Carbon, nitrogen, and sulfur isotope changes and hydro-geological processes in a saline lake chain

Doi, Hideyuki; Kikuchi, Eisuke; Mizota, Chitoshi; Satoh, Nobuya; Shikano, Shuichi; Yurlova, Natalia I.; Yadrenkina, Elena; Zuykova, Elena I.

doi:10.1007/s10750-004-6418-2

Cited by 27 publications

(23 citation statements)

References 34 publications

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“…EC at Stations 1-4 had low values ranging from 0.11 to 0.14 mS m )1 . The difference between Station 5 and Stations 1-4 reflects the evaporation of water and an accumulation of salt (Doi et al, 2004). Chlorophyll a showed higher values at the low EC stations (Stations 1-4).…”

Section: Resultsmentioning

confidence: 94%

“…This lake is a shallow, inland, and saline system (average depth, 2.2 m; maximum depth, 8.5 m) characteristic of the Western Siberian forest-steppe (Aladin & Plotnikov, 1993;Doi et al, 2004). Lake Chany is an enclosed water body comprised of three lakes, Bolshye Chany, Malye Chany, and Yarkul, which are connected by small channels (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Lake Chany is an enclosed water body, in which several environmental gradients, such as salinity, change horizontally between the inflowing river and the end of the lake due to no-outflowing structure of the lake and the evaporation of the lake water (Doi et al, 2004). In the estuarine zone of the shallow lake, we hypothesized that the stable isotope values of the producers and consumers may be spatially different due to environmental gradients and limitations of water movement.…”

Section: Introductionmentioning

confidence: 99%

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Spatial changes in carbon and nitrogen stable isotopes of the plankton food web in a saline lake ecosystem

et al. 2006

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We investigated spatial changes in the isotope ratios of the plankton food web in Lake Chany, Siberia, Russia, especially at an estuarine transition zone of the lake. The d 13 C values of particulate organic matter (POM) varied among the sampling sites, and increased with increasing pH of the lake water. This may reflect a shift by phytoplankton from using CO 2 to using bicarbonate for photosynthesis with increasing pH. The d 13 C values of zooplankton community also changed at each site along with those of the POM. This was indicative of carbon isotope changes of plankton food webs between the stations along an environmental gradient.

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Section: Resultsmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatial changes in carbon and nitrogen stable isotopes of the plankton food web in a saline lake ecosystem

et al. 2006

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“…Recently, Doi et al (2004Doi et al ( , 2006 demonstrated the importance of phytoplanktonic production to the zooplankton and benthic chironomid larvae in the ecosystem. The food web structure, however, has not been fully characterised, particularly in regard to the contribution of various producer groups (e.g.…”

Section: Introductionmentioning

confidence: 99%

Contribution of organic matter sources to cyprinid fishes in the Chany Lake - Kargat River estuary, western Siberia

Kanaya

Yadrenkina

Zuykova

et al. 2009

Mar. Freshwater Res.

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Although omnivorous cyprinid fish often dominate fish communities in shallow eutrophic lakes, their role in the food web is poorly known. In the present study, carbon sources of six cyprinid species were examined in a littoral freshwater habitat in a saline lake complex (Lake Chany, western Siberia, Russia) using stable isotope analyses (SIA). In this habitat, microalgae (phytoplankton and epiphytes), macrophytes and riparian vegetation comprised the major producer groups with distinctive δ 13 C values. Zooplankton and most benthic invertebrates functioned primarily as microalgae-based consumers, whereas the amphipod Gammarus lacustris depended largely on macrophytes or macrophyte-derived detritus. Cyprinids, Carassius carassius L., Car. auratus gibelio Bloch. and Abramis brama L., mainly utilised microalgae-derived carbon (δ 13 C-based isotope mixing model: 66-97%) via zooplanktonic trophic mediations. In contrast, Cyprinus carpio L., Leuciscus idus L. and Rutilus rutilus L. depended more on macrophytic and/or riparian production (52-80%) than on microalgal production. Observations and SIA of foregut contents indicated highly opportunistic feeding habits of R. rutilus and L. idus and preference for macrophytes. These results suggested that cyprinid fishes link pelagic, benthic and riparian food webs in this shallow, eutrophic lake ecosystem.Additional keywords: δ 13 C and δ 15 N, food sources, isotopic mixing model, macrophytes, omnivorous fish, phytoplankton.

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“…No permafrost underlies the Barabinsk Steppe. The lake is moderately saline, and conductivity ranges from 0.19 to 1.12 S m −1 (Doi et al 2004). The average depth of the Lake Chany complex is about 2.2 m, with a maximum depth of 8.5 m (Aladin and Plotnikov 1993).…”

Section: Introductionmentioning

confidence: 99%

Intraannual and interannual changes in the surface area of a closed lake complex in southwestern Siberia using NOAA images

et al. 2006

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The Lake Chany complex, located in southwestern Siberia, consists of large shallow lakes with an average depth of about 2.2 m. The area of the lake fluctuates with the water level, which is closely related to the amount of inflow and evaporation, as the lake complex is endorheic. Using National Oceanic and Atmospheric Administration (NOAA) satellite images of the ice-free periods from 1999 to 2004, we evaluated the seasonal changes in the lake area and surrounding vegetation of the Lake Chany complex. The maximum lake area was observed in early May and decreased until late July. The lake area in August was about 60% of the maximum. Subsequently, the area tended to increase until early October. Compared to ground-truth data, the areas undergoing seasonal fluctuations in the NOAA images corresponded to vast stands of vegetation (Phragmites australis) that were several kilometers wide. These areas seem to be influenced by the inflow of snowmelt water and reed growth. Although interannual differences in the seasonal change in lake area were not great for the whole lake complex, the isolated Yudinskii Pool showed large interannual differences during summer and autumn, suggesting that monitoring this area using NOAA images will be useful for estimating the interannual fluctuations in the southwestern Siberian environment.

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Carbon, nitrogen, and sulfur isotope changes and hydro-geological processes in a saline lake chain

Cited by 27 publications

References 34 publications

Spatial changes in carbon and nitrogen stable isotopes of the plankton food web in a saline lake ecosystem

Spatial changes in carbon and nitrogen stable isotopes of the plankton food web in a saline lake ecosystem

Contribution of organic matter sources to cyprinid fishes in the Chany Lake - Kargat River estuary, western Siberia

Intraannual and interannual changes in the surface area of a closed lake complex in southwestern Siberia using NOAA images

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