A study was undertaken to compare the patterns of spatial variability, epiphytic percentage cover, and distribution of epiphytic fauna and flora between the two adjacent seagrasses Cymodocea nodosa and the invasive species Halophila stipulucea. Samples were taken at six stations separated by 600 m and exposed to different current conditions. The stations G2 and G5 were affected by a high current tide, while G4 was directly exposed to the northern marine currents. The station G3 was situated in the middle of a Posidonia oceanica bed and was less exposed to hydrodynamism, whereas the other stations were relatively protected. Results indicate that for both H. stipulacea and C. nodosa, shoot density and epiphytic cover biomass decreased when exposed to high levels of hydrodynamic activity. In terms of epiphytic leaf assemblages, our results showed significant differences for the two host plants in their mean cover and for the six stations at the largest and smallest spatial scale. Our observations highlight the dominance of Rhodophyta and the low number of epiphytic species and the epiphytic cover on H. stipulacea compared to C. nodosa. In addition, results indicate the absence of two taxa Hydrozoans and Annelida in the epiphytic assemblage of H. stipulacea leaves.

进行了一项研究，以比较两个相邻海草Cymodocea nodosa和入侵物种Halophila stipulucea之间的空间变异，附生百分比覆盖以及附生动植物分布的模式。在相距600 m的六个站采集样品，并将其置于不同的电流条件下。站G2和G5受高潮影响，而G4直接暴露于北部海流。G3站位于波西多尼亚海洋床的中间，较少受到水动力影响，而其他站则受到相对保护。结果表明，对于H. stipulacea和C. nodosa暴露于高水平的水动力活动时，枝条密度和附生生物量降低。就附生叶组合而言，我们的结果表明两种寄主植物的平均覆盖率以及在最大和最小空间尺度上的六个站均存在显着差异。我们的观察突出了与结节念珠菌相比，红景天占优势，附睾物种的数量和附睾覆盖率较低。此外，研究结果表明在附生组合缺席2个类群水螅和环节动物H. stipulacea叶。