Feeding spectra of bivalve mollusks Unio and Dreissena from Kanevskoe Reservoir, Ukraine: are they food competitors or not?

Makhutova, Olesia N.; Протасов, А. А.; Gladyshev, Michail I.; Sylaieva, Anzhelika; Sushchik, Nadezhda N.; Morozovskaya, I. A.; Kalachova, Galina S.

doi:10.1186/1810-522x-52-56

Cited by 34 publications

(12 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, it should be noted that some 20:1 acids are markers of mollusks [70]. However, the migratory species from the Keret River, C. lavaretus, did not have an explicitly higher level of Σ20:1, and lower level of 20:4n-6 than land-locked species.…”

Section: Discussionmentioning

confidence: 89%

“…However, the migratory species from the Keret River, C. lavaretus, did not have an explicitly higher level of Σ20:1, and lower level of 20:4n-6 than land-locked species. In addition, it should be noted that some 20:1 acids are markers of mollusks [70]. Indeed, C. nasus from the Yenisei River, which consumed primarily mollusks, had a comparatively high level of Σ20:1.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Gladyshev

Sushchik

Makhutova

et al. 2017

Lipids

View full text Add to dashboard Cite

In several Russian northern lakes and rivers, Arctic cisco Coregonus autumnalis, least cisco C. sardinella, peled C. peled, tugun C. tugun, broad whitefish C. nasus, whitefish C. lavaretus and vendace C. albula were sampled in periods of officially permitted commercial fishery. Special attention was paid to contents (mg g of wet weight) of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in muscle tissues (filets), which are essential for human nutrition. The highest values of EPA + DHA content in semi-anadromous fish and freshwater fish were recorded for C. autumnalis from the Yenisei River, 17.60 mg g wet weight, and for C. lavaretus from the Sobachye Lake, 16.61 mg g wet weight, respectively. Intra-genus variations of EPA + DHA contents of Coregonus species were from 1.87 to 17.60 mg g wet weight. Since the congeneric species were genetically close to each other, the variations in EPA and DHA contents were thought to be caused primarily by ecological factors: migrational capability, type of feeding and trophic status of aquatic ecosystems. In general, the majority of studied species appeared to be of a high nutritive value for humans, although unfavorable environmental conditions could considerably diminish this value.

show abstract

Section: Discussionmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Gladyshev

Sushchik

Makhutova

et al. 2017

Lipids

View full text Add to dashboard Cite

show abstract

“…Unlike other PUFAs, DHA is commonly absent or occurs only in trace levels in the majority of insect taxa (Stanley-Samuelson et al, 1988;Rumpold & Schluter, 2013;Sanchez-Muros et al, 2014; but see Lau et al, 2012), and in modest levels in terrestrial vertebrates (Hulbert, Rana & Couture, 2002;Valencak & Ruf, 2007), but occurs in high or moderate amounts in other noninsect aquatic invertebrates and fish Makhutova et al, 2013). We found that corixids, especially C. coleoptrata, had the highest mass-specific DHA content thus far reported for insects and, at 0.20-0.37 mg g À1 wet weight, were two to fourfold higher than other aquatic insects Kalacheva et al, 2013;Sushchik et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions

et al. 2016

View full text Add to dashboard Cite

Summary Aquatic systems are considered to be a main source of essential long‐chain n‐3 polyunsaturated fatty acids (PUFA), which are preferentially synthesized by microalgae and transferred along food chains to terrestrial consumers. Emerging aquatic insects comprise a significant part of this transfer of the essential PUFA from water to land. Quantitative data on PUFA content and composition are available mainly for rheophilic insects while taxa that are characteristic of wetlands and stagnant water bodies, such as aquatic Heteroptera, remain relatively unstudied. We investigated the role of various waterbug taxa (Heteroptera: Nepomorpha and Gerromorpha) inhabiting different ecoregions in temperate Central Siberia (Russia) as potential sources of PUFA. The ecoregions were steppe, forest‐steppe, hemiboreal forest and montane coniferous forest. Although these waterbugs insects are aquatic in both larval and adult stages, they can disperse through the landscape and transfer essential PUFAs from water to land so making them potentially available to terrestrial consumers. Species of Naucoridae, Notonectidae and Corixidae were generally dominant in all ecoregions, attaining maximum biomass in the steppe. We showed that habitat or ecoregion played a major role in the variability of fatty acid composition of Notonectidae and Gerridae but not Corixidae. In contrast, the biochemical composition of the only naucoridae, Ilyocoris cimicoides, was largely affected by life stage. Both the dominant families and species within them differed with respect to their mass‐specific contents of essential long‐chain PUFA of the n‐3 family, namely eicosapentaenoic and docosahexaenoic acids. Corixid species had the highest content of these two essential PUFAs among the waterbug studies, and relative to literature reports for other aquatic insects. Corixids thus appear to be a potentially important vector for transfer of the essential biochemical compounds from water to land, especially in steppe ecoregions with numerous ephemeral water bodies.

