Ecotoxicological impact of Zequanox®, a novel biocide, on selected non-target Irish aquatic species
| Autor: | Bridget Gruber, Sarahann M. Rackl, Sara Meehan, Frances E. Lucy, Adam J. Shannon |
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| Rok vydání: | 2014 |
| Předmět: |
Unionidae
Anodonta Quagga mussel Health Toxicology and Mutagenesis Zoology Fresh Water Astacoidea Ecotoxicology Pseudomonas fluorescens Austropotamobius pallipes Chironomidae Dreissena Water Quality Toxicity Tests Chironomus plumosus Animals Pesticides Pest Control Biological biology Ecology Public Health Environmental and Occupational Health General Medicine Mussel biology.organism_classification Crayfish Pollution Larva Zebra mussel Introduced Species Ireland |
| Zdroj: | Ecotoxicology and environmental safety. 107 |
| ISSN: | 1090-2414 |
| Popis: | Effective, species-specific zebra mussel control is needed urgently for Ireland׳s freshwater bodies, which became infested with non-native zebra mussels in the 1990s. Zequanox®, a newly commercialized product for zebra and quagga mussel control, is composed of dead Pseudomonas fluorescens CL 145A cells. This paper describes ecotoxicology tests on three representative native Irish freshwater species: Anodonta (duck mussel), Chironomus plumosus (non-biting midge), and Austropotamobius pallipes (white-clawed crayfish). The species were exposed to Zequanox in a 72-h static renewal toxicity test at concentrations of 100-750mg active ingredient per liter (mga.i./L). Water quality parameters were measured every 12-24h before and after water and product renewal. After 72h, endpoints were reported as LC10, LC50, and LC100. The LC50 values derived were (1) Anodonta: ≥500mga.i./L (2) C. plumosus: 1075mga.i./L, and (3) A. pallipes: ≥750mga.i./L. These results demonstrate that Zequanox does not negatively affect these organisms at the concentration required for >80percent zebra mussel mortality (150mg a.i/L) and the maximum allowable treatment concentration in the United Sates (200mga.i./L). They also show the overall species-specificity of Zequanox, and support its use in commercial facilities and open waters. |
| Databáze: | OpenAIRE |
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