title: Effects of cadmium, copper and zinc on growth of four isolated algae from a highly polluted Argentina river.
abstract: Toxicity of cadmium, copper and zinc was tested on four green algal species (Ankistrodesmus fusiformis, Chlorella ellipsoidea, Monoraphidium contortum and Scenedesmus acuminatus) isolated from a highly polluted river (Matanza-Riachuelo River, Buenos Aires, Argentina). The relative abundance of these species in river waters showed that C. ellipsoidea was the most abundant species (mean 4,540 ind mL(-1)), whereas the less abundant species was S. acuminatus (mean 220 ind mL(-1)). The most sensitive species was A. fusiformis, which EC50 were Cd = 141 μg L(-1), Cu = 72 μg L(-1), and Zn = 199 μg L(-1), whereas C. ellipsoidea was the most resistant species to copper (EC50 = 489 μg L(-1)) and cadmium (EC50 = 429 μg L(-1)), and M. contortum and S. acuminatus were the most resistant species to zinc (EC50 = 381 and 394 μg L(-1), respectively).
authors.affiliation: Higiene y Sanidad, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 4° Piso, C1113AAC, Ciudad Autónoma de Buenos Aires, Argentina, amagda65@yahoo.com.ar.
authors.forename: Anahí
authors.initials: A
authors.lastname: Magdaleno
authors.forename: Carlos Guillermo
authors.initials: CG
authors.lastname: Vélez
authors.forename: María Teresa
authors.initials: MT
authors.lastname: Wenzel
authors.forename: Guillermo
authors.initials: G
authors.lastname: Tell
mesh_terms: D001118:Argentina; D002104:Cadmium / Q000633:toxicity; D000460:Chlorophyta / Q000187:drug effects* / Q000254:growth & development; D003300:Copper / Q000633:toxicity; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000633:toxicity*; D045483:Rivers / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000633:toxicity*; D015032:Zinc / Q000633:toxicity
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D002104:Cadmium; D003300:Copper; D015032:Zinc