Université de Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS 6249, France; Institut National des Sciences et Technologies de la Mer (INSTM), Laboratoire Milieu Marin, Centre la Goulette, Tunisia.
Mar Pollut Bull. 2013 Sep 15;74(1):383-95. doi: 10.1016/j.marpolbul.2013.06.021. Epub 2013 Jul 11.
We studied the distribution of planktonic and epiphytic ciliates coupled with environmental factors and microalgae abundance at five stations in Ghar El Melh Lagoon (Tunisia). Planktonic ciliates were monitored for a year and epiphytic ciliates were sampled during summer 2011 in concordance with the proliferation of the seagrass Ruppia cirrhosa. Ciliate assemblage was largely dominated by Spirotrichea followed respectively by Tintinnida of and Strombidiida. No significant difference was found in the distribution of ciliate species among the stations. Redundancy analysis indicates that abiotic factors (temperature and nutriments) have a significant effect on the dynamics of certain ciliates. For epiphytic ciliates, 4 species were identified: Tintinnopsis campanula, Aspidisca sp., Strombidium acutum and Amphorides amphora. Based on PERMANOVA analyses, ciliates exhibit significant correlations among months and stations. According to ACP, epiphyte distribution follows roughly those of R. cirrhosa and pH. Significant correlations were found between harmful dinoflagellates and both planktonic and epiphytic ciliates.
我们研究了浮游和附生纤毛虫的分布，以及五个站点的环境因素和微藻丰度在加埃尔梅尔湖（突尼斯）。浮游纤毛虫进行了一年的监测，而附生纤毛虫在 2011 年夏季与海草 Ruppia cirrhosa 的增殖同时采集。纤毛虫群落主要由旋口虫类（Spirotrichea）为主，其次是砂壳虫类（Tintinnida）和吸管虫类（Strombidiida）。在各站点之间，纤毛虫种类的分布没有明显差异。冗余分析表明，生物因素（温度和营养物质）对某些纤毛虫的动态有显著影响。对于附生纤毛虫，鉴定出了 4 个物种：Tintinnopsis campanula、Aspidisca sp.、Strombidium acutum 和 Amphorides amphora。根据 PERMANOVA 分析，纤毛虫在月份和站点之间存在显著相关性。根据 ACP，附生生物的分布大致与 R. cirrhosa 和 pH 值相关。有害甲藻与浮游和附生纤毛虫之间存在显著相关性。
