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  • 1
    Online Resource
    Online Resource
    The Role of Planktonic Algae in the Ecological Assessment of Storage-Reservoirs of the ILI-Balkhash Basin
    Walter de Gruyter GmbH ; 2018
    In:  Transylvanian Review of Systematical and Ecological Research Vol. 20, No. 2 ( 2018-2-1), p. 1-14
    Details
    In: Transylvanian Review of Systematical and Ecological Research, Walter de Gruyter GmbH, Vol. 20, No. 2 ( 2018-2-1), p. 1-14
    Abstract: The largest wastewater treatment systems include Sorbulak and Kurty reservoirs, and the small storage ponds were studied in the summer of 2017 and characterized mainly by organic pollution. Phytoplankton communities were represented by species tolerant of organic and toxic pollution. Cyanobacteria dominated in the reservoirs, and dinophyte algae were only in the Kurty Reservoir. According to the results of CCA analysis, only Cr and certain nutrients had a significant effect on the abundance of algae. A statistically positive significant association between the Shannon index and the average algal cell mass was established. The results obtained are a particular example reflecting the non-linearity of changes in plankton communities in the gradient of nutrient loading and eutrophication of aquatic ecosystems.
    Type of Medium: Online Resource
    ISSN: 2344-3219
    URL: Article
    DOI: 10.2478/trser-2018-0008
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2018
    detail.hit.zdb_id: 2628169-7
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  • 2
    Online Resource
    Online Resource
    Planktonic Invertebrates in the Assessment of Long-Term Change in Water Quality of the Sorbulak Wastewater Disposal System (Kazakhstan)
    MDPI AG ; 2020
    In:  Water Vol. 12, No. 12 ( 2020-12-04), p. 3409-
    Details
    In: Water, MDPI AG, Vol. 12, No. 12 ( 2020-12-04), p. 3409-
    Abstract: The multicomponent composition of wastewater makes it challenging to assess its quality objectively, but the last one is a prerequisite for the safe re-use of wastewater. The solution to this problem should be aimed at finding criteria that make it possible to increase the objectivity of assessing the water quality of reservoirs with multicomponent pollution. This work analyzes the water quality of the Sorbulak wastewater disposal system in the summer of 2017, based on chemical variables and zooplankton structure and assess the long-term changes in the water quality of Sorbulak. According to the Kruskal–Wallis test, in 2017, the differences between the studied water bodies in the content of nutrients and heavy metals were mostly insignificant. From 2000–2002 to 2017, nitrate, nitrite nitrogen, and heavy metals in Sorbulak significantly decreased. Zooplankton communities consisted of a relatively small number of eurybiontic species resistant to environmental factors. The variability of the quantitative variables of zooplankton was associated with the nutrients. Males dominated the population of the cyclopoid copepods Acanthocyclops trajani. In 2000–2002 individuals with morphological anomalies were found in cyclopoid copepods populations, but were absent in 2017. The appearance of individuals with morphological anomalies was associated with copper or lead. The chemical data and structure of zooplankton communities indicated that the toxic pollution of Sorbulak decreased by 2017 compared to 2000–2002. Our results demonstrate that the structural variables of zooplankton communities could be successfully used to assess the water quality of water bodies with mixed pollution. We recommend using not only the traditional set of biological variables (abundance, biomass, diversity indices, and the average mass of an individual), but also data on the structure of species dominance, the sex structure of copepod populations, and the presence of individuals with morphological anomalies for monitoring of water bodies with mixed pollution.
