Data from scallop survival assays conducted as part of a larger concurrent study of fragmentation effects on estuarine faunal communities with Artificial Seagrass Units (ASU) in Back Sound, NC from July to September 2018

This dataset contains metadata and data from scallop survival assays conducted in 2018 (assays across landscape area x fragmentation per se treatments) as part of the following study published in Yarnall et al. (2024): To parse the influences of fragmentation components on scallop survival, we generated nine unique landscapes composed of artificial seagrass units (ASUs), were constructed to mimic Zostera marina. These landscapes were part of a larger-scale concurrent experiment, during which we examined seagrass fragmentation effects on estuarine faunal communities (Yarnall et al. In Press). Landscapes were designed to be treatments along orthogonal axes of seagrass percent cover of the landscape footprint (10%, 35%, 60%) and fragmentation per se, indexed by percolation probability (0.1, 0.35, 0.59). Relative scallop survival was measured by deploying tethered juvenile bay scallops in two density treatments. Five 24-h survival assay trials were conducted from July to September 2018. During each survival assay, observers snorkel surveyed tethers and recorded the number of live and dead scallops per treatment. Data were collected by Drs. F. Joel Fodrie and Amy H. Yarnall for the Estuarine Ecology Laboratory of the University of North Carolina at Chapel Hill’s Institute of Marine Sciences.本数据集包含2018年开展的扇贝存活实验的元数据与原始实验数据，该实验设置了景观面积与固有破碎化两个维度的处理组，属于Yarnall等人（2024）发表的一项研究的组成部分。 为解析破碎化组分对扇贝存活的影响，我们以人工海草单元（artificial seagrass units, ASUs）模拟大叶藻（Zostera marina），构建了9种独特的实验景观。这些景观是一项更大规模同步实验的组成部分，该实验旨在探究海草破碎化对河口动物群落的影响（Yarnall等，已接收待刊）。实验景观的处理组沿两个正交变量轴设置：一是实验样地覆盖范围内的海草盖度（10%、35%、60%），二是以渗流概率（percolation probability, 0.1、0.35、0.59）表征的固有破碎化程度。 相对扇贝存活率通过设置两种密度处理组的栓系幼年海湾扇贝实验进行测定。2018年7月至9月间，我们共开展了5次24小时存活实验。每次实验中，研究人员通过浮潜调查栓系装置，记录各处理组内存活与死亡的扇贝个体数量。 本数据集由北卡罗来纳大学教堂山分校海洋科学研究所河口生态学实验室的F. Joel Fodrie博士与Amy H. Yarnall博士收集完成。