Fouling assemblage colonizing fish-farms is considered mostly to produce negative impacts causing financial loss. By contrast, large evidences emerged on the bioremediation role by biofouling associated to aquaculture facilities, even if the fouling assemblages thriving in the water column was poorly investigated. The aim of the present work was to investigate the macrofouling assemblages over one year of immersion, in order to single out the fouling species, which play the most remarkable role for the bioremediation of the marine areas affected by aquaculture activities. With this in mind, we studied the fouling community dynamics in two Mediterranean maricultural facilities, respectively in the Mar Grande of Taranto (Ionian Sea) and in the Gulf of Gaeta (Tyrrhenian Sea), using the same experimental design and time frame. Two experiments were carried out using artificial panels anchored to two finfish cages. The one-year old fouling communities in the two sites were compared at four seasons of immersion, four submersion durations and three depths, both communities from structural and functional points of view. Notwithstanding the quite similar species composition of fouling of the two sites, the biofouling showed the highest biodiversity in the Mar Grande of Taranto. In the Gulf of Gaeta mussels, Mytilus galloprovincialis, dominated at all the times and depths, whilst in the Mar Grande of Taranto they were especially abundant at the surface with the deepest panels being largely colonized by polychaete sabellids. The co-occurrence of the filter-feeders Mytilus-sabellids recorded in the Gulf of Taranto also highlighted the highest filtration capability. Our results suggest two different fouling assemblages as candidates for bioremediation in integrated multitrophic aquaculture facilities: both a monospecific system dominated by mussels and a multi-specific system with sabellids and mussels as most abundant filter-feeders.

人们普遍认为，在鱼场定殖的结垢组件会产生负面影响，从而造成经济损失。相比之下，即使对水柱中形成的污垢组合物进行了不充分的研究，也有大量证据表明与水产养殖设施有关的生物结垢在生物修复中的作用。本工作的目的是研究浸泡一年后的大型污垢组合，以便找出污垢种类，这些种类对于受水产养殖活动影响的海洋地区的生物修复作用最为显着。考虑到这一点，我们使用相同的实验设计和时间框架研究了两个地中海海水养殖设施（分别在塔兰托的马尔格兰德（爱奥尼亚海）和加埃塔湾（第勒尼安海））的结垢动态。使用锚定在两个有鳍鱼笼中的人造板进行了两个实验。从结构和功能的角度，比较了两个地点的一岁的污垢群落在四个浸没季节，四个浸没持续时间和三个深度的情况。尽管两个地点的结垢物种组成非常相似，但生物结垢在塔兰托的马尔格兰德（Mar Grande）的马格兰德（Mar Grande）上显示出最高的生物多样性。在加埃塔贻贝湾，在塔兰托的马尔格兰德（Mar Grande）上，生物污染显示出最高的生物多样性。在加埃塔贻贝湾，在塔兰托的马尔格兰德（Mar Grande）上，生物污染显示出最高的生物多样性。在加埃塔贻贝湾，在所有时间和深度都占主导地位的Mytilus galloprovincialis，而在Taranto的Mar Grande中，它们在地表特别丰富，最深的板块主要被多毛sa小卵虫定殖。塔兰托湾记录到的滤食者Mytilus -sabellids的同时出现也突出了最高的过滤能力。我们的结果表明，有两种不同的污垢组合物可以作为综合性多营养水产养殖设施中生物修复的候选者：以贻贝为主的单特异性系统和以软体动物和贻贝为最丰富的滤食器的多特异性系统。