An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river
Results of different approaches potentially useful for the evaluation of water ambient quality were analysed and compared in a small temperate lowland river with mixed diffuse and multiple-point source pollution. The Reconquista River (Buenos Aires Province, Argentina), one of the most polluted wate...
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00496979_v155_n1-4_p355_Olguin |
| Aporte de: |
| id |
todo:paper_00496979_v155_n1-4_p355_Olguin |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_00496979_v155_n1-4_p355_Olguin2023-10-03T14:52:42Z An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river Olguín, H.F. Puig, A. Loez, C.R. Salibián, A. Topalián, M.L. Castañé, P.M. Rovedatti, M.G. Algal-bioassays Multivariate-analyses Phytoplankton Reconquista River South-America Urban-river Water-pollution Zooplankton Bioassay Microorganisms Multivariable control systems Physical chemistry Water quality Agrochemicals Phytoplanktons Zooplanktons River pollution agricultural chemical ammonia oxygen phosphate river water bioassay ecotoxicology phytoplankton river pollution zooplankton alga Argentina article bioassay biodiversity biomass Chlorella chlorella pyrenoidosa Cladocera cluster analysis conductance density diffusion domestic waste ecotoxicology effluent evaluation hardness industrial waste industry laboratory mathematics nutrient organic pollution oxygen concentration physical chemistry phytoplankton principal component analysis recording river scenedesmus acutus South and Central America stress temperature water analysis water pollution water sampling zooplankton Argentina Buenos Aires [Argentina] Reconquista River South America algae Chlorella pyrenoidosa Cladocera Crustacea Scenedesmus Scenedesmus acutus Results of different approaches potentially useful for the evaluation of water ambient quality were analysed and compared in a small temperate lowland river with mixed diffuse and multiple-point source pollution. The Reconquista River (Buenos Aires Province, Argentina), one of the most polluted watercourses of Latin America, receives agrochemicals as well as domestic and industrial (mostly untreated) effluents. Physical and chemical water variables were determined; unispecies algal bioassays (with Chlorella pyrenoidosa and Scenedesmus acutus) were earned out in laboratory; and density and structure of phyto- and zooplankton were analysed at three sites in four dates (representing a range of likely conditions in the river). A general scheme of association among plankton, bioassays and physical/chemical variables was elaborated, that helped to infer possible control factors in this multi-stressed system. Some empirical methods, but mainly mathematical ones including multivariate techniques (as PCA, cluster analysis), were applied for evaluation of samples. A preliminary selection of indices and attributes as potential indicators of the water river quality was made, and then applied for assay a tentative integrative ordination of samples. The relative best water quality was recorded when-where dissolved oxygen concentration, algal diversity and planktonic crustacean density were higher. The worst water quality corresponded to the lack of cladocerans and lowest crustacean density, and higher: organic and industrial pollution, major nutrients (ammonium and orthophosphates), BOD, hardness, conductivity, algal biomass in bioassays, phytoplankton density (>10 000 ind. mL-1), dominance of a single algal species (>90%), and rotifer proportion in zooplankton (>85%). JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00496979_v155_n1-4_p355_Olguin |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Algal-bioassays Multivariate-analyses Phytoplankton Reconquista River South-America Urban-river Water-pollution Zooplankton Bioassay Microorganisms Multivariable control systems Physical chemistry Water quality Agrochemicals Phytoplanktons Zooplanktons River pollution agricultural chemical ammonia oxygen phosphate river water bioassay ecotoxicology phytoplankton river pollution zooplankton alga Argentina article bioassay biodiversity biomass Chlorella chlorella pyrenoidosa Cladocera cluster analysis conductance density diffusion domestic waste ecotoxicology effluent evaluation hardness industrial waste industry laboratory mathematics nutrient organic pollution oxygen concentration physical chemistry phytoplankton principal component analysis recording river scenedesmus acutus South and Central America stress temperature water analysis water pollution water sampling zooplankton Argentina Buenos Aires [Argentina] Reconquista River South America algae Chlorella pyrenoidosa Cladocera Crustacea Scenedesmus Scenedesmus acutus |
| spellingShingle |
Algal-bioassays Multivariate-analyses Phytoplankton Reconquista River South-America Urban-river Water-pollution Zooplankton Bioassay Microorganisms Multivariable control systems Physical chemistry Water quality Agrochemicals Phytoplanktons Zooplanktons River pollution agricultural chemical ammonia oxygen phosphate river water bioassay ecotoxicology phytoplankton river pollution zooplankton alga Argentina article bioassay biodiversity biomass Chlorella chlorella pyrenoidosa Cladocera cluster analysis conductance density diffusion domestic waste ecotoxicology effluent evaluation hardness industrial waste industry laboratory mathematics nutrient organic pollution oxygen concentration physical chemistry phytoplankton principal component analysis recording river scenedesmus acutus South and Central America stress temperature water analysis water pollution water sampling zooplankton Argentina Buenos Aires [Argentina] Reconquista River South America algae Chlorella pyrenoidosa Cladocera Crustacea Scenedesmus Scenedesmus acutus Olguín, H.F. Puig, A. Loez, C.R. Salibián, A. Topalián, M.L. Castañé, P.M. Rovedatti, M.G. An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| topic_facet |
