Vázquez María Dolores, Fernández José Angel, Real Carlos, Villares Rubén, Aboal Jesús Ramón, Carballeira Alejo
Grupo de Ecotoxicoloxía, Ecoloxía, EPS, Universidade de Santiago de Compostela, Lugo, Spain.
Sci Total Environ. 2007 Dec 15;388(1-3):357-71. doi: 10.1016/j.scitotenv.2007.07.051. Epub 2007 Sep 7.
The aim of the present study was to establish an aquatic biomonitoring network for the Galician Environmental Specimen Bank (BEAG) (NW Spain). For this, a sampling system was designed that comprised of 121 points distributed throughout Galician rivers, from which samples of water and of three species of bryophytes were collected. The results obtained allowed selection of 74 sampling points and 2 species (Fontinalis antipyretica Hedw. and F. squamosa Hedw.) as the most suitable for use in future BEAG sampling surveys. The two species selected showed a strong similarity in their capacity to accumulate the 17 elements determined (Al, As, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Na, Ni, Pb, Se and Zn), as well as in their ecological preferences. Furthermore, the levels of contamination of epicontinental waters were lower than those observed in previous surveys.
本研究的目的是为加利西亚环境标本库（BEAG）（西班牙西北部）建立一个水生生物监测网络。为此，设计了一个采样系统，该系统由分布在加利西亚河流中的121个采样点组成，从中采集了水样和三种苔藓植物样本。获得的结果使得能够选择74个采样点和2个物种（扭口藓Hedw.和鳞叶藓Hedw.）作为最适合未来BEAG采样调查使用的对象。所选的这两个物种在积累所测定的17种元素（铝、砷、钙、镉、钴、铬、铜、铁、汞、钾、镁、锰、钠、镍、铅、硒和锌）的能力以及它们的生态偏好方面表现出很强的相似性。此外，陆表水的污染水平低于以往调查中观察到的水平。
