N. G. Sheveleva, Ch. Ayushsuren, A. V. Nepokrytykh, N. Tuvshinzhargal, L. V. Sukhanova
{"title":"Composition and Productivity of Zooplankton as a Food Resource for Fish from Lake Dood Tsagaan (Darkhad Depression, Mongolia)","authors":"N. G. Sheveleva, Ch. Ayushsuren, A. V. Nepokrytykh, N. Tuvshinzhargal, L. V. Sukhanova","doi":"10.1134/s1875372823050165","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The species composition, abundance, biomass, and productivity of zooplankton have been studied in different biotopes of Lake Dood Tsagaan in July 2022. Concerning to the qualitative composition, the lake community is characterized as cladoceran–copepod and almost equally represented by cladoceran and copepod crustaceans. Based on biomass data, dominant species have been identified in the nearshore and deepwater zones of the lake. The copepods <i>Mixodiaptomus incrassatus</i> (Sars), <i>Arctodiaptomus paulseni</i> (Sars), <i>Arctodiaptomus anudarini</i> Borutzky, <i>Mesocyclops leuckarti</i> (Claus), and <i>Cyclops scutifer</i> (Sars) were dominant in biomass in all biotopes of the lake. The mean zooplankton abundance in the lake was 86 300 ± 24 300 ind./m<sup>3</sup> and biomass was 1463.7 ± 415 mg/m<sup>3</sup>. The qualitative and quantitative indicators of zooplankton have not significantly changed over the last 60 years. With respect to the quantitative characteristics of zooplankton, the trophic status of the lake can be considered as a-mesotrophic, with a medium food supply for planktophagous fishes.</p>","PeriodicalId":44739,"journal":{"name":"Geography and Natural Resources","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geography and Natural Resources","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1134/s1875372823050165","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The species composition, abundance, biomass, and productivity of zooplankton have been studied in different biotopes of Lake Dood Tsagaan in July 2022. Concerning to the qualitative composition, the lake community is characterized as cladoceran–copepod and almost equally represented by cladoceran and copepod crustaceans. Based on biomass data, dominant species have been identified in the nearshore and deepwater zones of the lake. The copepods Mixodiaptomus incrassatus (Sars), Arctodiaptomus paulseni (Sars), Arctodiaptomus anudarini Borutzky, Mesocyclops leuckarti (Claus), and Cyclops scutifer (Sars) were dominant in biomass in all biotopes of the lake. The mean zooplankton abundance in the lake was 86 300 ± 24 300 ind./m3 and biomass was 1463.7 ± 415 mg/m3. The qualitative and quantitative indicators of zooplankton have not significantly changed over the last 60 years. With respect to the quantitative characteristics of zooplankton, the trophic status of the lake can be considered as a-mesotrophic, with a medium food supply for planktophagous fishes.
期刊介绍:
Geography and Natural Resources publishes information on research results in the field of geographical studies of nature, the economy, and the population. It provides ample coverage of the geographical aspects related to solving major economic problems, with special emphasis on regional nature management and environmental protection, geographical forecasting, integral regional research developments, modelling of natural processes, and on the advancement of mapping techniques. The journal publishes contributions on monitoring studies, geographical research abroad, as well as discussions on the theory of science.