期刊名称：Journal of Environmental & Analytical Toxicology
电子版ISSN：2161-0525
出版年度：2018
卷号：8
期号：3
页码：1-12
DOI：10.4172/2161-0525.1000570
语种：English
出版社：OMICS International
摘要：Lake Tinishu Abaya, which is also known as Small Abya, is a shallow and small-sized inland water body in the rift valley lakes basin of Ethiopian. The lake is a source of livelihood and supports many socioeconomic activities of which fishing, small-scale irrigation, and domestic water uses are among others. However, the lake has not given attention predominantly due to its remote location and having a small size compared to other rift valley lakes of Ethiopia. The purpose of this research was, therefore, to determine the water quality and productivity of Lake Tinishu Abaya with respect to the changes in various physicochemical factors to give a long-term information for multidimensional use of the Lake water. Water samples collection was carried out for a year on a monthly basis between January and December 2016 from two predefined sampling stations (open and shore). In-situ and Laboratory measurements of the various physicochemical parameters (Temperature, pH, DO, conductivity, TDS, TSS, water transparency, euphotic depth, NH4, NO2, NO3, SiO2, SRP, TP) were performed using the standardized method. The trophic state was determined using Carlson's trophic state determination of an inland water body. The results of the study generalized that the lake water is well oxygenated, slightly warm, alkaline; and contained more TSS, TDS, and Electrical conductivity. The lake water was very turbid, low transparency, and fresh water. The major inorganic nutrients were relatively high. The study also revealed that the trophic nature of the lake was a eutrophic system which shows the lake water is productive. Most of the physicochemical parameters and major inorganic nutrients analyzed indicated that the water quality and productivity of the Lake Tinishu Abaya is suitable for the survival of most of aquatic life, fishing, irrigation and many other related multidimensional uses.
关键词：Lake Tinishu abaya; Physicochemical; Rift valley lake; Trophic state; Water quality