Algal-bioassays Multivariate-analyses Phytoplankton Reconquista River South-America Urban-river Water-pollution Zooplankton Bioassay Microorganisms Multivariable control systems Physical chemistry Water quality Agrochemicals Phytoplanktons Zooplanktons River pollution agricultural chemical ammonia oxygen phosphate river water bioassay ecotoxicology phytoplankton river pollution zooplankton alga Argentina article bioassay biodiversity biomass Chlorella chlorella pyrenoidosa Cladocera cluster analysis conductance density diffusion domestic waste ecotoxicology effluent evaluation hardness industrial waste industry laboratory mathematics nutrient organic pollution oxygen concentration physical chemistry phytoplankton principal component analysis recording river scenedesmus acutus South and Central America stress temperature water analysis water pollution water sampling zooplankton Argentina Buenos Aires [Argentina] Reconquista River South America algae Chlorella pyrenoidosa Cladocera Crustacea Scenedesmus Scenedesmus acutus |
| description |
Results of different approaches potentially useful for the evaluation of water ambient quality were analysed and compared in a small temperate lowland river with mixed diffuse and multiple-point source pollution. The Reconquista River (Buenos Aires Province, Argentina), one of the most polluted watercourses of Latin America, receives agrochemicals as well as domestic and industrial (mostly untreated) effluents. Physical and chemical water variables were determined; unispecies algal bioassays (with Chlorella pyrenoidosa and Scenedesmus acutus) were earned out in laboratory; and density and structure of phyto- and zooplankton were analysed at three sites in four dates (representing a range of likely conditions in the river). A general scheme of association among plankton, bioassays and physical/chemical variables was elaborated, that helped to infer possible control factors in this multi-stressed system. Some empirical methods, but mainly mathematical ones including multivariate techniques (as PCA, cluster analysis), were applied for evaluation of samples. A preliminary selection of indices and attributes as potential indicators of the water river quality was made, and then applied for assay a tentative integrative ordination of samples. The relative best water quality was recorded when-where dissolved oxygen concentration, algal diversity and planktonic crustacean density were higher. The worst water quality corresponded to the lack of cladocerans and lowest crustacean density, and higher: organic and industrial pollution, major nutrients (ammonium and orthophosphates), BOD, hardness, conductivity, algal biomass in bioassays, phytoplankton density (>10 000 ind. mL-1), dominance of a single algal species (>90%), and rotifer proportion in zooplankton (>85%). |
| format |
JOUR |
| author |
Olguín, H.F. Puig, A. Loez, C.R. Salibián, A. Topalián, M.L. Castañé, P.M. Rovedatti, M.G. |
| author_facet |
Olguín, H.F. Puig, A. Loez, C.R. Salibián, A. Topalián, M.L. Castañé, P.M. Rovedatti, M.G. |
| author_sort |
Olguín, H.F. |
| title |
An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| title_short |
An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| title_full |
An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| title_fullStr |
An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| title_full_unstemmed |
An integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| title_sort |
integration of water physicochemistry, algal bioassays, phytoplankton, and zooplankton for ecotoxicological assessment in a highly polluted lowland river |
| url |
http://hdl.handle.net/20.500.12110/paper_00496979_v155_n1-4_p355_Olguin |
| work_keys_str_mv |
AT olguinhf anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT puiga anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT loezcr anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT salibiana anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT topalianml anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT castanepm anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT rovedattimg anintegrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT olguinhf integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT puiga integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT loezcr integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT salibiana integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT topalianml integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT castanepm integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver AT rovedattimg integrationofwaterphysicochemistryalgalbioassaysphytoplanktonandzooplanktonforecotoxicologicalassessmentinahighlypollutedlowlandriver |
| _version_ |
1807319165569073152 |