Zooplankton as Indicator of the Ecological State of Protected Aquatic Ecosystems (Lake Borovoe, Burabay National Nature Park, Northern Kazakhstan)
| Autor: | Erlan Sadvakasov, Sophia Romanova, Natalya A. Yakovleva, Elena Krupa, Galym Dzh. Berkinbaev |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
zooplankton
Pollution lcsh:Hydraulic engineering 010504 meteorology & atmospheric sciences assessment media_common.quotation_subject Geography Planning and Development statistical mapping 010501 environmental sciences Aquatic Science 01 natural sciences Biochemistry Zooplankton Diversity index lcsh:Water supply for domestic and industrial purposes Nutrient lcsh:TC1-978 Abundance (ecology) structure 0105 earth and related environmental sciences Water Science and Technology media_common lcsh:TD201-500 Biomass (ecology) biology Ecology Aquatic ecosystem biology.organism_classification bioindication Cladocera National Natural Park Environmental science |
| Zdroj: | Water Volume 12 Issue 9 Water, Vol 12, Iss 2580, p 2580 (2020) |
| ISSN: | 2073-4441 |
| Popis: | The enrichment of the protected Borovoe Lake with nutrients has taken place within the last 100 years, from the moment the first resort was formed on its shores. The purpose of this study was to assess the current ecological state of Borovoe based on the structure of zooplankton. According to the chemical data, in the summer of 2019, the content of nutrients in the water was, relatively, not high the content of heavy metals was very low. Twenty-seven species were found in zooplankton. The average abundance of zooplankton was 988.8 thousand ind./m3 with a biomass of 1.52 g/m3. Rotifera dominated. Cladocera sub-dominated. The Shannon index values were 2.31 bit/ind. and 2.57 bit/mg the values of Clarke&rsquo s W-statistics and &Delta Shannon were negative. The abundance of zooplankton increased more than nine times, but the average individual mass of an organism decreased from 0.0112 to 0.0016 mg over the past decade. Despite the relatively low content of nutrients, the structure of zooplankton demonstrated that the nutritional load on Lake Borovoe is currently close to critical. Statistical mapping of the data and redundancy analysis (RDA) showed that the primary source of lake pollution is the village of Borovoe and sanatoriums located on the southeast and northwest coasts. |
| Databáze: | OpenAIRE |
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