Ponti Massimo, Fava Federica, Perlini Rossella Angela, Giovanardi Otello, Abbiati Marco
Dipartimento di Scienze Biologiche, Geologiche ed Ambientali (BiGeA) & Centro Interdipartimentale di Ricerca per le Scienze Ambientali (CIRSA), University of Bologna, UO CoNISMa, Via S. Alberto 163, I-48123 Ravenna, Italy.
Dipartimento di Scienze Biologiche, Geologiche ed Ambientali (BiGeA) & Centro Interdipartimentale di Ricerca per le Scienze Ambientali (CIRSA), University of Bologna, UO CoNISMa, Via S. Alberto 163, I-48123 Ravenna, Italy; Fondazione Flaminia - Per l'Università in Romagna, Via Baccarini 27, I-48121 Ravenna, Italy.
Mar Environ Res. 2015 Mar;104:10-9. doi: 10.1016/j.marenvres.2014.12.004. Epub 2014 Dec 25.
The use of artificial reefs is on the rise worldwide. While their fish aggregating effects are well known, the epibenthic assemblages have been poorly investigated. Two types of artificial reefs (pyramids of concrete slabs and bundles of concrete tubes) have been deployed out of the Po River Delta in 2006 and 2010. The epibenthic assemblages were investigated in 2009 and 2012. Benthic assemblages on both structure typologies were dominated by species tolerating high sedimentation rates. Dissimilarities were found among assemblages with different ages, and, in less extend, between reef typologies. Colonisation by Mytilus galloprovincialis and other major space occupiers did not follow a clear succession pattern and was not affected by reef typology. Species colonisation was likely driven by variability in environmental conditions and recruitment processes rather than by reef typology. This study suggests that environmental features of the deployment sites should be carefully considered in planning and designing artificial reefs, especially in eutrophic and turbid coastal waters, exposed to high river loads.
人工鱼礁的使用在全球范围内呈上升趋势。虽然它们的聚鱼效果广为人知，但对浅海底栖生物群落的研究却很少。2006年和2010年，在波河三角洲外部署了两种类型的人工鱼礁（混凝土板金字塔和混凝土管束）。2009年和2012年对浅海底栖生物群落进行了调查。两种结构类型上的底栖生物群落都以耐高沉积速率的物种为主。在不同年龄的群落之间发现了差异，在较小程度上，在鱼礁类型之间也存在差异。加利福尼亚贻贝和其他主要占据空间的物种的定殖没有遵循明确的演替模式，并且不受鱼礁类型的影响。物种定殖可能是由环境条件和补充过程的变化驱动的，而不是由鱼礁类型驱动的。这项研究表明，在规划和设计人工鱼礁时，应仔细考虑部署地点的环境特征，特别是在富营养化和浑浊的近岸水域，这些水域受到高河流负荷的影响。
