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首页> 外文期刊>Mediterranean Marine Science >Epiphytic Communities On Posidonia Oceanica (L.) Delile Leaves Along The North Tyrrhenian Coasts (N.W. Mediterranean Sea, Italy)
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Epiphytic Communities On Posidonia Oceanica (L.) Delile Leaves Along The North Tyrrhenian Coasts (N.W. Mediterranean Sea, Italy)

机译：波西多尼亚大洋洲（L.）Delile叶片的附生群落沿北第勒尼安海岸（意大利西北地中海）

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The structure of epiphytic communities was studied from February to November 2000 at three different levels (upper limit, lower limit, central zone) in depth (- 5 to – 26 m) in five Posidonia oceanica(L.) Delile 1813 Tuscany coast meadows: Rosignano, San Vincenzo, Piombino, Punta Ala, Portoferraio (Isle of Elba). The study was focused on leaf epiphytes and epifauna. Three shoots in three plots were collected randomly in each area (nine shoots per area) in each site of each meadow. A quantitative description of the epiphytes and epifauna was carried out, regarding the three groups: Algae, Hydroids and Bryozoans, both on the outer and the inner surfaces of the leaf blade. The dynamics of communities of the leaf-stratum along a bathymetric gradient showed a seasonal variation characterized by the highest richness of epiphytes mainly in the upper limit, especially in early spring. Significant differences were demonstrated for the epiphytic communities of the external leaf-stratum both on the upper and the central limit of the studied meadows.
机译：2000年2月至2000年11月，在五个Posidonia oceanica（L。）Delile 1813托斯卡纳海岸草甸的深度（-5至– 26 m）的三个不同级别（上限，下限，中心区域）研究了附生群落的结构：罗西尼亚诺，圣温琴佐，皮翁比诺，蓬塔阿拉，费拉约港（厄尔巴岛）。该研究集中于叶片附生植物和附生动物。在每个草地的每个位置的每个区域中随机收集三个地块中的三个芽（每个区域九个芽）。对附生植物和附生动物进行了定量描述，涉及到叶片的内外表面上的三类藻类，类水生动物和苔藓动物。沿等深线梯度的叶层群落动态显示季节性变化，其特征是附生植物的最高富集主要在上限，特别是在早春。在研究的草地的上限和中部，外部叶层的附生群落均表现出显着差异。

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