Bobori D C, Ntislidou Ch, Petriki O, Chronis I, Kagalou I, Lazaridou M
Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.
Department of Civil Engineering, School of Engineering, Democritus University of Thrace, 67100, Xanthi, Greece.
Environ Monit Assess. 2018 Feb 1;190(3):106. doi: 10.1007/s10661-018-6484-y.
The role of benthic macroinvertebrate and fish communities for assessing the ecological quality of an artificial re-constructed, after 50 years of dryness, Mediterranean water body (Karla Reservoir, Greece) is presented. Moreover, we provide knowledge on the structure of the biological communities and their functioning role, for inspiring feature actions that will contribute to biodiversity protection and ecosystem services. Water (physicochemical parameters), benthic macroinvertebrates, and fish were monitored during a 2-year survey (2013-2015) in Karla and Kalamaki reservoirs and the inflowing ditches. A clear temporal pattern was evident for all sampling stations studied, differentiating the low- and high-flow period samples as to their physicochemical parameters. Redundancy analysis (RDA) revealed NO-N, total nitrogen and total dissolved phosphorous as the most significant environmental parameters in explaining benthic invertebrate variance in ditches. Generally, tolerant to organic pollution macroinvertebrate taxa were abundant in ditches and reservoirs, while the fish fauna in Karla was composed almost exclusively of planktivorous and invertivorous species. Macroinvertebrate (GLBiI) and fish (GLFI) indices classified the ecological quality of Karla Reservoir as "poor" while ditches were classified as "bad" according to HESY-2. The anthropogenic pressures applied in the catchment and the benefits of improving water quality are discussed in the context of the implementation of Water Framework Directive 2000/60/EC for introducing sustainable management plans, taking into account some ecological restoration principles.
本文介绍了底栖大型无脊椎动物和鱼类群落对评估一个在干涸50年后人工重建的地中海水体（希腊卡拉水库）生态质量的作用。此外，我们还提供了有关生物群落结构及其功能作用的知识，以启发有助于生物多样性保护和生态系统服务的特色行动。在2013 - 2015年的两年调查期间，对卡拉水库、卡拉马基水库及其流入沟渠中的水（理化参数）、底栖大型无脊椎动物和鱼类进行了监测。所有研究的采样站都呈现出明显的时间模式，根据理化参数区分了低流量期和高流量期的样本。冗余分析（RDA）表明，在解释沟渠中底栖无脊椎动物的变化时，亚硝酸盐氮、总氮和总溶解磷是最显著的环境参数。一般来说，耐有机污染的大型无脊椎动物类群在沟渠和水库中数量丰富，而卡拉水库中的鱼类几乎完全由浮游生物食性和无脊椎动物食性的物种组成。根据HESY - 2标准，大型无脊椎动物（GLBiI）和鱼类（GLFI）指数将卡拉水库的生态质量评为“差”，而沟渠的生态质量评为“极差”。在实施2000/60/EC号《水框架指令》以引入可持续管理计划的背景下，考虑到一些生态恢复原则，讨论了集水区施加的人为压力以及改善水质的益处。
