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  • 1
    Online Resource
    Online Resource
    Hauppauge :Nova Science Publishers, Incorporated,
    Keywords: Stream ecology - Middle East. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (371 pages)
    Edition: 1st ed.
    ISBN: 9781536112726
    Series Statement: Environmental Science, Engineering and Technology
    DDC: 579.817640956
    Language: English
    Note: Intro -- ALGAL DIVERSITY DYNAMICS, ECOLOGICAL ASSESSMENT, AND MONITORING IN THE RIVER ECOSYSTEMS OF THE EASTERN MEDITERRANEAN -- ALGAL DIVERSITY DYNAMICS, ECOLOGICAL ASSESSMENT, AND MONITORING IN THE RIVER ECOSYSTEMS OF THE EASTERN MEDITERRANEAN -- Library of Congress Cataloging-in-Publication Data -- Contents -- Chapter 1: Introduction -- Algae and Cyanobacteria as Ecological Bio-Indicators -- Algae and Cyanobacteria in Monitoring of Water Quality in Rivers -- Algae and Cyanobacteria in Monitoring of Water Quality in Rivers -- Periphyton Ecology -- Descriptions of the Israeli Rivers -- The Jordan River -- The Upper Jordan River -- Environmental Conditions -- The Lower Jordan River -- Environmental Conditions -- The Qishon River -- Environmental Conditions -- The Oren River -- Environmental Conditions -- The Alexander River -- Environmental Conditions -- The Hadera River -- Environmental Conditions -- The Yarqon River -- Environmental Conditions -- The Zin River -- Environmental Conditions -- Algal and Cyanobacteria Diversity in the Environmental Assessment in Israel -- Chapter 2: Material and Methods -- Algal and Cyanobacteria Database -- Equipments -- The Algal Abundance Estimation -- Bio-Indication Methods -- pH-Classification System According to Hustedt (1938-39) -- Salinity Classification System According to Hustedt (1957) -- The Saprobic System -- The Indices of Saprobity (S) Calculation -- Environment Pollution Index (EPI) -- River Pollution Index -- Aquatic Ecosystem Sustainability Index (WESI) -- Water Quality Classification -- Bio-Assessment of Water Quality (Bio-Testing) -- Water Quality Index (WQI) -- Ecotoxicological Bioluminescent Bioassay (Bio-Test) -- Test Method -- Experimental Assessment of Algal Vegetative Activity by the Glass Slide Method (In Vitro) -- Chlorophyll Measeurments -- Statistical Approaches. , Canonical Correspondence Analysis (CCA) -- Comparative Floristic Methods -- Chapter 3: Algal Diversity and Water Quality Dynamics in the Coastal Rivers of Israel -- The Qishon River -- Results and Discussion -- Chemical Variables -- Chemical Variables in 2003 -- Chemical Variables in 2005 -- Biotest of Water Toxic Level in the Qishon River -- Pro-Organic -- Pro-Metal -- Taxonomy -- Ecology -- The Dynamics of Environmental Variables and Indicator Groups over the River -- Density/Diversity Indices and Comparison Long-Term Changes of Algal Communities -- Conclusion for the Qishon River Communities -- The Oren River -- The Oren River Algal Communities -- Conclusions for the Oren River Communities -- The Alexander River -- Algal Diversity -- Bio-Indication -- Algal Communities Change -- Conclusion for Communities of the Alexander River -- The Hadera River -- Materials -- Algal Diversity -- Water Quality -- Algal Communities Change -- Indices of Water Pollution -- Canonical Correspondence Analysis -- Conclusion for the Hadera River Algal Communities -- The Yarqon River -- Algal Diversity -- Water Quality Dynamic -- Bio-Indication -- Indices of Water Pollution -- Conclusion for the Yarqon River Algal Communities -- Chapter 4: Algal Diversity and Water Quality Dynamics in the Rift Valley Rivers -- The Upper Jordan River -- The Last Century Dynamic of the Taxonomic Structure and Bio-Indicators in the Upper Jordan River -- Taxonomic Structure and Self-Purification Dynamic in the Upper Jordan River in Present Time -- Canonical Correspondence Analysis (CCA) of Algal Communities' Seasonality -- Taxonomic Composition Analysis in the Upper Jordan River Basin -- Conclusion for the Upper Jordan River Communities Change -- The Lower Jordan River -- Algal Diversity -- Bio-Indicational Assessment -- Community -- Salinity -- Saprobity -- CCA Analysis. , Conclusion for the Lower Jordan River Communities Change -- Chapter 5: Experimental Assessment of Algal Vegetative Activity by the Glass Slides (In Vitro) Method -- The Upper Jordan River Experiment -- Conclusion for the Glass Slide Experiment in the Upper Jordan River -- The Yarqon River Experiment -- Conclusion for the Glass Slide Experiment in the Yarqon River -- The Oren River Experiment: Influence of Low Storm Discharge Assessed with Glass Slide Method -- Short Description of Experimental Study Site -- Design of Experiment -- Results of Experiment -- Rain Storms -- Storm Flow -- Base Flow -- Oren Pool -- Discussion of Experiment Results -- Conclusion for Influence of Low Storm Discharge -- Chapter 