Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot
The tox icity o f two pesticides, ethil - parathion (DNTP) and DDVP, organophosphorous insecticides extensively used in commercial formulations, was evaluated. Standard short-term exposure (108 h) static toxicity bioassays were performed with Southern king crab larvae (1 st. zoeae) obtained from ovi...
Published in: | Ecosur |
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Language: | Spanish |
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Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste)
2023
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Online Access: | https://revistas.unne.edu.ar/index.php/eco/article/view/6987 https://doi.org/10.30972/eco.9186987 |
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ftunnordesteojs:oai:ojs.revistas.unne.edu.ar:article/6987 2024-05-19T07:31:38+00:00 Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot Efectos del etilparathion y DDYP sobre larvas de centolla Lithodes antarticus Jacquinot Lombardo, Rubén J. Ferrari, Lucrecia Vinuesa, Julio H. 2023-11-14 application/pdf https://revistas.unne.edu.ar/index.php/eco/article/view/6987 https://doi.org/10.30972/eco.9186987 spa spa Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) https://revistas.unne.edu.ar/index.php/eco/article/view/6987/6875 https://revistas.unne.edu.ar/index.php/eco/article/view/6987 doi:10.30972/eco.9186987 Ecosur; 1982: vol. 9, no. 18; 141-151 0325-108X info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo revisado por pares 2023 ftunnordesteojs https://doi.org/10.30972/eco.9186987 2024-04-26T01:07:23Z The tox icity o f two pesticides, ethil - parathion (DNTP) and DDVP, organophosphorous insecticides extensively used in commercial formulations, was evaluated. Standard short-term exposure (108 h) static toxicity bioassays were performed with Southern king crab larvae (1 st. zoeae) obtained from ovigerous females of Beagle Channel (Ushuaia). Each 12 h lethal concentrations for the 50% of the individuáis (LC 50) were estimated by Finney’s formal probit analysis. Three speed computing methods were used furthermore, obtaining not unbiased estimates in case of asymmetrical tolerance distribution. The data show that the two pesticides are acutely toxic at low concentrations. The 96 h of exposure LC50 are 33 /ag/1 for DNTP and 3.6 mg/¡ for DDVP. The DNTP toxicity curve indicates that lethal treshold concentration is smaller than 33 p.g/1. Apparently treshold for acute lethality were not found for DDVP.Both drugs induced suble'thal effects. There are: swimming and appendix inactivity, expansión of the posterior carapace area and rigid abdomen or eontinuously twisted. The tox icity o f two pesticides, ethil-parathion (DNTP) and DDVP, organophosphorous insecticides extensively used in commercial formulations, was evaluated. Standard short-term exposure (108 h) static toxicity bioassays were performed with Southern king crab larvae (1 st. zoeae) obtained from ovigerous females of Beagle Channel (Ushuaia). Each 12 h lethal concentrations for the 50% of the individuáis (LC 50) were estimated by Finney’s formal probit analysis. Three speed computing methods were used furthermore, obtaining not unbiased estimates in case of asymmetrical tolerance distribution. The data show that the two pesticides are acutely toxic at low concentrations. The 96 h of exposure LC50 are 33 /ag/1 for DNTP and 3.6 mg/¡ for DDVP. The DNTP toxicity curve indicates that lethal treshold concentration is smaller than 33 p.g/1. Apparently treshold for acute lethality were not found for DDVP. Both drugs induced suble'thal effects. There are: swimming ... Article in Journal/Newspaper Antarc* antarcticus antartic* Revistas UNNE (Universidad Nacional del Nordeste, Argentina) Ecosur 141 151 |
institution |
Open Polar |
collection |
Revistas UNNE (Universidad Nacional del Nordeste, Argentina) |
op_collection_id |
ftunnordesteojs |
language |
Spanish |
description |
The tox icity o f two pesticides, ethil - parathion (DNTP) and DDVP, organophosphorous insecticides extensively used in commercial formulations, was evaluated. Standard short-term exposure (108 h) static toxicity bioassays were performed with Southern king crab larvae (1 st. zoeae) obtained from ovigerous females of Beagle Channel (Ushuaia). Each 12 h lethal concentrations for the 50% of the individuáis (LC 50) were estimated by Finney’s formal probit analysis. Three speed computing methods were used furthermore, obtaining not unbiased estimates in case of asymmetrical tolerance distribution. The data show that the two pesticides are acutely toxic at low concentrations. The 96 h of exposure LC50 are 33 /ag/1 for DNTP and 3.6 mg/¡ for DDVP. The DNTP toxicity curve indicates that lethal treshold concentration is smaller than 33 p.g/1. Apparently treshold for acute lethality were not found for DDVP.Both drugs induced suble'thal effects. There are: swimming and appendix inactivity, expansión of the posterior carapace area and rigid abdomen or eontinuously twisted. The tox icity o f two pesticides, ethil-parathion (DNTP) and DDVP, organophosphorous insecticides extensively used in commercial formulations, was evaluated. Standard short-term exposure (108 h) static toxicity bioassays were performed with Southern king crab larvae (1 st. zoeae) obtained from ovigerous females of Beagle Channel (Ushuaia). Each 12 h lethal concentrations for the 50% of the individuáis (LC 50) were estimated by Finney’s formal probit analysis. Three speed computing methods were used furthermore, obtaining not unbiased estimates in case of asymmetrical tolerance distribution. The data show that the two pesticides are acutely toxic at low concentrations. The 96 h of exposure LC50 are 33 /ag/1 for DNTP and 3.6 mg/¡ for DDVP. The DNTP toxicity curve indicates that lethal treshold concentration is smaller than 33 p.g/1. Apparently treshold for acute lethality were not found for DDVP. Both drugs induced suble'thal effects. There are: swimming ... |
format |
Article in Journal/Newspaper |
author |
Lombardo, Rubén J. Ferrari, Lucrecia Vinuesa, Julio H. |
spellingShingle |
Lombardo, Rubén J. Ferrari, Lucrecia Vinuesa, Julio H. Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
author_facet |
Lombardo, Rubén J. Ferrari, Lucrecia Vinuesa, Julio H. |
author_sort |
Lombardo, Rubén J. |
title |
Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
title_short |
Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
title_full |
Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
title_fullStr |
Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
title_full_unstemmed |
Effects of ethil-parathion and DDVP on centolla larvae Lithodes antarcticus Jacquinot |
title_sort |
effects of ethil-parathion and ddvp on centolla larvae lithodes antarcticus jacquinot |
publisher |
Centro de Ecología Aplicada del Litoral (Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad Nacional de Nordeste) |
publishDate |
2023 |
url |
https://revistas.unne.edu.ar/index.php/eco/article/view/6987 https://doi.org/10.30972/eco.9186987 |
genre |
Antarc* antarcticus antartic* |
genre_facet |
Antarc* antarcticus antartic* |
op_source |
Ecosur; 1982: vol. 9, no. 18; 141-151 0325-108X |
op_relation |
https://revistas.unne.edu.ar/index.php/eco/article/view/6987/6875 https://revistas.unne.edu.ar/index.php/eco/article/view/6987 doi:10.30972/eco.9186987 |
op_doi |
https://doi.org/10.30972/eco.9186987 |
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Ecosur |
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141 |
op_container_end_page |
151 |
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