Detrimental impacts of climate change may be exacerbated by density dependent population regulation in blue mussels

Between 1997 and 2013 we monitored blue mussel population densities at six stations within the Tvärminne archipelago, which were on average 4.3 km (± 0.82 SD) apart from each other and ranged from sheltered (zone 1 in column C), intermediate (zone 2 in column C), and exposed to wind and wave action of the open sea (zone 2 in column C) and termed ‘zones’ with increasing distance from the mainland. Each year during May and June, blue mussels were sampled using SCUBA using a quadrat frame (20 x 20 cm). For each quadrat sample the divers scraped the entire frame content into an attached fabric net-bag (0.1 mm mesh). Triplicate samples, distanced by 10-20 m, were randomly taken from each of four depths (3, 5, 8 and 12 m) at each station (1-6). More details in the Journal of Animal Ecology paper related to these data.

1997年至2013年，我们对特明内群岛（Tvärminne archipelago）内的6个监测站位开展了蓝贻贝种群密度监测。各站位平均间距为4.3 km（标准差±0.82），生境类型涵盖受庇护型（C列第1区）、中等扰动型（C列第2区），以及暴露于外海风浪作用的生境（C列第2区），上述生境依据与大陆的距离递增被划分为不同的生境带。每年5月至6月，研究人员采用水肺潜水（SCUBA）配合20×20 cm样方框开展蓝贻贝采样。针对每个样方样品，潜水员将样方框内的全部附着物刮入附带的网孔孔径为0.1 mm的织物网袋中。每个监测站位（1至6号）的4个采样深度（3、5、8和12 m）处，均随机采集3份间距为10~20 m的平行样品。有关本数据集的更多详细信息，可参阅《动物生态学杂志》（Journal of Animal Ecology）刊载的相关研究论文。