New Zealand Journal of Agricultural Research abstracts

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Monitoring for 1080 residues in waterways after a rabbit-poisoning operation in Central Otago

D. J. HAMILTON

Otago Regional Council
Private Bag
Dunedin, New Zealand

C. T. EASON

Manaaki Whenua - Landcare Research
P. O.Box 31-011
Christchurch, New Zealand

Abstract  A successful rabbit control operation was conducted in July 1992 on Blackstone Hill, Otago, New Zealand. A greater than 90% kill of rabbits was achieved using aerially sown sodium monofluoroacetate (1080) carrot bait. Streams and rivers on Blackstone Hill were monitored for 4 weeks after the operation and only two out of 29 samples contained measurable amounts of 1080 at 0.0003 and 0.0006 mg/l. Measurable amounts of 1080 occurred only within 48 h of the application of toxic bait. All subsequent samples were either free from 1080 or contained concentrations below the limit of detection (0.0003 mg/l). These levels pose no threat to humans, stock, or aquatic life.

Keywords  sodium monofluoroacetate (1080); water quality; Otago; rabbit control

PDF file of entire paper: medium quality (293K); (scanned from paper original: notes about this process)

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