Long-term retention of acoustic telemetry transmitters in temperate predators revealed by predation tags implanted in wild prey fish
Journal of Fish Biology
acoustic telemetry, coregonid, gut evacuation, Laurentian Great Lakes, predation, tag retention
Bloater Coregonus hoyi (n = 48) were implanted with V9DT-2x predation transmitters and monitored on 105 acoustic receivers in eastern Lake Ontario for >6 months. Twenty-three predation events were observed, with predator retention of tags ranging from ≤1 to ≥194 days and 30% of retentions lasting >150 days. Long tag retention times raise concerns for acoustic telemetry analysis and the health of piscivorous predators retaining tags.
Klinard, Natalie V.; Matley, Jordan K.; Fisk, Aaron T.; and Johnson, Timothy B.. (2019). Long-term retention of acoustic telemetry transmitters in temperate predators revealed by predation tags implanted in wild prey fish. Journal of Fish Biology, 95 (6), 1512-1516.