Sezione Oceanografia, OGS (Istituto Nazionale di Oceanografia e Geofisica Sperimentale), Via. A. Piccard 54, I-34151 Trieste, Italy; Department of Life Sciences, Università di Trieste, v. Valerio 28/A, I-34127 Trieste, Italy.
Sezione Oceanografia, OGS (Istituto Nazionale di Oceanografia e Geofisica Sperimentale), Via. A. Piccard 54, I-34151 Trieste, Italy.
Mar Pollut Bull. 2014 Feb 15;79(1-2):379-88. doi: 10.1016/j.marpolbul.2013.11.002. Epub 2013 Nov 25.
The effects of long-line mussel farming on microphytobenthos were investigated in a coastal area of the Gulf of Trieste. Sediment grain-size, organic matter content, microalgal abundance and community structure were analysed in September 2008 and March 2009. Four areas were sampled: a twenty-year farm, a four-year farm, a disused farm and a reference site. Principal component analysis (PCA) highlighted a decreasing gradient of organic matter content from the twenty-year farm to the control. Mussel farming seemed to influence microphytobenthic abundance with higher densities in the oldest farm. Three genera were dominant; Navicula and Gyrosigma seemed to be stimulated by the organic load under the active farms while we infer that Nitzschia proliferation was limited by shade caused by mussel ropes. In the PCA, samplings of the disused farm were placed in-between the still active farms and the control, indicating the partial recovery occurred in this site.
在的里雅斯特湾的一个沿海地区，研究了长线贻贝养殖对底栖微型藻类的影响。2008 年 9 月和 2009 年 3 月分析了沉积物粒径、有机质含量、微藻丰度和群落结构。在四个区域进行了采样：一个有 20 年历史的养殖场、一个有 4 年历史的养殖场、一个废弃的养殖场和一个对照点。主成分分析（PCA）突出了从 20 年养殖场到对照点有机质含量逐渐降低的梯度。贻贝养殖似乎影响了底栖微型藻类的丰度，在最古老的养殖场中密度更高。三个属占优势；在活跃养殖场下，Navicula 和 Gyrosigma 似乎受到有机负荷的刺激，而我们推断，Nitzschia 的增殖受到贻贝绳索造成的阴影的限制。在 PCA 中，废弃养殖场的采样介于仍在活跃的养殖场和对照点之间，表明该地点出现了部分恢复。
