipods (Amphipoda, Crustacea) dwelling in wide depth ranges of the lake covering over 1300 m. O. flavus had been previously collected close to the surface, while O. albinus has never been found above the depth of 47 m. Since O. albinus is a promising model species for various research, here we tested whether O. albinus is less metabolically adapted to atmospheric pressure than O. flavus. We analyzed a number of energy-related traits (contents of glucose, glycogen and adenylates, as well as lactate dehydrogenase activity) and oxidative stress markers (activities of antioxidant enzymes and levels of lipid peroxidation products) after sampling from different depths and after both species’ acclimation to atmospheric pressure. The analyses were repeated in two independent sampling campaigns. We found no consistent signs of metabolic disturbances or oxidative stress in both species right after lifting. Despite O. flavus surviving slightly better in laboratory conditions, during long-term acclimation, both species showed comparable reactions without critical changes. Thus, the obtained data favor using O. albinus along with O. flavus for physiological research under laboratory conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Metabolic Tolerance to Atmospheric Pressure of Two Freshwater Endemic Amphipods Mostly Inhabiting the Deep-Water Zone of the Ancient Lake Baikal

Shirokova

Gurkov

Drozdova

et al. 2022

Insects

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Ecological Biochemical Adaptations in Aquatic Organisms

Немова

2023

Biol Bull Russ Acad Sci

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Ecological Biochemical Adaptations in Aquatic Organisms

Nemova

2023

Izvestiâ Akademii nauk. Rossijskaâ akademiâ nauk. Seriâ biologi

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The general ideas regarding ecological biochemical adaptations in aquatic organisms based on the results obtained by using a set of field and experimental methods over decades of research on members of marine and freshwater fish fauna and on their food items (molluscs, crustaceans) carried out by the Ecological Biochemistry Think Tank team. Examples of biochemical adaptations in aquatic organisms are provided. Certain conclusions are drawn regarding the common and specific pattern of metabolic adaptive response in the studied organisms growing and developing under normal conditions and upon changes in the environment. The results improve our understanding of the mechanisms behind ecological biochemical adaptations and their role in maintaining homeostasis in aquatic organisms.

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Lipid and fatty acid composition of scavenging amphipods Ommatogammarus spp. from different depths of lake Baikal

Cited by 4 publications

References 45 publications

Metabolic Tolerance to Atmospheric Pressure of Two Freshwater Endemic Amphipods Mostly Inhabiting the Deep-Water Zone of the Ancient Lake Baikal

Metabolic Tolerance to Atmospheric Pressure of Two Freshwater Endemic Amphipods Mostly Inhabiting the Deep-Water Zone of the Ancient Lake Baikal

Ecological Biochemical Adaptations in Aquatic Organisms

Ecological Biochemical Adaptations in Aquatic Organisms

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