6: Eastern Mediterranean Climate Seasonality and Community Structure Change -- Algal Species Abundance -- CCA Analysis -- Conclusion for Seasonality of Algal Communities -- Chapter 7: Regional Influences on Algal Biodiversity in the Rivers of Eurasia Study Sites Description -- Study Sites Description -- Rudnaya River -- Qishon River Was Described Earlier (Figures 1, 8) -- Materials -- Rudnaya River -- Qishon River -- Comparison -- CCA Analysis -- Conclusion for the Regional Influences -- Chapter 8: Algal Communities in the Rivers of Eastern Mediterranean as Evidence of Climate Change -- Short Description of the Study Sites -- Material and Methods -- Results and Discussion -- Oren River -- Zin River -- Comparison -- Canonical Correspondence Analysis (CCA) -- Conclusion for Ecological Consequences of Climate Change -- Chapter 9: The Eastern Mediterranean Climatic Impact on the Algal Community Structure -- Similarity of Taxonomic Composition -- Taxonomic Structure Comparison -- Diversity Latitudinal Distribution -- Conclusion for the Climatic Factors Impact on the Algal Community Structure. , Chapter 10: Final Statement for Use of Algae in Water Quality Assessment and Monitoring -- The Taxonomical Structure Analysis -- Saprobity Index S -- Algal Community Dynamic -- Water Ecosystem State Index (WESI) -- Ecological Mapping of the Bio-Indications Results -- Acknowledgments -- References -- Index.
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  • 2
    Publication Date: 2023-04-26
    Description: Phytoplankton is the base of every aquatic food web. During the assessment of the trophic status of the investigated lentic water body (within Lake City Housing Complex, Mankundu, Hooghly, West Bengal, India), phytoplankton composition and its temporal variation are proved to be the most important. In this study, 30 phytoplankton taxa have been recorded in various arrangements throughout the season. The maximum number of phytoplankton species with the highest Shannon–Weaver diversity index value represented the pre-monsoon season, whereas the least number of phytoplankton taxa and the lowest diversity indicators characterized the post-monsoon season. The development of algal bloom by one specific taxon, Botryococcus braunii, in the postmonsoon season indicates the change in the trophic status of this particular water body. As a criterion for the beginning of the algal bloom, an exceedance of 1 mg/L in nitrate concentration can be considered. The phytoplankton composition, values of various diversity indices, its density and species distribution pattern, and selected environmental parameters have been investigated, as well as the results of the analysis of rank abundance curves, which allowed for evaluation of the ecological status of this lentic water body. This study describes the change or shift in the ecosystem of the investigated water body towards eutrophication and establishes its pollution level as moderate to light.
    Description: Фитопланктон является базовой единицей каждой водной пищевой сети. Для изучения трофического статуса исследованного непроточного водоема (в жилищном комплексе Лейк-Сити, Манкунду, район Хугли, Западная Бенгалия, Индия) наиболее важны состав фитопланктона и его изменение во временном масштабе. В настоящем исследовании в течение сезона были зарегистрированы 30 таксонов фитопланктона в различных комбинациях. Предмуссонный сезон был представлен максимальным количеством видов фитопланктона с наивысшим значением разнообразия Шеннона–Уивера, а постмуссонный сезон характеризовался наименьшим количеством таксонов фитопланктона и самыми низкими показателями разнообразия. Развитие цветения одного из таксонов, а именно Botryococcus braunii, в постмуссонный сезон указывает на изменение трофического статуса этого водоема. Критерием начала цветения можно считать повышение концентрации нитратов выше 1 мг/л. Нами были изучены состав фитопланктона, значения различных индексов разнообразия, его плотность и структура распределения видов, выбранные параметры окружающей среды, а также результаты анализа ранговых кривых численности, что позволило расшифровать экологический статус этого непроточного водоема. В этом исследовании показано изменение или сдвиг экосистемы исследуемого водного объекта в сторону эвтрофикации и определено состояние загрязнения на уровне от умеренного до легкого.
    Description: Published
    Description: Refereed
    Keywords: Species diversity ; Abundance ; Biomonitoring ; Trophic status ; Environmental parameters ; Botryococcus braunii ; Фитопланктон ; Предмуссонный сезон ; Биомониторинг ; Концентрации нитратов ; Трофический статус ; ASFA_2015::P::Phytoplankton ; ASFA_2015::F::Freshwater pollution ; ASFA_2015::A::Algal blooms
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.50-62
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