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The chronic toxicity of emamectin benzoate to three marine benthic species using microcosms.
Cheng, Bo; Van Smeden, Jasper; Deneer, John; Belgers, Dick; Foekema, Edwin; Roessink, Ivo; Matser, Arrienne; Van den Brink, Paul J.
Afiliação
  • Cheng B; Chinese Academy of Fishery Sciences, No.150, Qingta, Yongding Road, Beijing, 100141, China; Key Laboratory of Functional Assessment of Aquatic Products Safety and Nutrition Quality of Ministry of Agriculture, No.150, Qingta, Yongding Road, Beijing, 100141, China; Aquatic Ecology and Water Quality Ma
  • Van Smeden J; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
  • Deneer J; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
  • Belgers D; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
  • Foekema E; Wageningen Marine Research, P.O. Box 57, 1780AB, Den Helder, the Netherlands.
  • Roessink I; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
  • Matser A; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands.
  • Van den Brink PJ; Aquatic Ecology and Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA, Wageningen, the Netherlands; Wageningen Environmental Research, P.O. Box 47, 6700 AA, Wageningen, the Netherlands. Electronic address: paul.vandenbrink@wur.nl.
Ecotoxicol Environ Saf ; 194: 110452, 2020 May.
Article em En | MEDLINE | ID: mdl-32171961
ABSTRACT
The commercial farming of Atlantic salmon, Salmo salar, may require the periodic application of emamectin benzoate (EB) treatments to reduce the effects of biological pests, such as sea lice. As a result, EB is detected in sediments beneath these fish farms at considerable levels. Literature sediment toxicity data for EB for marine benthic species is only available for 10-day sediment toxicity tests, which might be too short to assess field effects. Here, we present a sediment toxicity test to determine 28-day mortality and growth effect concentrations for the non-target polychaete worm Arenicola marina, the crustacean Corophium volutator and the mollusk Cerastoderma edule using a marine microcosm setup. Results indicate that no concentration-dependent increase of mortality and growth rate was apparent to A. marina and C. edule. But for C. volutator, a concentration-dependent increase in mortality was observed, resulting in a calculated 28-d LC50 of 316 µg/kg dry sediment (95% confidence interval 267-373 µg/kg dry sediment). There were significant effects on C. volutator growth rate at concentrations of 100 µg/kg dry sediment and above (NOEC = 30 µg/kg dry sediment). These observations show that C. volutator is more sensitive to EB than A. marina, which differs from results reported in previous studies. Comparison to the most sensitive NOEC (30 µg/kg dry sediment) found for C. volutator (organisms of 8-11 mm length), shows that the Environmental Quality Standard, derived by the Scottish Environment Protection Agency in 2017 which based on freshwater species data (NOEC = 1.175 µg/kg dry sediment), are relatively strict and is sufficiently protective for the marine species tested in this paper.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Ivermectina Limite: Animals Idioma: En Revista: Ecotoxicol Environ Saf Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Ivermectina Limite: Animals Idioma: En Revista: Ecotoxicol Environ Saf Ano de publicação: 2020 Tipo de documento: Article