Our new study "Enhancing Seagrass Restoration Success: Detecting and Quantifying Mechanisms of Wave-Induced Dislodgement" (https://doi.org/10.1016/j.scitotenv.2024.178055) examines an often overlooked challenge in seagrass restoration: We investigate the impacts of wave action on transplanted seagrass shoots (Zostera marina) in a controlled wave flume environment.
Utilizing 224 harvested Z. marina shoots, our research replicates seagrass restoration under realistic sea state conditions to assess the effects of waves in the early phase (<18 days) after transplantation.
Our findings reveal that dislodgement is primarily caused by long-term cyclic wave loads, rather than singular large waves. We observed that shoots with less than 12 days of rooting are particularly susceptible to dislodgement. Importantly, the study highlights that belowground biomass (root system) and leaf surface significantly influence shoot stability. Additionally, by employing a restoration facilitator, such as a protective willow fence, we increased shoot survival significantly.
Our research provides vital insights and practical guidance for planning seagrass restoration efforts, including the selection of appropriate weather windows, shoot morphometrics and the necessity of restoration facilitators. This work aims to support the successful restoration of seagrass ecosystems, which play a crucial role in biodiversity support, CO2 sequestration, and coastal protection.
Kamperdicks L, Lattuada M, Ó Corcora T, Schlurmann T, and Paul M (2024) Enhancing Seagrass Restoration Success: Detecting and Quantifying Mechanisms of Wave-Induced Dislodgement. STOTEN. https://doi.org/10.1016/j.scitotenv.2024.178055
