Widespread interest in the development of environmentally safe management actions has prompted research into the use of sensory cues to manipulate the movements of invasive species. The push–pull approach, for which attractive and repellent semiochemicals operate synergistically to guide individuals toward traps, has proven successful in insect pest management applications. We examined the effectiveness of a natural repellent (an alarm cue) and a natural attractant (a partial sex pheromone) in push-only (repel), pull-only (attract), and push–pull configurations, to guide invasive sea lamprey (Petromyzon marinus) toward and into a target trap during spawning migration into rivers. Using PIT telemetry to monitor sea lamprey movement within the river, we found that the alarm cue was capable of strongly altering sea lamprey distribution, “pushing” them toward target areas and generating rates of encounter with trap entrances sufficient to achieve trapping-for-control targets. Encounter rate with trap entrances was not improved, but performed more consistently, with the addition of the attractant in the push–pull configuration. There was evidence this could stem from a transition in internal state of motivation, from migration to reproduction. Use of the attractant alone was ineffective. No odor combination improved trap captures. We conclude that push–pull strategies will prove effective in guiding sea lamprey movements and recommend two improvements for subsequent testing in management scenarios: (1) use of a superior attractant (e.g. a sea lamprey migratory cue derived from conspecific larvae), and (2) its subsequent application to a capture methodology based on the entrainment of individuals near trap entrances.

对开发环境安全管理措施的广泛兴趣促使人们对使用感觉线索操纵入侵物种的运动进行研究。推挽式方法已被证明在昆虫害虫管理应用中是成功的，推挽方法使诱人的驱虫剂和化学信息素协同作用，以指导个体进入诱捕器。我们研究了在仅推（排斥），仅拉（吸引）和推拉配置中使用天然驱避剂（警报提示）和天然引诱剂（部分性信息素）的有效性，以指导侵入性海鳗（滨my）在产卵过程中向目标陷阱的方向移动并进入目标陷阱。使用PIT遥测技术监测河流中的海七lamp树运动，我们发现警报提示能够强烈改变海七rey树的分布，将其“推”到目标区域，并产生与陷阱入口相遇的速率，足以实现控制陷阱目标。陷阱入口处的碰碰率并没有得到改善，但是在推挽式配置中添加了引诱剂后，其表现更加一致。有证据表明，这可能是由于内在动力状态的迁移，从迁移到生殖。单独使用引诱剂是无效的。无异味组合改善了陷阱捕获。