The impact of an industrial effluent on the water quality, submersed macrophytes and benthic macroinvertebrates in a dammed river of Central Spain

Pollution evaluation in the Shahrood River: Do physico-chemical and macroinvertebrate-based indices indicate same responses to anthropogenic activities?

“…Chemical and nutrient pollution from anthropogenic activities have been well documented in rivers (Azrina et al, 2006;Gonzalo and Camargo, 2013), and different significant effects on macroinvertebrates have been shown at several levels of biological organization (e.g. genus and family levels), namely a reduction of species richness, a decrease in the abundance of some sensitive species, an increase of tolerant species, among many others Mangadze et al, 2016;Sharifinia et al, 2016).…”

“…Most probably, the impact from organic pollution sources such as intense activity of the leather-making factory, municipal and domestic wastewater had an adverse impact on the composition of macroinvertebrate community. Although these macroinvertebrate based indices have been primarily applied to evaluate the impact of organic pollution and nutrient enrichment that can affect the availability of dissolved oxygen in freshwater ecosystems (Azrina et al, 2006;Sharifinia et al, 2012;Gonzalo and Camargo, 2013;Andrianova, 2015), it should be clear that they can also respond relatively well to the impact of other physico-chemical parameters. This water pollution would be directly responsible for considerable changes in the values of macroinvertebrate based indices (with decreasing in BMWP values, and conversely FBI increasing its values) at sampling sites that located in downstream from the agricultural, industrial, municipal and domestic effluents (especially at S5 and S6).…”

“…The collected samples were placed in polythene bags and preserved with 4% buffered formaldehyde for subsequent analyses. The samples were identified and counted in the laboratory using a light stereomicroscope (Gonzalo and Camargo, 2013), placed in individual vials and identified up to the genus' level (Hynes, 1980;Elliott et al, 1988;Milligan and Hulbert, 1997;Pescador et al, 2004).…”

Metal bioavailability in freshwater sediment samples and their influence on ecological status of river basins

“…Lainé et al (2014) observed that taxonomic metrics based on fish, macrophytes and benthic macroinvertebrates showed similar responses (a strong decrease in species richness, diversity and equitability) to toxic pollution, including metals and some nutrients. Gonzalo and Camargo (2013) compared the impact of an industrial effluent on macroinvertebrates and marophytes communities. In this study, they concluded that the community of submersed macrophytes exhibited slighter responses and lower discriminatory power than the community of benthic macroinvertebrates, thus indicating that metrics and indices based on macroinvertebrates may be more suitable for the biological monitoring of water pollution and habitat degradation in rivers receiving industrial effluents.…”

Bayesian belief network models to analyse and predict ecological water quality in rivers

“…Macroinvertebrates are widely used to monitor and assess water quality of freshwater bodies (Czerniawska-Kusza, 2005;Everaert et al, 2014;Gonzalo and Camargo, 2013;Lock et al, 2011). Most aquatic macroinvertebrates are relatively immobile and reside in Table 1 Ecological water quality classes, defined according to the BMWP/Col index (Alvarez, 2006 the benthic habitat for at least part of their life.…”