Tideflat compaction, Damon Pt, Grays Harbor, Washington, USA

What happens after a MarshMaster MM2LX is driven around an intertidal flat? This "compaction" was tested as a possible mechanical control technique for burrowing shrimp (Neotrypaea californiensis), which are a pest to shellfish aquaculture on tidelands. The project evaluated treatment efficacy and non-target effects on infauna, birds, eelgrass, and oysters. Over 2022-2023, we sampled large (~2.5 ha) areas at Damon Point (Grays Harbor, Washington, USA) before and after compaction on August 12-13 2022, which were re-compacted in May 2023. We tracked two compacted (beds 9, 11) and three interspersed reference beds (beds 8, 10, 12).

MarshMaster MM2LX型设备（MarshMaster MM2LX）在潮间带滩涂行驶碾压后会产生何种效应？本研究将该‘压实作业’作为一种潜在机械防控手段，用于防治潮间带贝类养殖的有害穴居虾类——加州美人虾（Neotrypaea californiensis）。本项目评估了该处理手段的防控效能，及其对底内生物（infauna）、鸟类、鳗草（eelgrass）及牡蛎的非靶标效应。2022至2023年间，我们在美国华盛顿州格雷斯港达蒙点（Damon Point）对两处面积约2.5公顷的区域开展采样：分别于2022年8月12-13日压实作业前后进行采样，并于2023年5月对该区域再次实施压实作业。本研究跟踪监测了两处压实样区（样区9、11）以及三处穿插分布的对照样区（样区8、10、12）。