Possible Relationships Between Plankton-Diatom Species Numbers and Water-Quality Estimates

Ecology ◽  
1964 ◽  
Vol 45 (4) ◽  
pp. 809-823 ◽  
Author(s):  
Louis G. Williams
Keyword(s):  
Water Quality ◽  
Diatom Species ◽  
Species Numbers

scholarly journals Bioindication of Water Quality by Diatom Algae in High Mountain Lakes of the Natural Park of Artabel Lakes, (Gümüşhane, Turkey)

2020 ◽  
Vol 22 (1) ◽  
pp. 1-28
Author(s):  
Bülent Şahin ◽  
Bülent Akar ◽  
Sophia Barinova
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Mountain Lakes ◽  
High Mountain ◽  
Diatom Species ◽  
Diatom Algae ◽  
Water Quality Standards ◽  
High Mountain Lakes ◽  
Natural Park ◽  
First Results

Abstract The first results of bioindicative analysis of water quality in the high-mountainous lakes of the Artabel Lakes Natural Park are presented using diatom species. A total of 95 diatom taxa collected in August 2013 and 2016 were identified and used as bioindicators for ten environmental variables. Bioindication, statistical methods and comparative floristic results show that the waters in all the lakes studied were fresh, low-saline, with circum-neutral pH and organically uncontaminated. The results of bioindication can be used as etalons for future monitoring of lakes in order to protect species found in the natural park, and can also be included in the national system of water quality standards in Turkey.

scholarly journals The use of epilithic diatom assemblages in assessing land use in Silago, Southern Leyte, Philippines

2019 ◽  
Vol 12 (2) ◽  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Tolerance Index ◽  
Diatom Species ◽  
Diatom Assemblages ◽  
Pollution Tolerance ◽  
Land Use Types ◽  
Freshwater Bodies ◽  
Forested Areas ◽  
Epilithic Diatom

Silago is a municipality in Southern Leyte in which logging for high-quality timber and land clearing for agricultural purposes threaten stream ecosystems. The objective of this study was to assess the response of diatom assemblages in relation to land use. Diatoms and water quality sampling was done at 27 sites on two sampling occasions (June and July 2014). Multiple diatom metrics were calculated to measure the response of diatoms to changes in land use. In all, 135 diatom species distributed to 48 genera were recorded. The results showed that diatom species and their attributes gave similar responses to those obtained in environmental variables. Pollution tolerance index classified all sampling sites as oligo-b-mesosaprobic. Meanwhile, Cymbella richness, percent motile taxa, and percent Achnanthidium minutissimum indicated good water quality in forested areas, distinguishing them from other land use types. Contrary to other studies, species richness was found to increase with greater degrees of disturbance, thus giving unreliable evaluation of water quality. Overall, the study suggests that epilithic diatoms can be applied in biomonitoring of freshwater bodies in the country.

Occurrence and ecology of Geissleria declivis

Biologia ◽  
2015 ◽  
Vol 70 (1) ◽  
Author(s):  
Barbara Rakowska ◽  
Ewelina Szczepocka
Keyword(s):  
Water Quality ◽  
Geological Structure ◽  
Diatom Species ◽  
Ecological Analysis ◽  
Water Parameters ◽  
Physico Chemical ◽  
The World ◽  
Main Components ◽  
Chemical Water ◽  
Zone Water

