Application of Biodiversity Indexes to Assessment of the Water Body State and Water Quality

Протасов, А. А.; Pavlyuk, Tetiana

doi:10.1615/hydrobj.v41.i2.10

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“…Coherent changes in biota as an adaptive response to environmental conditions (Barinova and Nevo, 2012) also necessitates the analysis of internal links between the structural variables of communities. In particular, one of the debatable issues concerns the variability of size parameters and diversity of aquatic communities that expressed by the Shannon index within the gradient of external factors (Andronikova, 1996;Protasov and Pavlyuk, 2004;Penning et al, 2008). In this regard, the purpose of this work is to analyze spatial distribution of phytoplankton across the Balkhash Lake surface and to reveal the relationships between structural parameters of communities and environmental variables based on statistical mapping and 3D Surface Plots.…”

Section: Introductionmentioning

confidence: 99%

Statistical mapping and 3-D surface plots in phytoplankton analysis of the Balkhash Lake (Kazakhstan)

Krupa

Barınova

Ponamareva³

et al. 2017

Transylvanian Review of Systematical and Ecological Research

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Phytoplankton of the Balkhash Lake was represented by 91 species with average abundance of 1,002.4 mln. ind. m -3 and average biomass of 0.853 g m -3 in summer 2004. Maps of spatial distribution revealed that phytoplankton abundance was confined within the nearestuary sections of the rivers. Correlation analysis and 3D Surface Plots showed that the average mass of the algal cell decreased with increased phytoplankton abundance, species richness, and Shannon Bi index values. Synchronicity of the spatial dynamics of W-Clarke and ∆-Shannon values evidenced the possibility of obtaining information on the structure of communities by both calculated and graphical methods. REZUMAT: Cartografiere și parcelare de suprafață 3D statistice în analiza fitoplanctonului lacului Balkhash, Kazahstan.Fitoplanctonul lacului Balkhash a fost reprezentat de 91 de specii cu abundența medie 1.002,4 mln. ind. m -3 și o biomasă medie de 0,853 g m -3 , în vara anului 2004. Hărți de distribuție spațială au arătat că abundența fitoplanctonului a fost limitată în cadrul secțiunilor în apropierea estuarului râurilor. Analiza corelațiilor și parcelarea de suprafață 3D au arătat că masa medie a celulelor algale a scăzut atunci când a crescut abundența fitoplanctonului, bogăția de specii, și valorile indicelui Shannon Bi. Sincronicitatea dinamică spațială a valorilor Δ-Shannon și W-Clarke a evidențiat posibilitatea de a obține informații cu privire la structura comunităților prin metode calculate și grafice.

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Section: Introductionmentioning

confidence: 99%