Abstract A bibliographic survey of macro-zoobenthic species colonizing natural and artificial subtidal formations scattered off the Venetian coasts (North Adriatic Sea, Italy) was realized to update and organize the hard to find and fragmentary information on species lists and functional groups, with the aim to contribute to the ecological analysis of the hard substrate habitat. The results of the survey carried out at 39 sites revealed high species richness especially in the broader rocky outcrops, and a total number of species per site ranging from 13 to 142. As a whole, 399 species were recorded, mainly Mollusca, Crustacea, Annelida and Porifera. Among the recorded species, 36 were commercially valuable and 9 were included in protection lists. From a functional point of view, the category “suspension feeders” was the most numerous group. Low species evenness among the various taxa was generally observed, only few sites, specifically those more distant from the coast and/or included in protected areas, showing well-structured macro-zoobenthic communities. The analysis of taxonomic distinctness highlighted altered taxonomic structure at most sites, mainly due to changes in Mollusca assemblages, suggesting that anthropogenic stressors are likely affecting the surveyed hard substrates.

中文翻译：

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亚得里亚海北部硬质基质的大型底栖动物生物多样性：来自书目调查的生态见解

摘要 对散布在威尼斯海岸（意大利北亚得里亚海）的自然和人工潮下带地层中栖息的大型底栖动物物种进行了书目调查，以更新和组织有关物种列表和功能组的难以找到的零散信息，目的是为硬质基质栖息地的生态分析做出贡献。在39个地点进行的调查结果显示物种丰富度很高，尤其是在更广阔的岩石露头，每个地点的物种总数从13到142不等。 总共记录了399种，主要是软体动物、甲壳动物、环节动物和 Porifera。在记录的物种中，有36种具有商业价值，9种被列入保护名录。从功能的角度来看，“悬挂式喂料机”类别是数量最多的组。通常观察到各种分类群之间的物种均匀度低，只有少数几个地点，特别是那些离海岸更远和/或包含在保护区内的地点，显示出结构良好的大型底栖动物群落。对分类差异性的分析强调了大多数地点的分类结构发生了变化，这主要是由于软体动物组合的变化，这表明人为压力源可能会影响所调查的硬质基质。