A Comparison of Floy and Soft VIalpha tags on Hatchery Arctic Charr, with Emphasis on Tag Retention, Growth and Survival |
| |
| Authors: | Audun H. Rikardsen Mary Woodgate Daniel A. Thompson |
| |
| Affiliation: | (1) Norwegian Institute for Nature Research, N-9296 Tromso, Norway;(2) Northwest Marine Technology, 2401 Bristol Court SW, Olympia, WA, 98502, U.S.A;(3) Washington Department of Fish and Wildlife, 600 Capital Way North, Olympia, WA, 98501, U.S.A |
| |
| Abstract: | ![]()
The Floy FTF-69 'fingerling' tag and the soft VIalpha tag are designed to be used on small salmonid fishes (> 100 and > 150 mm, respectively). The two tags were compared for 160 days on hatchery-reared Arctic charr, Salvelinus alpinus, (170–209mm). Tag retention and effects on growth rate and survival were analysed. VIalpha-tagged and untagged control fish had similar growth rates and grew significantly faster than Floy-tagged fish during the experiment. Tag retention was significantly higher for Floy tags (94%) than for VIalpha tags (78%). Most VIalpha tag loss (11%) took place within the first 10 days of tagging while there were no Floy tags lost during this period. Survival rates were about equal for all three groups (96–98%), and thus the tags did not seem to affect the survival of charr under hatchery conditions. |
| |
| Keywords: | Salvelinus alpinus Salmonidae tagging tag loss fingerling tag |
| 本文献已被 SpringerLink 等数据库收录！ |
|
