http://www.cnr.it/ontology/cnr/individuo/prodotto/ID42294
INTERACTIONS BETWEEN TROPHIC AND TOXIC FACTORS IN A POLLUTED URBAN RIVER (Articolo in rivista)
- Type
- Label
- INTERACTIONS BETWEEN TROPHIC AND TOXIC FACTORS IN A POLLUTED URBAN RIVER (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.ecoenv.2007.01.001 (literal)
- Alternative label
VIGANÒ L., PATROLECCO L., POLESELLO S., PAGNOTTA R. (2008)
INTERACTIONS BETWEEN TROPHIC AND TOXIC FACTORS IN A POLLUTED URBAN RIVER
in Ecotoxicology and environmental safety
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- VIGANÒ L., PATROLECCO L., POLESELLO S., PAGNOTTA R. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Viganò Luisa, Polesello Stefano, Water Research Institute, CNR, 20047 Brugherio (Milan), Italy
Patrolecco Luisa, Pagnotta Romano, Water Research Institute, CNR, via Reno 1, 00198 Rome, Italy (literal)
- Titolo
- INTERACTIONS BETWEEN TROPHIC AND TOXIC FACTORS IN A POLLUTED URBAN RIVER (literal)
- Abstract
- To investigate how particulate materials and the toxicity of a polluted river can affect biomass production of a particle feeding
organism, monthly water samples of the River Lambro were collected upstream and downstream from major pollution sources. These
samples were characterized for physical and chemical endpoints, and tested for acute and chronic toxicity (7-day) using Ceriodaphnia
dubia. Comparing the effects of unfiltered and filtered water samples, we showed that: (a) despite the higher contamination of the
downstream reach, unfiltered (whole) downstream samples often supported a higher biomass production of C. dubia than upstream
samples; (b) filtering downstream water samples and thereby removing suspended particulate matter (SPM) controlled this compensatory
effect and resulted in a clear inhibition of daphnid biomass production; (c) despite the compensatory and likely nutritional role of
particulate materials, an inverse relationship was found between daphnid biomass production and the content of organic carbon of SPM,
as well as between the SPM organic content and the temperature of the river. These results show that SPM of the downstream reach can
simultaneously exert trophic and toxic effects, and their interaction determines the final result but under the control of major system
factors such as water temperature. (literal)
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