AbstractIn the microbenthos of the Czarna Staszowska River (south-eastern Poland), the diatom Geissleria declivis (Hustedt) Lange-Bertalot & Metzeltin, a species rarely noted in Poland, but also in Europe and the world, was recorded. In this study, the taxonomic, morphological and ecological analysis of the diatom species is presented. Also, the specific geological structure of the region of Poland, and physico-chemical water parameters of the river where the species was now observed, are described. The water of that section of the river where G. declivis occurred is included in the oligosaprobic to beta-mesosaprobic zone (Water Quality Class I-II). Limestone and gypsum are the main components of the geological structure of the river valley. Accompanying species of G. declivis were: Achnanthes pusilla (Grun.) De Toni, Amphora copulata (Kütz.) Schoem. & Arch., Fragilaria brevistriata Grun. in Van Heurck, Fragilaria pinnata Ehr., Geissleria decussis (Hust.) Lange-B. & Metz., Hippodonta capitata (Ehr.) Lange-B., Metz. & Witk., Hippodonta costulata (Grun.) Lange-B., Metz. & Witk., Navicula concentrica Carter, Navicula cryptocephala Kütz., Navicula novaesiberica Lange-B., Navicula rostellata Kütz., Nitzschia archibaldii Lange-B., Parlibellus protractoides (Hust.) Witk., Lange-B. & Metz. Taxa that are indicators of very good water quality were: Achnanthes peragalli Brun & Heribaud, Achnanthes subatomoides (Hust.) Lange-B. & Arch., Achnanthidium kranzii (Lange-B.) Round & Bukht., Cymbopleura hybrida (Grun.) Kram., Navicula densilineolata (Lange-B.) Lange-B., Navicula notha Wallace, Nitzschia fibulafissa Lange-B. Taxa preferring waters rich in calcium and chalk were: Aneumastus stroesei (Ostrup) Mann & Stickle, Diploneis parma Cleve, Hippodonta lueneburgensis (Grun.) Lange-B., Metz. & Witk., Navicula gottlandica Grun. in Van Heurck, Navicula jakovljevicii Hust., Navicula moskalii Metz., Witk. & Lange-B., Sellaphora mutatoides Lange-B. & Metz., Sellaphora pseudopupula (Krasske) Lange-B. Navicula oppugnata Hust.

Ecological groups of estuarine macrobenthic invertebrates in the Baie de Somme (France): changes in time and space

2002 ◽  
Vol 82 (5) ◽  
pp. 749-769 ◽  
Author(s):  
J.-P. Ducrotoy ◽  
F. Ibanez
Keyword(s):  
Water Quality ◽  
Environmental Factors ◽  
Seasonal Variations ◽  
Probabilistic Approach ◽  
Ecological Approach ◽  
Ecological Groups ◽  
Soft Substrate ◽  
Data Set ◽  
Species Numbers ◽  
European Programme

This work is an interpretation of a chronological data set on abundances of estuarine soft substrate invertebrates using an ecological approach. The data were collected in the framework of the European programme COST 647 (Coopération Scientifique et Technique) on coastal benthic ecology which terminated in 1992. Species numbers and selected environmental factors were recorded at two stations in the Baie de Somme (France) from 1981 to 1992. Inter-annual and seasonal variations in benthos numbers were analysed using a plotting procedure based on a non-probabilistic approach, proposed by Andrews in 1972. Ecological groups of species were identified and succession in time described, coinciding with alterations in the landings of cockles Cerastoderma edule. The chronological data set was processed through the application of the cumulated function, giving directly intensity and duration of any changes in relation to the climate and water quality, especially potential eutrophication manifestations.

scholarly journals Molecular Tools for the Selective Detection of Nine Diatom Species Biomarkers of Various Water Quality Levels

2015 ◽  
Vol 12 (5) ◽  
pp. 5485-5504 ◽  
Author(s):  
Lucia Cimarelli ◽  
Kumar Singh ◽  
Nguyen Mai ◽  
Bidhan Dhar ◽  
Anna Brandi ◽  
...  
Keyword(s):  
Water Quality ◽  
Selective Detection ◽  
Diatom Species ◽  
Molecular Tools

THE CHANGE OF WATER QUALITY AND PHYTOPLANKTON COMMUNITY STRUCTURE IN THE THI VAI RIVER BEFORE AND AFTER THE VEDAN DEEDS

2020 ◽  
Vol 27 (03) ◽  
Author(s):  
PHẠM THANH LƯU
Keyword(s):  
Waste Water ◽  
Water Quality ◽  
Community Structure ◽  
Phytoplankton Community ◽  
Diatom Species ◽  
Phytoplankton Community Structure ◽  
High Concentration ◽  
Cyanobacterial Species ◽  
Before And After ◽  
Planktonic Communities

The change of water quality and phytoplankton community structure in the Thi Vai River before and after the Vedan deeds was investigated. Canonical correspondence analysis (CCA) was applied to investigate the main environmental factors governing planktonic communities. Results showed that the Thi Vai River was seriously contaminated by discharged waste water from Vedan’s factories. The high concentration of ammonium and orgarnic comtaminants have caused low dissolved oxygen in the water. This condition has lead favorable for harmful cyanobacterial species growth. After Vedan stopped its release, water quality in term of DO, NH4+, NO3- and PO43- in the Thi Vai River has been improved. This improvement has lead to change the phytoplanktonic structure from harmful cyanobacterial species to useful diatom species that are primary producers of food for other aquatic animals.