    Type of Medium: Online Resource
    ISSN: 2073-4441
    URL: Article
    DOI: 10.3390/w12123409
    Language: English
    Publisher: MDPI AG
    Publication Date: 2020
    detail.hit.zdb_id: 2521238-2
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  • 3
    Online Resource
    Online Resource
    Ecological Mapping in Assessing the Impact of Environmental Factors on the Aquatic Ecosystem of the Arys River Basin, South Kazakhstan
    MDPI AG ; 2019
    In:  Diversity Vol. 11, No. 12 ( 2019-12-12), p. 239-
    Details
    In: Diversity, MDPI AG, Vol. 11, No. 12 ( 2019-12-12), p. 239-
    Abstract: Assessment of the water quality of the Arys River basin based on the spatial distribution of richness of phytoperiphyton communities and abiotic variables was given for the first time. Altogether, 82 species were revealed in phytoperiphyton, including Bacillariophyta of 51, Cyanobacteria of 20, Chlorophyta of 7, and Charophyta of 4. Cluster analysis revealed the uniqueness of the composition of periphyton communities related to the abiotic conditions. The environmental preferences of the algae indicated fresh organic pollution in the lower reaches of the Arys River and weak or moderate levels of organic pollution in the rest of the basin. The ecological mapping of chemical data generally confirmed this conclusion. According to the maps, the highest water quality was revealed in the upper stream of the basin. The middle part of the river basin had the lowest water quality in terms of transparency, nitrite-nitrogen, and nitrate-nitrogen. The downstream of the Arys was characterized by a secondary deterioration in water quality according to the Aquatic Ecosystem State Index (WESI) index. We revealed the complicated interaction between natural and anthropogenic factors that caused changes in water quality in the Arys River basin.
    Type of Medium: Online Resource
    ISSN: 1424-2818
    URL: Article
    DOI: 10.3390/d11120239
    Language: English
    Publisher: MDPI AG
    Publication Date: 2019
    detail.hit.zdb_id: 2518137-3
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  • 4
    Online Resource
    Online Resource
    How Valentin Krassilov’s Ideas Determined the Development of Evolutionary Theory
    Botanical Garden - Institute of the Far Eastern Branch of the RAS ; 2015
    In:  Botanica Pacifica Vol. 4, No. 2 ( 2015-11-15)
    Details
    In: Botanica Pacifica, Botanical Garden - Institute of the Far Eastern Branch of the RAS, Vol. 4, No. 2 ( 2015-11-15)
    Type of Medium: Online Resource
    ISSN: 2226-4701 , 2410-3713
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.17581/bp.2014.042
    DOI: 10.17581/bp
    DOI: 10.17581/bp.2015.04220
    Language: Unknown
    Publisher: Botanical Garden - Institute of the Far Eastern Branch of the RAS
    Publication Date: 2015
    detail.hit.zdb_id: 2778050-8
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  • 5
    Online Resource
    Online Resource
    The influence of the monsoon climate on phytoplankton in the Shibpukur pool of Shiva temple in Burdwan, West Bengal, India
    MDPI AG ; 2012
    In:  Limnological Review Vol. 12, No. 2 ( 2012-12-1), p. 47-63
    Details
    In: Limnological Review, MDPI AG, Vol. 12, No. 2 ( 2012-12-1), p. 47-63
    Abstract: A total of 44 taxa were observed in monthly sampled phytoplankton of the Shibpukur pool in Burdwan, West Bengal between March, 2010 and February, 2011. The most abundant taxa belong to Charophyta, followed by cyanobacteria, diatoms and euglenoids. Bio-indication shows that the pool community preferred low alkaline, low mineralized and low organically polluted water. The total phytoplankton density showed its maximum values in May, 2010. The Shannon-Weaver diversity index and the Pielou evenness value were found to be highest during the post-monsoon season. The Simpson dominance index and the Margalef index of richness were highest in the pre-monsoon season. The total phytoplankton density showed a highly significant positive correlation with pH and salinity and significant positive correlation with air temperature, water temperature, dissolved oxygen and total suspended solids. Among the reported 44 phytoplankton taxa only 3 showed a random distributional pattern. The Bray-Curtis Cluster analysis and the comparative statistics reveal two groups of phytoplankton assemblages in respect to the monsoon seasons. The successive communities form a continuum corresponding to Colwell’s Constancy (C) category. The calculated indices, CCA, and bio-indication analysis exhibit a low pollution level in the Shibpukur pool that can be used as a model of aquatic community dynamics under seasonal fluctuation in the monsoon climate, applicable for monitoring of water bodies in the West Bengal Province
