Food web analyses of the saline Lake Chany complex in Western Siberia and the survey of the environment based on NOAA images

我们进行了食物网分析的鱼类群落以及浮游生物在两个网站的河口部分的Chany湖（西西伯利亚，俄罗斯）使用碳和氮稳定同位素比值。结果表明，各站位的鱼苗流动性较低，以浮游动物为食，各站位间浮游动物食物网存在一定的空间分离。迁移的移动的食鱼捕食者结合在河口的空间隔离的食物链。成年鲤科鱼类的同位素签名显示，大型植物（或附生）生产被纳入食物网通过epifaunal食草动物和草食/bentihovorous鲤科动物的途径，虽然浮游植物发挥了重要作用，在浅水和高产的查尼湖复杂。我们可以得出结论，杂食性鲤科鱼类有助于复杂的沿岸的食物网结构，其中大型植物是一个重要的初级生产者。自然界中溶质的主要化学 ...更多信息 l来自俄罗斯西伯利亚西部的察尼湖复合体和附近湖泊的沃茨可与现代海水相媲美。溶解硫酸盐的特点是硫同位素特征显着高，值可以从类似的盐湖在北方哈萨克斯坦，咸海，湖Barhashi，和石膏矿床在阿尔泰山地区的区别。溶解硫酸盐的一个可能的来源在查尼湖盆地是从东部古生代范围，涉及下寒武统地层具有明显的重硫同位素值的一个隐藏的原生继承。我们评估的季节性变化的湖泊面积和周围的植被的Chany湖复杂的NOAA卫星图像的无冰期从1999年到2004年。与地面实况数据相比，这些地区似乎受到融雪流入和芦苇生长的影响。在孤立的Yudinskii池，观察到大的年际差异从8月到10月。Yudinskii池可能会受到降水和蒸发的年度波动的影响。因此，Yudinskii地区被认为对西伯利亚西南部的气候敏感。少

We conducted food web analyses of fish community as well as plankton at two sites in the estuarine part of Chany Lake (West Siberia, Russia) using carbon and nitrogen stable isotope ratios. The results showed that most fish fry collected had low mobility and fed on zooplankton grew in each site, and there was a spatial separation of planitonic food webs including fish fry between the sites. Migration of mobile piscivorous predators combined the spatially segregated food chains in the estuary. Isotopic signatures of adult cyprinid fishes revealed that macrophytic (or epiphytic) production was incorporated into the food web through epifaunal grazers and the herbivorous/benthivorous cyprinid pathway, though phytoplankton played an important role in the shallow and highly productive Lake Chany complex. We can conclude that omnivorous cyprinids contribute to the complex littoral food web structure where macrophytes are a significant primary producer. The major chemistry of solutes in natura … More l waters from the Lake Chany complex and nearby lakes in western Siberia, Russia, is comparable to modern seawater. Dissolved sulfates are characterized by a markedly high sulfur isotopic signature and the values can be distinguished from those in similar saline lakes in northern Kazakhstan, the Aral Sea, Lake Barhashi, and gypsum deposits in the Altai Mountains. A possible source of the dissolved sulfates in the Lake Chany basin is the inheritance of a hidden connate from eastern Paleozoic ranges that involve Lower Cambrian formations with distinctly heavy sulfur isotope values. We evaluated the seasonal changes in the lake area and surrounding vegetation of the Lake Chany complex using NOAA satellite images of the ice-free periods from 1999 to 2004. Compared to ground-truth data, the areas seem to be influenced by the inflow of snow-melt and reed growth. At the isolated Yudinskii Pool, large interannual differences were observed from August to October. Yudinskii Pool may be affected by annual fluctuation in precipitation and evaporation. Therefore, the Yudinskii area is considered sensitive to climate of southwestern Siberia. Less