Effects of marine heatwave intensity on community filtration rates of Wadden Sea intertidal bivalves: a mesocosm experiment conducted on the island of Sylt, Germany, in summer 2022

To investigate the potential impact of marine heatwaves on the intertidal fauna of the German Wadden Sea, a mesocosm experiment was conducted on the island of Sylt, Germany, from June to August 2022. Organisms of the two common bivalve species Cerastoderma edule and Macoma balthica were collected from the upper intertidal of the local Wadden Sea in May 2022. Organisms were then placed into open boxes filled half with sieved sediment (1000 µm) from the sampling area, as single-species communities mimicking in-situ observed densities of 119 individuals m-2 (C. edule) and 357 m-2 (M. balthica) and with initial community wet weights corresponding to approximately 35.7 g m-2 (both species) to ensure comparability. The communities were introduced into outdoor land-based mesocosm tanks equipped with tidal simulation, seawater flow through and temperature control on June 1st, 2022. […]

为探究海洋热浪对德国北海湿地潮间带生物群落潜在影响，于2022年6月至8月在德国叙尔特岛进行了一项中宇宙实验。2022年5月，从当地北海湿地潮间带采集了两种常见双壳类动物物种——扇贝（Cerastoderma edule）和马科贝（Macoma balthica）的个体。随后，将这些生物置于开放式箱子中，箱子中填充了来自采样区域的过筛沉积物（1000 µm），半箱量为119个体每平方米（C. edule）和357个体每平方米（M. balthica），以模拟现场观测到的密度，并使初始群落湿重与约35.7克每平方米相对应，以确保可比性。这些群落于2022年6月1日被引入户外陆地中宇宙水池中，水池配备了潮汐模拟、海水流动和温度控制系统。