Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata
AIM: Artificial sediments with simple formulations were used to assess the toxicity of Cr to C. xanthus, D. rerio and P. reticulata. METHODS: The organisms were exposed to two sediment formulations: one without organic matter (S0) and one with 1% organic matter (SIII), both contaminated with Cr at c...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Limnologia
2013-03-01
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| Series: | Acta Limnologica Brasiliensia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2013000100006&lng=en&tlng=en |
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| author | Aline Fernanda Campagna Beatriz Kawamura Rodrigues Roberta Corrêa Nogueirol Nelsy Fenerich Verani Evaldo Luiz Gaeta Espíndola Luís Reynaldo Ferracciú Alleoni |
| author_facet | Aline Fernanda Campagna Beatriz Kawamura Rodrigues Roberta Corrêa Nogueirol Nelsy Fenerich Verani Evaldo Luiz Gaeta Espíndola Luís Reynaldo Ferracciú Alleoni |
| author_sort | Aline Fernanda Campagna |
| collection | DOAJ |
| description | AIM: Artificial sediments with simple formulations were used to assess the toxicity of Cr to C. xanthus, D. rerio and P. reticulata. METHODS: The organisms were exposed to two sediment formulations: one without organic matter (S0) and one with 1% organic matter (SIII), both contaminated with Cr at concentrations of 90, 180, 360, 720 and 1440 mg/kg for the assays with C. xanthus, and 375, 750, 1500 and 3000 mg/kg for those with the two fish species. Chromium was obtained from the potassium dichromate (K2Cr2O7). RESULTS: The results of the acute toxicity tests demonstrated a reduction of up to four times in toxicity with the presence of OM, consisting of biodegradable detritus, even at the low concentration used (1%), and that C. xanthus was most sensitive to the metal. The reduction in the chromium toxicity was indicated by the LC50 values, which were higher in SIII (1234.43 mg/kg; 2263.54 m/kg; 2244.48 mg/kg) than in S0 (340.56 mg/kg; 1731.04 mg/kg; 1733.55 mg/kg) for C. xanthus, D. rerio and P. reticulata, respectively. CONCLUSIONS: Because of the repeatability of the results obtained, the artificial sediments with simple formulations were satisfactory to assess toxicity and can thus provide reliable results in ecotoxicological studies |
| first_indexed | 2024-12-20T04:09:34Z |
| format | Article |
| id | doaj.art-ecb9e431df854667b8109136a1d6e01e |
| institution | Directory Open Access Journal |
| issn | 2179-975X |
| language | English |
| last_indexed | 2024-12-20T04:09:34Z |
| publishDate | 2013-03-01 |
| publisher | Associação Brasileira de Limnologia |
| record_format | Article |
| series | Acta Limnologica Brasiliensia |
| spelling | doaj.art-ecb9e431df854667b8109136a1d6e01e2022-12-21T19:53:57ZengAssociação Brasileira de LimnologiaActa Limnologica Brasiliensia2179-975X2013-03-01251425310.1590/S2179-975X2013000100006S2179-975X2013000100006Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulataAline Fernanda Campagna0Beatriz Kawamura Rodrigues1Roberta Corrêa Nogueirol2Nelsy Fenerich Verani3Evaldo Luiz Gaeta Espíndola4Luís Reynaldo Ferracciú Alleoni5Universidade Federal de São CarlosUniversidade Federal de São CarlosUniversidade de São PauloUniversidade Federal de São CarlosUniversidade de São PauloUniversidade Federal de São CarlosAIM: Artificial sediments with simple formulations were used to assess the toxicity of Cr to C. xanthus, D. rerio and P. reticulata. METHODS: The organisms were exposed to two sediment formulations: one without organic matter (S0) and one with 1% organic matter (SIII), both contaminated with Cr at concentrations of 90, 180, 360, 720 and 1440 mg/kg for the assays with C. xanthus, and 375, 750, 1500 and 3000 mg/kg for those with the two fish species. Chromium was obtained from the potassium dichromate (K2Cr2O7). RESULTS: The results of the acute toxicity tests demonstrated a reduction of up to four times in toxicity with the presence of OM, consisting of biodegradable detritus, even at the low concentration used (1%), and that C. xanthus was most sensitive to the metal. The reduction in the chromium toxicity was indicated by the LC50 values, which were higher in SIII (1234.43 mg/kg; 2263.54 m/kg; 2244.48 mg/kg) than in S0 (340.56 mg/kg; 1731.04 mg/kg; 1733.55 mg/kg) for C. xanthus, D. rerio and P. reticulata, respectively. CONCLUSIONS: Because of the repeatability of the results obtained, the artificial sediments with simple formulations were satisfactory to assess toxicity and can thus provide reliable results in ecotoxicological studieshttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2013000100006&lng=en&tlng=enSedimento artificialcromoC. xanthusD. rerioP. reticulata |
| spellingShingle | Aline Fernanda Campagna Beatriz Kawamura Rodrigues Roberta Corrêa Nogueirol Nelsy Fenerich Verani Evaldo Luiz Gaeta Espíndola Luís Reynaldo Ferracciú Alleoni Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata Acta Limnologica Brasiliensia Sedimento artificial cromo C. xanthus D. rerio P. reticulata |
| title | Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata |
| title_full | Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata |
| title_fullStr | Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata |
| title_full_unstemmed | Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata |
| title_short | Use of artificial sediment to assess toxicity of chromium on Chironomus xanthus, Danio rerio and Poecilia reticulata |
| title_sort | use of artificial sediment to assess toxicity of chromium on chironomus xanthus danio rerio and poecilia reticulata |
| topic | Sedimento artificial cromo C. xanthus D. rerio P. reticulata |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2013000100006&lng=en&tlng=en |
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