show abstract

“…In addition, utilisation of both suspended (i.e. water column) and benthic food resources could provide mussels with opportunistic dietary alternatives, depending on the relative availabilities of these resources over time (Nichols et al ., ; Makhutova et al ., ). Recent studies have demonstrated that consumers occupying lower trophic levels in freshwater ecosystems can rely to a significant extent on allochthonous OM originating in associated watersheds (Rounick, Winterbourn & Lyon, ; Caraco & Cole, ; Cole, ).…”

Section: Introductionmentioning

confidence: 99%

Assessment of nutritional subsidies to freshwater mussels using a multiple natural abundance isotope approach

2017

View full text Add to dashboard Cite

Summary Freshwater mussels are a particularly imperilled group of aquatic organisms. To date, there is limited understanding of their dietary and nutritional subsidies, including those from both autochthonous (aquatic) and allochthonous (terrestrial) sources. The aim of this study was to evaluate the relative contributions of potential nutritional resources to mussel biomass using a Bayesian mixing model (MixSIAR) for (i) bulk suspended versus benthic organic matter (OM) pools, (ii) general autochthonous versus allochthonous OM sources and (iii) specific individual OM sources. Nutritional subsidies of five species of freshwater mussels were assessed using natural abundance stable isotopes (δ13C, δ15N, δ2H) and natural radiocarbon (Δ14C). The ranges for each of the four isotopes were similar across all species and sampling dates, and mussel δ13C and δ15N values were similar to those measured in previous studies. Despite relatively low variability in this study, species and temporal differences in mussel δ15N, δ2H and Δ14C values were generally significant (P < 0.05). Based on δ13C values alone, bulk suspended OM subsidised mussel biomass to a greater extent than bulk benthic OM (c. 60 and 40% respectively). Modelling of multiple isotopes indicated that while the collective allochthonous nutritional sources accounted for a significant part (c. 33%) of mussel biomass, autochthonous materials collectively subsidised mussel tissue at about twice this level (c. 67). Significant amounts of 14C‐depleted aged carbon were incorporated into freshwater mussel tissue (mean equivalent 14C age = 1325 ± 68 years BP). Potential nutritional sources were also mostly aged, including benthic algae (1226 ± 556 years BP), zooplankton (1682 years BP), terrestrial soil (10 588 ± 4330 years BP) and suspended particulate OM (1443 ± 57 years BP). No single potential individual nutritional OM source explained the multiple isotopic values of freshwater mussel tissue, indicating that these organisms have a multi‐source and potentially opportunistic diet. Benthic algae and phytoplankton were quantitatively the most important individual OM subsidies to freshwater mussel nutrition at our study site (27 and 19% respectively). Observed seasonal shifts in freshwater mussel isotopic values were minimal, suggesting (i) that mussels may not be seasonally limited by individual nutritional resources and/or (ii) the replacement times of C, N and H in freshwater mussel tissues make detection of temporal nutritional subsidy shifts – if they occur – difficult to discern.

show abstract

Feeding spectra of bivalve mollusks Unio and Dreissena from Kanevskoe Reservoir, Ukraine: are they food competitors or not?

Cited by 34 publications

References 65 publications

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Fatty Acid Composition and Contents of Seven Commercial Fish Species of Genus Coregonus from Russian Subarctic Water Bodies

Waterbugs (Heteroptera: Nepomorpha and Gerromorpha) as sources of essential n‐3 polyunsaturated fatty acids in Central Siberian ecoregions

Assessment of nutritional subsidies to freshwater mussels using a multiple natural abundance isotope approach

Contact Info

Product

Resources

About