Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river
The effects of spatial and temporal differences on the water quality of the urban contaminated Reconquista River (Argentina) were evaluated by means of bioassays based on the growth of two algal populations (Chlorella pyrenoidosa and Scenedesmus acutus). The effects produced by the addition of cadmi...
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todo:paper_15204081_v15_n1_p14_Olguin2023-10-03T16:20:02Z Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river Olguín, H.F. Salibián, A. Puig, A. Algae Bioassay Cadmium Chlorella pyrenoidosa Freshwater Pollution Scenedesmus acutus Urban river cadmium heavy metal river water alga bioassay ecotoxicology sensitivity analysis water quality alga Argentina article bioassay biomass controlled study culture medium ecotoxicity growth nonhuman nutrient priority journal urban area water pollution indicator water quality algae Chlorella pyrenoidosa Scenedesmus acutus The effects of spatial and temporal differences on the water quality of the urban contaminated Reconquista River (Argentina) were evaluated by means of bioassays based on the growth of two algal populations (Chlorella pyrenoidosa and Scenedesmus acutus). The effects produced by the addition of cadmium and/or nutrient salts to the samples were also assayed. Noticeable differences in algal biomass were detected among samples from different sites, the highest values corresponding to the most polluted zones. The toxic effect of cadmium was more pronounced in S. acutus than in C. pyrenoidosa, particularly in the least polluted waters. The addition of nutrient salts to the culture medium attenuated heavy metal toxicity, mainly to C. pyrenoidosa, and also revealed nutrient limitation to algal growth in certain sites and dates. Site classifications based both on algal bioassays and on physical and chemical variables showed good agreement. (C) 2000 by John Wiley and Sons, Inc. Fil:Olguín, H.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Puig, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15204081_v15_n1_p14_Olguin |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Algae Bioassay Cadmium Chlorella pyrenoidosa Freshwater Pollution Scenedesmus acutus Urban river cadmium heavy metal river water alga bioassay ecotoxicology sensitivity analysis water quality alga Argentina article bioassay biomass controlled study culture medium ecotoxicity growth nonhuman nutrient priority journal urban area water pollution indicator water quality algae Chlorella pyrenoidosa Scenedesmus acutus |
| spellingShingle |
Algae Bioassay Cadmium Chlorella pyrenoidosa Freshwater Pollution Scenedesmus acutus Urban river cadmium heavy metal river water alga bioassay ecotoxicology sensitivity analysis water quality alga Argentina article bioassay biomass controlled study culture medium ecotoxicity growth nonhuman nutrient priority journal urban area water pollution indicator water quality algae Chlorella pyrenoidosa Scenedesmus acutus Olguín, H.F. Salibián, A. Puig, A. Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| topic_facet |
Algae Bioassay Cadmium Chlorella pyrenoidosa Freshwater Pollution Scenedesmus acutus Urban river cadmium heavy metal river water alga bioassay ecotoxicology sensitivity analysis water quality alga Argentina article bioassay biomass controlled study culture medium ecotoxicity growth nonhuman nutrient priority journal urban area water pollution indicator water quality algae Chlorella pyrenoidosa Scenedesmus acutus |
| description |
The effects of spatial and temporal differences on the water quality of the urban contaminated Reconquista River (Argentina) were evaluated by means of bioassays based on the growth of two algal populations (Chlorella pyrenoidosa and Scenedesmus acutus). The effects produced by the addition of cadmium and/or nutrient salts to the samples were also assayed. Noticeable differences in algal biomass were detected among samples from different sites, the highest values corresponding to the most polluted zones. The toxic effect of cadmium was more pronounced in S. acutus than in C. pyrenoidosa, particularly in the least polluted waters. The addition of nutrient salts to the culture medium attenuated heavy metal toxicity, mainly to C. pyrenoidosa, and also revealed nutrient limitation to algal growth in certain sites and dates. Site classifications based both on algal bioassays and on physical and chemical variables showed good agreement. (C) 2000 by John Wiley and Sons, Inc. |
| format |
JOUR |
| author |
Olguín, H.F. Salibián, A. Puig, A. |
| author_facet |
Olguín, H.F. Salibián, A. Puig, A. |
| author_sort |
Olguín, H.F. |
| title |
Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| title_short |
Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| title_full |
Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| title_fullStr |
Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| title_full_unstemmed |
Comparative sensitivity of Scenedesmus acutus and Chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: Studies on a highly polluted urban river |
| title_sort |
comparative sensitivity of scenedesmus acutus and chlorella pyrenoidosa as sentinel organisms for aquatic ecotoxicity assessment: studies on a highly polluted urban river |
| url |
http://hdl.handle.net/20.500.12110/paper_15204081_v15_n1_p14_Olguin |
| work_keys_str_mv |
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1807321369367543808 |