Determination of acute toxicity of ammonium in juvenile Patagonian blenny (Eleginops maclovinus)
| Autor: | A. Mardones, M. González, C. Rivas-Mancilla, R. Vega, A. Augsburger, F. Encina, P. De los Ríos |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Biology, Iss 0 (2018) |
| Druh dokumentu: | article |
| ISSN: | 1678-4375 1519-6984 |
| DOI: | 10.1590/1519-6984.186991 |
| Popis: | Abstract Deionized ammonium (NH3) acute toxicity (LC50-96h) in Patagonian blenny juveniles (Eleginops maclovinus) was assessed. Concentrations of deionized ammonium in salt water were prepared by using 24.09 ± 2.1 g ammonium chloride (NH4Cl). Fish were exposed in triplicates to different ammonium concentrations: 0.05; 0.094; 0.175; 0.325 and 0.605 mg NH3 L-1. Additionally, a control group was included. Experimental fish were kept at a photoperiod of 16:8h. Average temperatures were 16.24 ± 1.40 °C. Oxygen concentration was 7.16 ± 0.40 mg L -1. Water pH was 7.89 ± 0.2. LC50-96 h, was estimated by using Probit statistical method (95% intervals) using EPA software (1993). Juveniles of E. maclovinus showed a LC50-96h of 0.413mg NH3 L-1 value, different from most marine species. This study presents the first record of ammonium toxicity in marine species of Chile. |
| Databáze: | Directory of Open Access Journals |
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