期刊
MARINE AND FRESHWATER RESEARCH
卷 60, 期 4, 页码 328-333出版社
CSIRO PUBLISHING
DOI: 10.1071/MF08139
关键词
surgical implant; tagging; tag rejection; tag shedding
资金
- New Zealand Foundation for Research, Science and Technology [UOWX0505]
- New Zealand Department of Conservation and Environment Waikato
- University of Waikato Animal Ethics Committee
Common carp (Cyprinus carpio) are notoriously difficult to monitor in water temperatures above 20 degrees C using telemetry owing to transmitter expulsion. To reduce transmitter loss, radio transmitters were anchored to the pelvic girdle and a polymer coating was applied to acoustic transmitters to reduce tissue irritation in two tank trials. Ten dummy transmitters were surgically implanted in each of four groups of adult koi carp, a highly coloured strain of C. carpio. Water temperatures ranged between 7 and 24 degrees C. After 365 days, the control and test groups of each trial had similar expulsion rates (P >= 0.30; two-tailed Fisher's exact probability test). Expulsion rates for uncoated acoustic transmitters were 60% (n = 6), coated acoustic transmitters 50% (n = 5), unanchored radio transmitters 60% (n = 6) and anchored radio transmitters 90% (n = 9). Expulsions occurred 15-362 days after implantation as a result of ulcers at or near the surgical wound. Bacterial infection of the wound appears to be the primary mechanism for transmitter expulsion.
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