a Instituto de Investigaciones Marinas, IIM-CSIC , Vigo , Pontevedra , Spain.
b Marine Affairs Program , Dalhousie University , Halifax , Nova Scotia , Canada.
Biofouling. 2018 Nov;34(10):1138-1149. doi: 10.1080/08927014.2018.1547818. Epub 2019 Jan 30.
Marine mussel aggregations act as a substratum and refuge for many fouling species. Mussel cultivation in Galicia, Spain, is carried out on hanging ropes in subtidal systems. The fauna associated with this cultivation includes a large number of invertebrates that compete for space or food with the mussels, or use their clusters as a refuge from predators or water turbulence. Outbreaks of the epibiont anemone Actinothoe sphyrodeta have been reported in cultivated Galician mussels since 2013, but their impact has not been investigated rigorously. Here, the temporal and spatial variability of Actinothoe sphyrodeta on mussel shells throughout one year is presented. Sampling of mussel size, weight and byssus attachment strength allowed mussel tenacity (attachment strength relative to size) to be calculated. A higher presence of Actinothoe sphyrodeta correlated with lower mussel tenacity and greater biomass losses, suggesting that this species could be an economically important biofouling component.
海洋贻贝聚集区是许多污损生物的基质和避难所。西班牙加利西亚的贻贝养殖是在亚潮带系统中的悬挂绳索上进行的。与这种养殖相关的动物群包括大量的无脊椎动物，它们与贻贝争夺空间或食物，或者利用它们的集群作为躲避捕食者或水动力的避难所。自 2013 年以来，报道称在加利西亚养殖贻贝中出现了附着生物海葵 Actinothoe sphyrodeta 的爆发，但它们的影响尚未得到严格调查。本文介绍了一年中贻贝壳上 Actinothoe sphyrodeta 的时间和空间变异性。贻贝大小、重量和足丝附着强度的采样允许计算贻贝的韧性（相对于大小的附着强度）。Actinothoe sphyrodeta 的存在与贻贝韧性的降低和更大的生物量损失相关，表明该物种可能是一个具有重要经济意义的生物污损成分。
