Comparison of fatty acid composition in major lipid classes of the dominant benthic invertebrates of the Yenisei river

Sushchik, Nadezhda N.; Gladyshev, Michail I.; Moskvichova, A.V.; Makhutova, Olesia N.; Kalachova, Galina S.

doi:10.1016/s1096-4959(02)00191-4

Cited by 110 publications

(105 citation statements)

References 22 publications

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“…In recent decades, biochemical markers and tracers -such as fatty acids (FA) and stable isotopes, which can indicate assimilated food -have been used to study the food spectra of aquatic invertebrates (e.g., [2,[11][12][13][14][15]). The utility of FA as markers of particular groups of organisms results from taxonomic peculiarities of FA composition [11,12,15].…”

Section: Introductionmentioning

confidence: 99%

“…The utility of FA as markers of particular groups of organisms results from taxonomic peculiarities of FA composition [11,12,15].…”

Section: Introductionmentioning

confidence: 99%

“…If such biomarkers are found in the lipids of aquatic animals, the source of their diet can be definitively traced [11,12,15]. Bryophytes have highly specific biomarkers, acetylenic FAs, which are not synthesized by other aquatic plants [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Water moss as a food item of the zoobenthos in the Yenisei River

Kalachova

Gladyshev²,

Sushchik³

et al. 2011

Open Life Sciences

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Abstract:Bryophytesareabundantinstreamsandareahabitatformanyinvertebrates,buttheircontributiontothedietoffluvialzoobenthos is still debated. To estimate the amount of bryophyte-derived organic matter assimilated by benthic invertebrates, we used a combinationoffattyacidandstableisotopeanalysesduringafour-yearmonthlystudyofalittoralsiteintheYeniseiRiver(Siberia, Russia).Acetylenicacids,whicharehighlyspecificbiomarkersofthewatermossFontinalis antipyretica,werefoundinlipidsof all dominant benthic animals: gammarids, ephemeropterans, chironomids and trichopterans. The dominant zoobenthic species, Eulimnogammarus viridis, had maximum levels of the biomarkers in its biomass during winter, and minimum levels in summer. The zoobenthos in the studied site regularly consume and assimilate bryophyte-derived organic matter as a minor supplemental food.Thisconsumptionincreasesinwinter,whenthemainfoodsourceofthezoobenthos,epilithicbiofilms,areprobablyscarce.©VersitaSp.zo.o.

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Section: Introductionmentioning

confidence: 99%

“…The utility of FA as markers of particular groups of organisms results from taxonomic peculiarities of FA composition [11,12,15].…”

Section: Introductionmentioning

confidence: 99%

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Water moss as a food item of the zoobenthos in the Yenisei River

Kalachova

Gladyshev²,

Sushchik³

et al. 2011

Open Life Sciences

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“…The procedure for lipid analyses of seston and hydrobionts' biomass is described in detail elsewhere (Sushchik et al 2003b;Makhutova and Khromechek 2008). Briefly, lipids from seston and Arctodiaptomus biomass were extracted by chloroform-methanol (2:1, v/v) three times.…”

Section: Biochemical Analyses Of Seston and Arctodiaptomusmentioning

confidence: 99%

“…To analyze the fatty acid composition of total lipids, part of the total lipid extract was methylated (see description below). Another part of the lipid extract was fractionated by thin-layer chromatography (TLC) on silica gel G with a solvent system for neutral lipids, as described by Sushchik et al (2003b). The lipid fraction containing triacylglycerols was scrapped from the silica gel plate (see Fig.…”

Section: Biochemical Analyses Of Seston and Arctodiaptomusmentioning

confidence: 99%

Feeding spectra of Arctodiaptomus salinus (Calanoida, Copepoda) using fatty acid trophic markers in seston food in two salt lakes in South Siberia (Khakasia, Russia)

et al. 2010

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During two vegetation seasons (2004)(2005), we compared feeding spectra of Arctodiaptomus salinus (Calanoida, Copepoda) populations inhabiting two neighboring salt lakes, Shira and Shunet, Khakasia, Russia, using fatty acid (FA) trophic markers. Sestonic FA composition in two lakes moderately differed, whereas levels of diatom FA markers were higher in Lake Shunet and of Cyanobacteria and green algae markers in Lake Shira. In general, markers in storage lipids-triacylglycerols (TAG) of A. salinusreflected the differences in sestonic composition of the two lakes. Nevertheless, TAG fraction was also enriched by FA trophic markers of the minor components of seston, which were selectively ingested by the animals. In Lake Shira, A. salinus had significantly higher concentrations of bacterial FA markers in TAG. In Lake Shunet, TAG of A. salinus contained significantly higher relative amounts of 18:4x3, 18:5x3 and C22 polyunsaturated fatty acids (PUFA), which indicated marked contribution of cryptophytes or (and) flagellates into the diet. Laboratory experiments showed feeding on Cryptomonas and sulfur purple bacteria in Lake Shunet and ciliates and colonial picoplankton in both lakes, and generally confirmed the differences in FA trophic markers in A. salinus between the lakes. The two populations of A. salinus markedly differed in levels of essential long-chain PUFA, eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids, although the levels of these FA in seston were quite similar between the two lakes. The higher levels of the essential x3 PUFA in A. salinus in Lake Shunet may be an adaptive response of the animals to a vertical stratification of physico-chemical conditions and significantly higher salinity levels at the boundary of adjacent bottom layer in this lake.

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Water quality shapes the community structure of zoobenthos in rivers but only has a minor effect on the fatty acid composition of zoobenthos and salmonids

Kesti,

Strandberg,

Taipale

et al. 2024

River Research & Apps

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Many river ecosystems in the boreal zone have faced remarkable changes due to intensive human activities, including land‐use changes in the catchments and channelization. Recently, restoration efforts have increased, hoping to restore a more natural hydromorphology. We studied the community structure of benthic macroinvertebrates (zoobenthos) in seven rivers in Eastern Finland, using samples that covered pre‐ and post‐restoration periods, to examine how environmental metrics relate to the zoobenthos community structure, and the fatty acid (FA) composition and content of Ephemeroptera, Plecoptera, and Trichoptera nymphs and larvae. We also analyzed the FA composition and content of land‐locked salmon (Salmo salar m. sebago) in three of the rivers and brown trout (Salmo trutta) in two of the rivers. Zoobenthos communities differed significantly among most of the rivers: 24% of the differences between the zoobenthos communities were driven by water quality parameters related to the loading of terrestrial organic matter (water color, pH, and iron concentration). Temporal changes in zoobenthos communities could not be fully attributed to restorations. The FA composition of zoobenthos was mostly explained by phylogenetic origin (47%). However, especially mayfly Heptagenia sulphurea (Ephemeroptera: Heptageniidae) had variable FA composition and content among the rivers suggesting an environmental quality indicator role for this species. FA composition and content of salmonids were mostly size‐dependent (24%), but river identity also influenced their FA composition (22%). Our results indicate that water quality affects the availability of essential FAs for consumers by altering the zoobenthos community structure and their FA composition and content.

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Comparison of fatty acid composition in major lipid classes of the dominant benthic invertebrates of the Yenisei river

Cited by 110 publications

References 22 publications

Water moss as a food item of the zoobenthos in the Yenisei River

Water moss as a food item of the zoobenthos in the Yenisei River

Feeding spectra of Arctodiaptomus salinus (Calanoida, Copepoda) using fatty acid trophic markers in seston food in two salt lakes in South Siberia (Khakasia, Russia)

Water quality shapes the community structure of zoobenthos in rivers but only has a minor effect on the fatty acid composition of zoobenthos and salmonids

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