citric acid injections: an accessible and efficient method for controlling outbreaks of the crown-of-thorns starfish acanthaster cf. solaris
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ID: 186153
2016
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Abstract
Outbreaks of the crown-of-thorns starfish (Acanthaster cf. solaris, COTS) are one of the primary causes of coral decline in the Indo-Pacific region. Effective methods to control COTS outbreaks may therefore be one of the most direct and immediate ways to reduce coral loss. However, the cost and logistical challenges associated with current control methods have undermined the effectiveness of many control efforts. In this study, we tested the feasibility of using powdered citric acid, which is widely available and low-cost, as an injection chemical for COTS control. We tested what combination of concentration, number of injections, volume, and water type were most efficient at killing COTS. All COTS injected in two or four sites died, irrespectively of the concentration of citric acid used, while single injections failed at reaching 100% mortality. The fastest combination was the injection of 150 g·L−1 citric acid solution in four injection sites (5 mL per site), which killed the starfish in 26.4 ± 4 h. These results suggest that injections of powdered citric acid are an effective, economical, and widely available alternative to current COTS control methods.
| Reference Key |
buck2016diversitycitric
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|---|---|
| Authors | ;Alexander C. E. Buck;Naomi M. Gardiner;Lisa Boström-Einarsson |
| Journal | dementia and geriatric cognitive disorders extra |
| Year | 2016 |
| DOI |
10.3390/d8040028
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| URL | |
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