    Type of Medium: Online Resource
    ISSN: 1642-5952
    URL: Article
    DOI: 10.2478/v10194-011-0044-y
    Language: Unknown
    Publisher: MDPI AG
    Publication Date: 2012
    detail.hit.zdb_id: 2759409-9
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    Assessment of River-Sea Interaction in the Danube Nearshore Area (Ukraine) by Bioindicators and Statistical Mapping
    MDPI AG ; 2021
    In:  Land Vol. 10, No. 3 ( 2021-03-18), p. 310-
    Details
    In: Land, MDPI AG, Vol. 10, No. 3 ( 2021-03-18), p. 310-
    Abstract: There is a lack of understanding of the main drivers that form the picture of biological communities of transitional waters in deltaic ecosystems under the influence of terrestrial sources. Analysis of hydrochemical parameters in relation to phytoplankton communities in the Ukrainian part of the Danube coastal zone (in August 2018) is the focus of current work. The goal was to identify patterns in the distribution of environmental parameters (salinity and nutrients) in the area of the shipping channel through the Bystry arm, as well as to assess the state of water quality. The ecological bioindicators approach using modern statistical methods, and ecological mapping shows sufficient achievements in interpreting the results. The indicators of salinity (mesohalobes) had better describe the character of the transportation of fresh riverine waters than salinity gradient. The composition of 35 indicator phytoplankton species corresponds to 3 and 4 water quality classes in the coastal zone. High N:P ratios showed an imbalance in the ecosystem as an indicator of production and destruction processes. Statistical maps of the indicator species distribution revealed the river current’s influence on the nearshore water mass. Ecological maps of surface and bottom variables show various environmental impacts resulting from dredging in the shipping channel and excavated soil dumping. Canonical correspondence analysis (CCA) and statistical maps revealed two pools of factors with oppositely directed effects on phytoplankton: salinity, on one hand, and nutrients, on the other. Miozoa and Chlorophyta have an opposite interaction with salinity and oxygen and can be ecosystem change indicators in further analysis
    Type of Medium: Online Resource
    ISSN: 2073-445X
    URL: Article
    DOI: 10.3390/land10030310
    Language: English
    Publisher: MDPI AG
    Publication Date: 2021
    detail.hit.zdb_id: 2682955-1
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  • 7
    Online Resource
    Online Resource
    Diversity and seasonal variation of phytoplankton community in the Santragachi Lake, West Bengal, India
    Hamad bin Khalifa University Press (HBKU Press) ; 2012
    In:  QScience Connect Vol. 2012, No. 1 ( 2012-01-27)
    Details
    In: QScience Connect, Hamad bin Khalifa University Press (HBKU Press), Vol. 2012, No. 1 ( 2012-01-27)
    Abstract: The study of phytoplankton diversity and its seasonal variation was carried out by sampling water taken from the Santragachi Lake, of West Bengal between November 2009 and July 2010. Various physico-chemical variables were recorded and the correlation of this with phytoplankton density was established using Canonical Correspondence Analysis. This showed that the density of phytoplankton was higher when temperature and nutrients were increased. A total of 29 phytoplankton taxa belonging to Chlorophyta (10), Cyanobacteria (8), Charophyta (5), Bacillariophyta (4), and Euglenozoa (2) were recorded from nine samples taken within the study period. Chlorophyta species dominated mostly in variety and percentage composition while Euglenozoa species representatives had the least expression. Bio-indication showed a low diverse community in the monsoon period with better water quality than in pre- and post-monsoon seasons. Various diversity indices (Shannon–Wiener diversity index, Gleason species richness index, Pielou evenness index, and Naughton dominance index) were used to establish the seasonal variation of phytoplankton. The Shannon–Wiener diversity index was most useful in indicating the trophic status of the water as well as the pollution status, which in this case, depicted a moderate level of pollution of this lake.
