Many reports have demonstrated that the removal of aquaculture purse seine is conducive to restoration aquatic vegetation and improvement in water quality, but less attention has been paid effects on phytoplankton. This paper addressed response phytoplankton community structure after Caizi Lakes. The results showed average dissolved oxygen (from 7.43 ± 0.25 mg/L 9.12 0.49 mg/L) Secchi depth 28....

The somatic and populational growth of living organisms is affected directly and indirectly by the environment (Nikolskii, 1969; Weatherley, 1972; Pauly, 1984; Margalef, 1995). A direct effect is metabolism change (much more apparent in ectotherm organisms); indirect effects include variable food availability and differing vulnerability to predation since temperature and other physical variable...

In the present study, some ecological factors were studied for Amphipoda at different depths. The Shannon, Margalef, and Hill indices were used to determine the  species diversity, richness and evenness, respectively. In addition, the association and niche overlap values were estimated. Indices of species richness and diversity were highest at 50 and 100m depths, respectively.  The ordination o...

The concept and methods of ecological diversity in communities were applied to phytoplankton categorized by flow cytometric measurements related to size and chlorophyll content. Each cytometric signature was condensed to single numerical values indicative of diversity and evenness. Measurements pooled from studies disparate in temporal and spatial scales indicated greater chlorophyll biomass an...

This study sought to clarify the composition of soil fungal and bacterial communities along an elevation gradient in arid montane ecosystem as well influence environmental factors (soil properties, climate, topography, plant diversity) upon microbial community structures. Four vegetation types—montane desert steppe (mean elevation: 1761 m), shrub 2077 subalpine coniferous forest 2485 2903 m)—we...

On the basis of “Environmental quality standard for surface water” (GB 3838-2002) in China, eight water indexes were measured M River, including pH, temperature (T), transparency (SD), dissolved oxygen (DO), chemical needs Oxygen (COD), ammonia nitrogen (NH 3 -N), total (TN), phosphorus (TP). Using single factor index method, it is concluded that pollution River serious and beyond Grade V envir...

In order to evaluate the macrozoobenthic fauna of Çıldır, Aktaş and Aygır lakes, 47 taxa were identified as a result samplings carried out in different periods 2013, 2017 2019. 41 43 at species level new records for study area. The dominant Lake Çıldır Gyraulus (Armiger) crista (4.49%), Paratanytarsus lauterborni (3.90%) Virgotanytarsus arduensis (3.80%). It was seen that gammarid population de...