Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings
The toxic effects of the herbicide Butachlor were studied using a concentration of 0.4-1.3ppm and 0.1-1ppm on fingerlings of the Persian sturgeon and Stellatus sturgeon respectively in 1999. We carried out six treatments with three replicates and used one control based on the static O.E.C.D. method. Over the experiments, pH ranged between 6.7-8.2, total hardness was measured to be 230 mg/l, water temperature was 20±1 degrees centigrade and dissolved oxygen was above 6 mg/l. We found that the LC50 96h of the Butachlor on fingerlings of the Persian sturgeon and Stellatus sturgeon weighing 1-3 grams was 0.44 and 0.07 mg/l respectively. Also assessed the LC10, LC50, LC90 of the herbicide on the fingerlings of the sturgeons using the Probit Analysis procedure. We determined the maximum allowable concentration of the Butachlor herbicide for the fingerlings of the Persian and Stellatus sturgeons to be 0.044 and 0.007 mg/l. Based on the standards, the herbicide is considered highly toxic for the studied fingerlings.
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Format: | Journal Contribution biblioteca |
Language: | Persian |
Published: |
2005
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Subjects: | Acipenser stellatus, Acipenser persicus, A. stellatus, Herbicide, Fingerlings, Butachlor, Toxic, Sturgeon, pH, Dissolved oxygen, Persian sturgeon, Stellatus sturgeon, |
Online Access: | http://hdl.handle.net/1834/12790 |
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dig-aquadocs-1834-127902021-05-19T06:47:32Z Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings Padjand, Z. Esmaieli, S.A. Piri, M. Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon The toxic effects of the herbicide Butachlor were studied using a concentration of 0.4-1.3ppm and 0.1-1ppm on fingerlings of the Persian sturgeon and Stellatus sturgeon respectively in 1999. We carried out six treatments with three replicates and used one control based on the static O.E.C.D. method. Over the experiments, pH ranged between 6.7-8.2, total hardness was measured to be 230 mg/l, water temperature was 20±1 degrees centigrade and dissolved oxygen was above 6 mg/l. We found that the LC50 96h of the Butachlor on fingerlings of the Persian sturgeon and Stellatus sturgeon weighing 1-3 grams was 0.44 and 0.07 mg/l respectively. Also assessed the LC10, LC50, LC90 of the herbicide on the fingerlings of the sturgeons using the Probit Analysis procedure. We determined the maximum allowable concentration of the Butachlor herbicide for the fingerlings of the Persian and Stellatus sturgeons to be 0.044 and 0.007 mg/l. Based on the standards, the herbicide is considered highly toxic for the studied fingerlings. Published 2018-05-06T14:09:03Z 2018-05-06T14:09:03Z 2005 Journal Contribution Refereed 1026-1354 http://hdl.handle.net/1834/12790 fa http://isfj.areo.ir/ pp.41-50 Iran |
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Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon |
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Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon Padjand, Z. Esmaieli, S.A. Piri, M. Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
description |
The toxic effects of the herbicide Butachlor were studied using a concentration of 0.4-1.3ppm and 0.1-1ppm on fingerlings of the Persian sturgeon and Stellatus sturgeon respectively in 1999. We carried out six treatments with three replicates and used one control based on the static O.E.C.D. method. Over the experiments, pH ranged between 6.7-8.2, total hardness was measured to be 230 mg/l, water temperature was 20±1 degrees centigrade and dissolved oxygen was above 6 mg/l. We found that the LC50 96h of the Butachlor on fingerlings of the Persian sturgeon and Stellatus sturgeon weighing 1-3 grams was 0.44 and 0.07 mg/l respectively. Also assessed the LC10, LC50, LC90 of the herbicide on the fingerlings of the sturgeons using the Probit Analysis procedure. We determined the maximum allowable concentration of the Butachlor herbicide for the fingerlings of the Persian and Stellatus sturgeons to be 0.044 and 0.007 mg/l. Based on the standards, the herbicide is considered highly toxic for the studied fingerlings. |
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Journal Contribution |
topic_facet |
Acipenser stellatus Acipenser persicus A. stellatus Herbicide Fingerlings Butachlor Toxic Sturgeon pH Dissolved oxygen Persian sturgeon Stellatus sturgeon |
author |
Padjand, Z. Esmaieli, S.A. Piri, M. |
author_facet |
Padjand, Z. Esmaieli, S.A. Piri, M. |
author_sort |
Padjand, Z. |
title |
Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
title_short |
Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
title_full |
Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
title_fullStr |
Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
title_full_unstemmed |
Determining the lethal concentration (LC50 96h) of Butachlor herbicide for Acipenser persicus and Acipenser stellatus fingerlings |
title_sort |
determining the lethal concentration (lc50 96h) of butachlor herbicide for acipenser persicus and acipenser stellatus fingerlings |
publishDate |
2005 |
url |
http://hdl.handle.net/1834/12790 |
work_keys_str_mv |
AT padjandz determiningthelethalconcentrationlc5096hofbutachlorherbicideforacipenserpersicusandacipenserstellatusfingerlings AT esmaielisa determiningthelethalconcentrationlc5096hofbutachlorherbicideforacipenserpersicusandacipenserstellatusfingerlings AT pirim determiningthelethalconcentrationlc5096hofbutachlorherbicideforacipenserpersicusandacipenserstellatusfingerlings |
_version_ |
1756076412906766336 |