Plankton of Saline Lakes in Southeastern Transbaikalia: Transformation and Environmental Factors

Afonina, Ekaterina Yu.; Ташлыкова, Н. А.

doi:10.1134/s1995425519020021

Cited by 22 publications

(20 citation statements)

References 26 publications

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“…In those extreme hypersaline waters (TDS: 70-322 gL −1 ), where the zooplankton community was represented by only the genus Artemia, the diversity was zero (Figure 5). Afonina and Tashlykova [23] obtained similar results in Southeastern Transbaikalian waters.…”

Section: The Influence Of Salinity On Zooplankton Abundance and Structuresupporting

confidence: 56%

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Zooplankton Community Structure in Shallow Saline Steppe Inland Waters

Zsuga

Inelova

Boros

2021

Water

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Several shallow saline waters can be found in Central Asia in arid steppe climate, but our knowledge of their zooplankton community has been so far rather limited. The aim of our research was to provide data on the steppe zooplankton community in a large-scale regional study. Therefore, a baseline survey was carried out in 23 shallow inland waters of different salinity in Northern Kazakhstan. We measured the quantity and identified the taxonomic composition of zooplankton in the spring period and examined changes in community structure in correlation with salinity. Lesser salt concentration of the hyposaline–mesosaline waters was indicated by the presence of halophilic rotifer species: Brachionus asplanchnoides, Br. dimidiatus, Br. plicatilis. Mesosaline and hypersaline waters were indicated by the presence of halobiont crustaceans: Moina salina, Arctodiaptomus salinus, Cletocamptus retrogressus. Very high concentration of salt was indicated by presence of Artemia alone which is the only group, that can tolerate and adapt to this extreme environment. In the hypersaline waterbodies at over 79 gL−1 high TDS conditions a very simple tropical structure was found. Artemia playing monopolistic ecological function in the zooplankton community. We identified three characteristic groups of shallow inland saline waters based on their zooplankton composition.

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Section: The Influence Of Salinity On Zooplankton Abundance and Structuresupporting

confidence: 56%

“…10. Unnamed Alona affinis was found, it tolerates a wide spectrum of salinity, up to 30 gL −1 of salt concentration [23]. With greater abundance Moina salina, was recorded, which has the highest halotolerance among all species.…”

Section: Cladocera Assemblagementioning

confidence: 91%

Zooplankton Community Structure in Shallow Saline Steppe Inland Waters

Zsuga

Inelova

Boros

2021

Water

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“…Water level and related habitat area changes, especially water level decrease and associated salinity increase, have a negative impact on species richness (Aladin et al 2009, Plotnikov 2016, Ginatullina et al 2017. For lakes that experience cyclic fluctuations of water level, a lake that experiences water volume decrease and subsequent salinity increase will not necessarily have similarities to a lake with the opposite trend (Afonina and Tashlykova 2019). Recolonization of a lake from a regional species pool after a preceding water volume decrease and salinity increase can result in altered species composition.…”

Section: Species Richness and Endangered Speciesmentioning

confidence: 99%

Overview of past, current, and future ecosystem and biodiversity trends of inland saline lakes of Europe and Central Asia

et al. 2020

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This review of trends in inland saline lakes of Europe and Central Asia is based on the relevant section of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) Regional Assessment Report for Europe and Central Asia (ECA). We assessed the present status of ECA saline lakes and the effects of direct drivers (climate change, land use, pollution, resource exploitation, invasive species) on ecosystem health and biodiversity. We also assessed past, current and future trends using habitat area and degradation, species richness, and endangered species as indicators. No uniform scenario is applicable to saline lakes in the region. The desiccation of the Aral Sea is caused mainly by land use change and water extraction. In the Caspian Sea, river modifications, water pollution, overfishing and poaching, and species invasions have led to a decrease in species richness and have threatened endemic species. Although trends for smaller saline lakes vary, our analysis demonstrates that land use change, overexploitation, and pollution are more important direct drivers of ecosystem health and biodiversity than climate change. The establishment of baseline biodiversity values for saline lakes is, however, complicated because biodiversity and the food-web structure are variable and depend strongly on salinity. Thus, there is a need to classify the ecological quality, biodiversity and ecosystem services of saline lakes along a salinity gradient. The improvement of water management and reuse of water, conservation measures, and introduction of climate-smart agriculture are basic conditions for the sustainable use of saline lakes in the region.

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“…Significant lake areas at shallow depths promoted water temperature rise and wind mixing of the water mass and its saturation with oxygen. In Lake Barun‐Torey, TDS and pH decreased during the initial refilling phase (Figures 3 and 4) (Afonina & Tashlykova, 2019a, 2021).…”

Section: Methodsmentioning

confidence: 99%

Phytoplankton and zooplankton succession during the dry–refilling cycle: A case study in large, fluctuating soda lakes

Afonina

Ташлыкова

2023

Freshwater Biology

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Aquatic ecosystems in arid regions are important habitats for aquatic wildlife and also support species biodiversity. Soda lakes in endorheic drainage basins, so‐called amplifier lakes, are sentinels of climate change and are of scientific significance. Here we present the results of a long‐term study (20 years) of the Torey lakes, Transbaikalia, Russia, including the period from the maximum capacity of the Torey lakes through to aridification, and then to the initial phase of refilling. Our aim was to determine the response of planktonic communities in the lakes to environmental change over this period. We conducted our studies during various parts of the hydrological cycle, including three phases for Lake Zun‐Torey (high [1999, 2003], intermediate [2007, 2011] and low [2014, 2016] water levels) and two phases for Lake Barun‐Torey (high level [1999, 2003] and the initial refilling phase [2014, 2016, 2018, 2020]). Lake Barun‐Torey dried up completely in summer 2009, and since 2013 has been undergoing initial refilling. Lake Zun‐Torey dried up in the autumn of 2017. Temporal variation in planktonic communities differs for each lake. We identified four stages of changes in the planktonic associations during the aridification of Lake Zun‐Torey (the phytoplankton experienced a decrease in abundance and biomass, and was dominated by green algae and diatoms; the zooplankton underwent a decrease in species diversity and an increase in total abundance and biomass, which were caused by an increase in the abundance of some crustacean species) and three stages of changes as the lake level fell and during the initial refilling of Lake Barun‐Torey (the plankton communities increased in species richness and abundance in the transient pools). These results show the complexity of long‐term community dynamics in arid‐zone soda lakes. They have revealed how phytoplankton and zooplankton community diversity and structure can vary with changing environmental conditions and may pass between distinct states related to the stages of the hydroperiod.

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Plankton of Saline Lakes in Southeastern Transbaikalia: Transformation and Environmental Factors

Cited by 22 publications

References 26 publications

Zooplankton Community Structure in Shallow Saline Steppe Inland Waters

Zooplankton Community Structure in Shallow Saline Steppe Inland Waters

Overview of past, current, and future ecosystem and biodiversity trends of inland saline lakes of Europe and Central Asia

Phytoplankton and zooplankton succession during the dry–refilling cycle: A case study in large, fluctuating soda lakes

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