A cost-effective approach to controlling foraging and feeding behaviors of sea urchins is essential for the management of kelp beds. Laboratory experiments were designed to investigate whether alarm cues from crushed conspecific urchins can effectively prevent the foraging and feeding behaviors of the sea urchin Mesocentrotus nudus under the static seawater condition. The present study found that the number of M. nudus that foraged successfully was significantly lower when alarm cues were placed between the kelp and the sea urchins. This result indicates that alarm cues could play an important role in critical kelp-bed areas. It probably prevents sea urchins from foraging by acting as a barrier. Further, we found that alarm cues around the kelp significantly affected foraging behavior of M. nudus, indicating that the alarm cues around the kelp are a potential effective way to prevent sea urchins from foraging for the kelp. In addition, the number of sea urchins that stopped feeding was significantly higher in the group in the presence of alarm cues than that in the control group. This indicates that alarm cues may have an application in stopping sea urchins from feeding. However, there was no significant difference of Aristotle's lantern reflex between the groups with and without alarm cues. These results indicate that alarm cues greatly affect foraging behavior, but not Aristotle's lantern reflex of M. nudus. All together, the present study suggests that alarm cues have an application potential in the management of the kelp beds as green engineering. Future studies are essential to further investigate the chemical basis of the alarm cues of sea urchins for the application in large-scale.

控制海胆觅食和摄食行为的经济有效的方法对于海带床的管理至关重要。实验室实验旨在研究压碎同种海胆发出的警报信号能否有效阻止静态海水条件下海胆Mesocentrotus nudus的觅食和摄食行为。本研究发现M的数量。当警报信号放置在海带和海胆之间时，成功觅食的裸藻数量显着降低。这一结果表明警报提示可以在关键的海带床区域发挥重要作用。它可能通过充当屏障来阻止海胆觅食。此外，我们发现海带周围的警报信号显着影响了M的觅食行为。 nudus ，表明海带周围的警报线索是防止海胆觅食海带的潜在有效方法。此外，在出现警报提示的情况下，该组停止进食的海胆数量明显高于对照组。这表明警报提示可能有助于阻止海胆进食。然而，有和没有警报提示的组之间亚里士多德的灯笼反射没有显着差异。这些结果表明警报信号极大地影响了觅食行为，但对亚里士多德的灯笼反射没有影响。裸露。总而言之，本研究表明警报提示在作为绿色工程的海带床管理中具有应用潜力。 未来的研究对于进一步研究海胆警报信号的化学基础以实现大规模应用至关重要。