Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb
The toxic effect of cadmium, chromium, copper, mercury, manganese, nickel and lead on adult <i>Acanthocyclops americanus</i>copepods was evaluated to determine the sensitivity of this species to these metals. Toxicity tests were carried out to determine the LC<sub>50</sub>, a...
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AIMS Press
2020-05-01
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| Series: | AIMS Environmental Science |
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| Online Access: | http://www.aimspress.com/article/10.3934/environsci.2020029?viewType=HTML |
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| author | Alma Sobrino-Figueroa Sergio H. Álvarez Hernandez Carlos Álvarez Silva C |
| author_facet | Alma Sobrino-Figueroa Sergio H. Álvarez Hernandez Carlos Álvarez Silva C |
| author_sort | Alma Sobrino-Figueroa |
| collection | DOAJ |
| description | The toxic effect of cadmium, chromium, copper, mercury, manganese, nickel and lead on adult <i>Acanthocyclops americanus</i>copepods was evaluated to determine the sensitivity of this species to these metals. Toxicity tests were carried out to determine the LC<sub>50</sub>, after which bioassays were carried out with environmentally relevant sublethal concentrations in order to measure oxidative damage to cell membranes as well as neurotoxic effects. Cadmium was the most toxic metal and manganese was the least harmful. Copper had the greatest oxidative effect (lipid peroxidation) and nickel had the least effect. A 3% to 79% drop was observed in acetylcholinesterase (AchE) activity, with copper causing the greatest inhibitory effect. <i>A. americanus</i> sensitivity to cadmium, manganese and lead was similar to that recorded for <i>Daphnia magna</i> neonates, but the copepods were less sensitive to chromium, copper, mercury and nickel. The response of <i>A. americanus</i> to exposure to metals makes it possible to propose it as a test organism to evaluate the presence and effect of these elements, particularly cadmium, manganese and lead, in toxicity studies, and possibly for monitoring purposes. |
| first_indexed | 2024-12-23T13:49:13Z |
| format | Article |
| id | doaj.art-c44d2e75b18648d188039f813207e912 |
| institution | Directory Open Access Journal |
| issn | 2372-0352 |
| language | English |
| last_indexed | 2024-12-23T13:49:13Z |
| publishDate | 2020-05-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Environmental Science |
| spelling | doaj.art-c44d2e75b18648d188039f813207e9122022-12-21T17:44:38ZengAIMS PressAIMS Environmental Science2372-03522020-05-017644946310.3934/environsci.2020029Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and PbAlma Sobrino-Figueroa0Sergio H. Álvarez Hernandez1Carlos Álvarez Silva C21. Alejandro Villalobos Laboratory, Department of Hydrobiology, Metropolitan Autonomous University. Mexico City, Mexico2. Applied Phycology Laboratory, Department of Hydrobiology, Metropolitan Autonomous University. Mexico City, Mexico1. Alejandro Villalobos Laboratory, Department of Hydrobiology, Metropolitan Autonomous University. Mexico City, MexicoThe toxic effect of cadmium, chromium, copper, mercury, manganese, nickel and lead on adult <i>Acanthocyclops americanus</i>copepods was evaluated to determine the sensitivity of this species to these metals. Toxicity tests were carried out to determine the LC<sub>50</sub>, after which bioassays were carried out with environmentally relevant sublethal concentrations in order to measure oxidative damage to cell membranes as well as neurotoxic effects. Cadmium was the most toxic metal and manganese was the least harmful. Copper had the greatest oxidative effect (lipid peroxidation) and nickel had the least effect. A 3% to 79% drop was observed in acetylcholinesterase (AchE) activity, with copper causing the greatest inhibitory effect. <i>A. americanus</i> sensitivity to cadmium, manganese and lead was similar to that recorded for <i>Daphnia magna</i> neonates, but the copepods were less sensitive to chromium, copper, mercury and nickel. The response of <i>A. americanus</i> to exposure to metals makes it possible to propose it as a test organism to evaluate the presence and effect of these elements, particularly cadmium, manganese and lead, in toxicity studies, and possibly for monitoring purposes.http://www.aimspress.com/article/10.3934/environsci.2020029?viewType=HTMLacanthocyclops americanusmetal toxicitylipoperoxidationneurotoxic effectsfreshwater copepods |
| spellingShingle | Alma Sobrino-Figueroa Sergio H. Álvarez Hernandez Carlos Álvarez Silva C Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb AIMS Environmental Science acanthocyclops americanus metal toxicity lipoperoxidation neurotoxic effects freshwater copepods |
| title | Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb |
| title_full | Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb |
| title_fullStr | Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb |
| title_full_unstemmed | Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb |
| title_short | Evaluation of the freshwater copepod <i>Acanthocyclops americanus</i> (Marsh, 1983) (Cyclopidae) response to Cd, Cr, Cu, Hg, Mn, Ni and Pb |
| title_sort | evaluation of the freshwater copepod i acanthocyclops americanus i marsh 1983 cyclopidae response to cd cr cu hg mn ni and pb |
| topic | acanthocyclops americanus metal toxicity lipoperoxidation neurotoxic effects freshwater copepods |
| url | http://www.aimspress.com/article/10.3934/environsci.2020029?viewType=HTML |
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