Estado ecológico de los ríos incluidos dentro del parque Nacional de Ordesa y Monte Perdido (Cuenca del Ebro, Aragón), mediante indicadores de macroinvertebrados

Q3 Social Sciences Pirineos Pub Date : 2015-12-30 DOI:10.3989/PIRINEOS.2015.170002
M. Valladolid, M. Arauzo, L. Jiménez
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引用次数: 1

Abstract

We provide information about the ecological status of Arazas, Bellos and Yaga rivers (Ordesa y Monte Perdido National Park), obtained from samples collected by volunteers during the 2013 spring-summer season, included in the “Volunteering activities in the Parks Network” program (MAGRAMA). In each river three points have been selected, all belonging to Type 27: High mountain rivers, except one that is Type 26: Humid calcareous mountain river. For each point several macroinvertebrate indexes (IBMWP, IASPT, NFAM, NFPLE and EPT) and their ecological quality ratios (EQR) were calculated. As a whole, 72% of the IBMWP measurements show Very good or Good quality, a 22% Moderate and a 6% Deficient . The Yaga River showed all the measures as Very Good-Good while in the Arazas River we found the three classes of quality cited. In general, for each river the values of the indexes are decreasing from mouth to source, while most of values are increasing in a temporal pattern (from spring to late summer) in each sampling point, except in two points, Arazas-3 and Bellos-2, that show the opposite pattern.
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Ordesa和Monte Perdido国家公园(Ebro盆地,aragon)河流的生态状况,通过大型无脊椎动物指标
我们提供了关于Arazas, Bellos和Yaga河(Ordesa y Monte Perdido国家公园)的生态状况的信息,这些信息来自2013年春夏期间志愿者收集的样本,包括在“公园网络志愿活动”计划(MAGRAMA)中。在每条河流中选取了3个点,除26型湿润钙质山地河流外,均属于27型高山河流。计算各点的大型无脊椎动物指数(IBMWP、IASPT、NFAM、NFPLE和EPT)及其生态质量比(EQR)。总体而言,72%的IBMWP测量结果显示质量非常好或良好,22%为中等,6%为不足。Yaga河的所有指标都是Very Good-Good,而在Arazas河,我们发现了三个质量等级。总体上,各条河流的指数值从河口到源头呈递减趋势,除Arazas-3和Bellos-2两个采样点呈相反趋势外,其余采样点的指数值在春季至夏末呈递增趋势。
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来源期刊
Pirineos
Pirineos Environmental Science-Ecology
CiteScore
1.20
自引率
0.00%
发文量
9
审稿时长
28 weeks
期刊介绍: Pirineos. A Journal on Mountain Ecology publishes papers dealing with the dynamics of mountain ecosystems, that is, with processes and relationships established between living beings and their environment, in the highest regions on earth. Therefore it tries to explain the global functioning of mountainous areas and the spatial organization of processes and resources, with an integrated perspective in which man performs an important role.
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