title: Assessment of water quality in urban streams based on larvae of Hydropsyche angustipennis (Insecta, Trichoptera).
abstract: Hydropsyche angustipennis (Insecta, Trichoptera) larvae were used as indicators of stream contamination in the city of Łódź, Poland. The larvae of H. angustipennis were present at 9 sampling sites established for this study. Significant differences between the sampling sites were noted for environmental parameters as well as concentration of chemicals in water and biodiversity of aquatic invertebrates. Statistical analyses showed significant correlations between quantity and quality of water pollutants and density of H. angustipennis larvae, concentration of metals in larval bodies, and the appearance of morphological anomalies in tracheal gills and anal papillae. In comparison to literature data, the level of contaminants in water, including heavy metals, for each of the studied streams of Łódź was surprisingly low while concentration of these metals in the whole bodies of H. angustipennis larvae was very high. Some of the heavy metals present in the water might be identified only after conducting analyses of their concentration in the larval bodies. Therefore, long life cycle of H. angustipennis and heavy metal tolerance with a possibility of their accumulation in the larval bodies may constitute a support to traditional chemical assessment of water quality or traditional biomonitoring.
authors.affiliation: Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237, Łódź, Poland. mtszydel@biol.uni.lodz.pl.
authors.forename: Mariusz
authors.initials: M
authors.lastname: Tszydel
authors.affiliation: Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237, Łódź, Poland.
authors.forename: Marcin
authors.initials: M
authors.lastname: Markowski
authors.affiliation: Department of Experimental Zoology and Evolutionary Biology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237, Łódź, Poland.
authors.forename: Janusz
authors.initials: J
authors.lastname: Majecki
authors.affiliation: Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237, Łódź, Poland.
authors.forename: Dagmara
authors.initials: D
authors.lastname: Błońska
authors.affiliation: Department of Ecology and Vertebrate Zoology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha Str., 90-237, Łódź, Poland.
authors.forename: Mateusz
authors.initials: M
authors.lastname: Zieliński
mesh_terms: D000818:Animals; D044822:Biodiversity; D002947:Cities; D007313:Insecta / Q000737:chemistry; D007814:Larva / Q000737:chemistry; D019216:Metals, Heavy / Q000032:analysis* / Q000737:chemistry; D011044:Poland; D045483:Rivers / Q000737:chemistry; D014873:Water Pollutants / Q000032:analysis* / Q000737:chemistry; D060753:Water Quality
chemical_list: D019216:Metals, Heavy; D014873:Water Pollutants
keywords: Bioassesment metrics; Heavy metals; Sublethal effects; Trichoptera larvae; Urban streams