Determination of the ecological status of an Aegean river (Türkiye) using benthic macroinvertebrates as an indicator of water quality.

Bakırçay is one of the important rivers of Western Anatolia, Türkiye. The objectives of this study are (a) to determine the diversity of benthic invertebrates distributed in Bakırçay, (b) to evaluate the obtained data using various biological indices, (c) to determine the interactions of species with environmental variables, and (d) to estimate the water quality level of the river using BMWP and ASPT analyses. Samplings were carried out at 15 stations between October 2017 and July 2018, seasonally.

Evaluation of water and sediment quality of İnaltı Cave (Northern Türkiye) by using multivariate statistical methods.

Heavy metals, which are among the important pollutants that threaten ecosystems, have been a particularly intriguing subject of accumulation studies. The present study aimed to reveal the water and sediment quality, pollution status, and their usability for living organisms in 10 stations for the first time in İnaltı cave, which has two underground ponds. Concentrations of 9 heavy metals (Cu, Pb, Zn, Ni, Mn, Fe, Cd, Cr, Al) and 1 metalloid (As) were determined in samples taken.