Assessing the toxicity of chemical compounds associated with land-based marine fish farms: the sea urchin embryo bioassay with Paracentrotus lividus and Arbacia lixula

Archives of Environmental Contamination and Toxicology
C CarballeiraA Carballeira

Abstract

In aquaculture, disinfection of facilities, prevention of fish diseases, and stimulation of fish growth are priority goals and the most important sources of toxic substances to the environment, together with excretory products from fish. In the present study, embryos of two species of sea urchin (Paracentrotus lividus and Arbacia lixula) were exposed to serial dilutions of six antibiotics (amoxicillin (AMOX), ampicillin, flumequine (FLU), oxytetracycline (OTC), streptomycin (ST), and sulfadiazine [SFD]) and two disinfectants (sodium hypochlorite (NaClO) and formaldehyde [CH(2)O]). Alterations in larval development were studied, and the effective concentrations (ECs) were calculated to evaluate the toxicity of the substances. Both species showed similar sensitivities to all substances tested. Disinfectants (EC(50) = 1.78 and 1.79 mg/l for CH(2)O; EC(50) = 10.15 and 11.1 mg/l for NaClO) were found to be more toxic than antibiotics. AMOX, OTC, and ST caused <20 % of alterations, even at the highest concentrations tested. FLU was the most toxic to P. lividus (EC(50) = 31.0 mg/l) and SFD to A. lixula (EC(50) = 12.7 mg/l). The sea urchin bioassay should be considered within toxicity assessment-monitoring plans because of the sensitiv...Continue Reading

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Citations

Dec 3, 2014·Environmental Research·Mariana Mayer-PintoEzequiel M Marzinelli
Dec 3, 2014·The Science of the Total Environment·Mariana Mayer-Pinto, Barbara Lage Ignacio
Feb 23, 2018·Environmental Science and Pollution Research International·Carlos CarballeiraAlejo Carballeira
Jul 2, 2019·Journal of Leukocyte Biology·Adam J FikeAlison J Carey
Jul 20, 2017·Environmental Science and Pollution Research International·Marco TrifuoggiRahime Oral
Aug 25, 2021·Environmental Science and Pollution Research International·Chayma GharredTahar Gharred

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