Title |
Acute toxicity test of copper pyrithione on Javanese medaka and the behavioural stress symptoms
|
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Published in |
Marine Pollution Bulletin, December 2017
|
DOI | 10.1016/j.marpolbul.2017.11.046 |
Pubmed ID | |
Authors |
Ferdaus Mohamat-Yusuff, Ghafar Sarah-Nabila, Syaizwan Zahmir Zulkifli, Mohammad Noor Amal Azmai, Wan Norhamidah Wan Ibrahim, Shahrizad Yusof, Ahmad Ismail |
Abstract |
This study was conducted to investigate the median lethal concentration (LC50) of copper pyrithione (CuPT) at 96-hr exposure on adult Javanese medaka (Oryzias javanicus) in revealing toxicological effects of CuPT contamination in the tropical area. Wild stock fishes were acclimatized for 14-days prior analysis. Triplicate of test tanks for seven test concentrations were placed with ten fishes each, this includes two control tanks. The behaviour of the tested fishes was manually observed through a camera. The LC50 of CuPT at 96-h was found to be 16.58mg/L. Tested fishes swam slowly in vertical movement and swam fast towards food during feeding time as the sign of stress behaviour. Meanwhile, fishes in the two control groups swam actively in a horizontal manner and no excitement during feeding time. No mortality in control groups. Results indicate CuPT to be toxic to Javanese medaka at low concentration and caused behavioural stress. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 2 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 40 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Ph. D. Student | 4 | 10% |
Student > Master | 4 | 10% |
Student > Bachelor | 4 | 10% |
Other | 3 | 8% |
Student > Doctoral Student | 3 | 8% |
Other | 7 | 18% |
Unknown | 15 | 38% |
Readers by discipline | Count | As % |
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Agricultural and Biological Sciences | 9 | 23% |
Biochemistry, Genetics and Molecular Biology | 3 | 8% |
Environmental Science | 3 | 8% |
Unspecified | 2 | 5% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 3% |
Other | 5 | 13% |
Unknown | 17 | 43% |