    Type of Medium: Online Resource
    ISSN: 2223-506X
    URL: Article
    DOI: 10.5339/connect.2012.3
    Language: English
    Publisher: Hamad bin Khalifa University Press (HBKU Press)
    Publication Date: 2012
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  • 8
    Online Resource
    Online Resource
    Comparative analysis of algal biodiversity in the rivers of Israel
    Walter de Gruyter GmbH ; 2011
    In:  Open Life Sciences Vol. 6, No. 2 ( 2011-4-1), p. 246-259
    Details
    In: Open Life Sciences, Walter de Gruyter GmbH, Vol. 6, No. 2 ( 2011-4-1), p. 246-259
    Abstract: Comparative analysis of algal communities in the rivers of Israel was completed to highlight the influence of environmental variables on biodiversity. The study revealed that 671 species of algae and cyanobacteria belonging to nine taxonomic divisions were present during 2002–2009 in the Yarqon, Alexander, Hadera, Qishon, Oren, Lower and Upper Jordan, and Zin rivers. The species richness of each river was evaluated by taxonomic structural comparison, geobotanical, hierarchical cluster analysis, and the degree of relatedness for different levels of taxonomic resolution. The analysis revealed close similarity of the Upper Jordan and Oren rivers. The average taxonomic distinctness index showed that the Yarqon, Oren, Upper Jordan, and Qishon communities were partly degraded due to permanent environmental disturbances. The variation in taxonomic distinctness index showed that the Alexander, Yarqon and Hadera communities were formed not only due to anthropogenic factors but also through long-term climatic impact. The most abundant indicator species inhabit low streaming and standing alkaline waters of medium salinity and low to medium organic pollution. The statistical approaches allowed discrimination between climatic and anthropogenic factors that impact upon the riverine biodiversity in semi-arid environments. Analysis shows the influence of anthropogenic factors was strongly modulated by climatic impacts causing a marked decease of species richness from north to south.
    Type of Medium: Online Resource
    ISSN: 2391-5412
    URL: Article
    DOI: 10.2478/s11535-010-0108-z
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2011
    detail.hit.zdb_id: 2817958-4
    SSG: 12
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  • 9
    Online Resource
    Online Resource
    Morphological peculiarities productive shoots and pollinators of 〈i〉Astilbe chinensis〈/i〉
    Petrozavodsk State University ; 2016
    In:  HORTUS BOTANICUS Vol. 11, No. 11 ( 2016-01), p. 172-183
    Details
    In: HORTUS BOTANICUS, Petrozavodsk State University, Vol. 11, No. 11 ( 2016-01), p. 172-183
    Type of Medium: Online Resource
    ISSN: 1994-3849
    Uniform Title: Морфологические особенности репродуктивных побегов и опылители 〈i〉Astilbe chinensis〈/i〉
    URL: Issue
    URL: Journal
    URL: Article
    DOI: 10.15393/j4.issue.2016.5981
    DOI: 10.15393/j4.journal
    DOI: 10.15393/j4.art.2016.3282
    Language: English , Russian
    Publisher: Petrozavodsk State University
    Publication Date: 2016
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  • 10
    Online Resource
    Online Resource
    Charophyte Community in the Lowermost Locality in the World Near the Dead Sea, Israel
    Sciencedomain International ; 2015
    In:  International Journal of Plant & Soil Science Vol. 6, No. 4 ( 2015-01-10), p. 229-243
    Details
    In: International Journal of Plant & Soil Science, Sciencedomain International, Vol. 6, No. 4 ( 2015-01-10), p. 229-243
    Type of Medium: Online Resource
    ISSN: 2320-7035
    URL: Journal
    URL: Article
    DOI: 10.9734/IJPSS
    DOI: 10.9734/IJPSS/2015/16063
    Language: Unknown
    Publisher: Sciencedomain International
    Publication Date: 2015
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