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Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant

The acute toxicity of ammonia on Thulinius ruffoi (Bertolani, 1981), a eutardigrade isolated from a small waste water treatment plant (WWTP) in Poland, was estimated. Our results show that no active individuals survived a 24 h exposure to solutions equal to or higher than 125 mg/L of total ammonia n...

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Autores principales: Sobczyk, Mateusz, Michno, Klaudia, Kosztyła, Paulina, Stec, Daniel, Michalczyk, Łukasz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646929/
https://www.ncbi.nlm.nih.gov/pubmed/26155961
http://dx.doi.org/10.1007/s00128-015-1593-6
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author Sobczyk, Mateusz
Michno, Klaudia
Kosztyła, Paulina
Stec, Daniel
Michalczyk, Łukasz
author_facet Sobczyk, Mateusz
Michno, Klaudia
Kosztyła, Paulina
Stec, Daniel
Michalczyk, Łukasz
author_sort Sobczyk, Mateusz
collection PubMed
description The acute toxicity of ammonia on Thulinius ruffoi (Bertolani, 1981), a eutardigrade isolated from a small waste water treatment plant (WWTP) in Poland, was estimated. Our results show that no active individuals survived a 24 h exposure to solutions equal to or higher than 125 mg/L of total ammonia nitrogen (NH(3)–N + NH(4)(+)–N), which, under the conditions in our experiment, was equivalent to 1.17 mg/L of un-ionised ammonia (NH(3)). The LC(50) concentration of total ammonia nitrogen was equal to 52 mg/L (or 0.65 mg/L un-ionised ammonia). Given that the norms for the concentration of ammonia in treated waters leaving WWTPs are usually several times lower than the LC(50) for T. ruffoi, this species does not seem to be a good bioindicator candidate for WWTPs. In this paper we also note that various ecotoxicological studies use different methodological approaches and we suggest that a more uniform methodology may aid interspecific comparisons of LC(50) values.
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spelling pubmed-46469292015-11-23 Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant Sobczyk, Mateusz Michno, Klaudia Kosztyła, Paulina Stec, Daniel Michalczyk, Łukasz Bull Environ Contam Toxicol Article The acute toxicity of ammonia on Thulinius ruffoi (Bertolani, 1981), a eutardigrade isolated from a small waste water treatment plant (WWTP) in Poland, was estimated. Our results show that no active individuals survived a 24 h exposure to solutions equal to or higher than 125 mg/L of total ammonia nitrogen (NH(3)–N + NH(4)(+)–N), which, under the conditions in our experiment, was equivalent to 1.17 mg/L of un-ionised ammonia (NH(3)). The LC(50) concentration of total ammonia nitrogen was equal to 52 mg/L (or 0.65 mg/L un-ionised ammonia). Given that the norms for the concentration of ammonia in treated waters leaving WWTPs are usually several times lower than the LC(50) for T. ruffoi, this species does not seem to be a good bioindicator candidate for WWTPs. In this paper we also note that various ecotoxicological studies use different methodological approaches and we suggest that a more uniform methodology may aid interspecific comparisons of LC(50) values. Springer US 2015-07-09 2015 /pmc/articles/PMC4646929/ /pubmed/26155961 http://dx.doi.org/10.1007/s00128-015-1593-6 Text en © The Author(s) 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Article
Sobczyk, Mateusz
Michno, Klaudia
Kosztyła, Paulina
Stec, Daniel
Michalczyk, Łukasz
Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title_full Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title_fullStr Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title_full_unstemmed Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title_short Tolerance to Ammonia of Thulinius ruffoi (Bertolani, 1981), a Tardigrade Isolated from a Sewage Treatment Plant
title_sort tolerance to ammonia of thulinius ruffoi (bertolani, 1981), a tardigrade isolated from a sewage treatment plant
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4646929/
https://www.ncbi.nlm.nih.gov/pubmed/26155961
http://dx.doi.org/10.1007/s00128-015-1593-6
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