scholarly journals Diatom Species Richness in Swiss Springs Increases with Habitat Complexity and Elevation

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 449 ◽  
Author(s):  
Lukas Taxböck ◽  
Dirk Nikolaus Karger ◽  
Michael Kessler ◽  
Daniel Spitale ◽  
Marco Cantonati
Keyword(s):  
Species Richness ◽  
Habitat Complexity ◽  
Habitat Diversity ◽  
Jaccard Index ◽  
Diatom Species ◽  
Environmental Predictors ◽  
Biodiversity Research ◽  
Species Numbers ◽  
Natural Spring ◽  
Mean Similarity

Understanding the drivers of species richness gradients is a central challenge of ecological and biodiversity research in freshwater science. Species richness along elevational gradients reveals a great variety of patterns. Here, we investigate elevational changes in species richness and turnover between microhabitats in near-natural spring habitats across Switzerland. Species richness was determined for 175 subsamples from 71 near-natural springs, and Poisson regression was applied between species richness and environmental predictors. Compositional turnover was calculated between the different microhabitats within single springs using the Jaccard index based on observed species and the Chao index based on estimated species numbers. In total, 539 diatom species were identified. Species richness increased monotonically with elevation. Habitat diversity and elevation explaining some of the species richness per site. The Jaccard index for the measured compositional turnover showed a mean similarity of 70% between microhabitats within springs, whereas the Chao index which accounts for sampling artefacts estimated a turnover of only 37%. Thus, the commonly applied method of counting 500 valves led to an undersampling of the rare species and might need to be reconsidered when assessing diatom biodiversity.

scholarly journals Genetic barcoding of Ecuadorian epilithic diatom species suitable as water quality bioindicators

2020 ◽  
Vol 343 (1) ◽  
pp. 41-52
Author(s):  
Isabel Ballesteros ◽  
Pablo Castillejo ◽  
Adriana Paulina Haro ◽  
Cuthy Cristina Montes ◽  
Carla Heinrich ◽  
...  
Keyword(s):  
Water Quality ◽  
Diatom Species ◽  
Genetic Barcoding ◽  
Epilithic Diatom

scholarly journals Evaluation of the ecological state of the major streams located in Doon valley using diatoms as indicators

2018 ◽  
Vol 10 (1) ◽  
pp. 500-506
Author(s):  
Rajbeer Singh ◽  
Prakash Nautiyal ◽  
Rachana Nautiyal
Keyword(s):  
Water Quality ◽  
Chemical Change ◽  
Ecological Integrity ◽  
Organic Pollution ◽  
Ecological State ◽  
Diatom Species ◽  
Ecosystem Integrity ◽  
Biological Communities ◽  
Doon Valley ◽  
Physical And Chemical

Biological communities reflect overall ecological integrity (i.e. chemical, physical and biological integrity). Since the diatom species exhibit variation in tolerances to physical and chemical change in water, they are excellent indicators changes in their environment. Based on the dominant categories for each characteristic, the ecological state of the stream can be determined. This study evaluates the ecological state of the streams in Doon Valley. The diatom samples collected at regular monthly intervals from the twelve streams located in the eastern and western Doon were treated with acid-peroxide and mounted in Naphrax for species count at x1500. About 250-300 valves of diatom species were counted and Van Dam ecologic values were computed by OMNIDIA ver. 5.3. pH was alkaliphilous (4), salinity - fresh brackish (2) and oxygenation - continuously high (1) for most of the streams. Saprobity and trophic status was largely β-mesosaprobous (2) and eutraphentic (5), respectively. The Leclercq index also shows non-existent (<10%) to low (10-20%) organic pollution, degradation (IDSE=3.5-3.0) and moderate anthropogenic eutrophication (20.1-45%) in most of the streams attributed to urbanization stress (62 MLD sewage). The water quality based on indices; IBD (Indice biologique diatomèes), IPS (Indice de polluo-sensibilite) and TDI (Trophic Diatom Index) showed the moderate water quality in the streams of the Valley. Like EU Water Framework Directive 2000/60/EC (WFD) India should also have the objective to ensure ecosystem integrity through bio-assessment and not just mere pollution control.

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