Evaluation of Glyphosate Toxicity on Arabian Killifish, Aphanius dispar Collected from Southwestern Saudi Arabia

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Ibrahim A. Messaad
Ibrahim A. Messaad
2
Khaled A. Al Zailaie
Khaled A. Al Zailaie
1 King Khalid University

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GJSFR Volume 17 Issue C3

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Glyphosate (Tiller 480 SL), which is used extensively to control and inhibit weeds in terrestrial and aquatic ecosystems, has been blamed of harming non-targeted species like fish. This current study evaluated the acute and chronic impacts of glyphosate on the Arabian killifish (Aphanius dispar) collected from Southwestern Saudi Arabia at different levels of biological organization including behavioral and histopathological responses. Glyphosate toxicity (96 h LC50) to Aphanius dispar was determined at 115.25 mg/l after exposure to 60, 90, 120, 150, 180, 210, 240 mg glyphosate/l. Fish during the 96 h displayed abnormal behavioral changes: erratic movements, hyperactivity, rapid opercula and mouth movements, surfacing, hypoactivity, exhaustion and mortality. While, exposure of fish to 1/4th of the 96-h LC50 for two weeks, the gills and liver organs displayed histopathological alterations.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

Ibrahim A. Messaad. 2017. \u201cEvaluation of Glyphosate Toxicity on Arabian Killifish, Aphanius dispar Collected from Southwestern Saudi Arabia\u201d. Global Journal of Science Frontier Research - C: Biological Science GJSFR-C Volume 17 (GJSFR Volume 17 Issue C3): .

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GJSFR Volume 17 Issue C3
Pg. 43- 50
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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GJSFR-C Classification: FOR Code: 069999
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v1.2

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September 29, 2017

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English

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Glyphosate (Tiller 480 SL), which is used extensively to control and inhibit weeds in terrestrial and aquatic ecosystems, has been blamed of harming non-targeted species like fish. This current study evaluated the acute and chronic impacts of glyphosate on the Arabian killifish (Aphanius dispar) collected from Southwestern Saudi Arabia at different levels of biological organization including behavioral and histopathological responses. Glyphosate toxicity (96 h LC50) to Aphanius dispar was determined at 115.25 mg/l after exposure to 60, 90, 120, 150, 180, 210, 240 mg glyphosate/l. Fish during the 96 h displayed abnormal behavioral changes: erratic movements, hyperactivity, rapid opercula and mouth movements, surfacing, hypoactivity, exhaustion and mortality. While, exposure of fish to 1/4th of the 96-h LC50 for two weeks, the gills and liver organs displayed histopathological alterations.

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Evaluation of Glyphosate Toxicity on Arabian Killifish, Aphanius dispar Collected from Southwestern Saudi Arabia

Ibrahim A. Messaad
Ibrahim A. Messaad King Khalid University
Khaled A. Al Zailaie
Khaled A. Al Zailaie

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