In Cameroon, rivers are subjected to physicochemical disturbances, which increase the degradation of water quality. The aim this study was determine spatio-temporal diversity phytoplankton groups and evaluate environmental parameters sampling sites in order assess quality two hydrographic networks. Physicochemicals analyzes were carried out according standard methods while organisms harvested b...

The distribution of the phytoplankton community in different locations Puah Reservoir, Malaysia was investigated from May to December 2019 examine compositions and density. Seven sampling were selected namely Terengganu Mati (P1), Limbing Besar (P2), Temba Outlet (P3), Pela-gong (P4), Sireh (P5), Centre Dam (P6) Power Intake (P7). A total 543 cell/mL recorded 35 genera reservoir. These identifi...

Abstract. Arsad S, Putra KT, Latifah N, Kadim MK, Musa M. 2021. Epiphytic microalgae community as aquatic bioindicator in Brantas River, East Java, Indonesia. Biodiversitas 22: 2961-2971. One way to monitor water quality is by using biological indicators, namely epiphytic (periphyton). This study aims analyze the periphyton structure and river health status a saprobic index. The research locati...

The effects of selenium (Se) on the growth and antioxidant activity in Spirulina platensis were investigated. S. platensis was grown in zarrouk medium containing three different concentrations of selenate (Na2SeO4) (0 as a control, 5 and 10 mg l-1) for 7 days. Selenate at the concentration of 5 mg l-1was found to improve S. platensis growth. However, selenate was toxic to S. platensis at the co...

In photosynthesis, a very small amount of the solar energy absorbed is transformed into chemical energy, while the rest is wasted as heat and fluorescence. This excess energy can be harvested through biophotovoltaic platforms to generate electrical energy. In this study, algal biofilms formed on ITO anodes were investigated for use in the algal biophotovoltaic platforms. Sixteen algal strains, ...

为了解不同农业施肥管理方式对水体浮游植物群落的影响，本研究以江苏句容戴庄有机示范村和常规农业管理区池塘浮游植物为对象，分析冬夏两季浮游植物群落特征及相关水环境因子.结果表明：冬季有机和常规农业区域的浮游植物分别检到7门95种和7门111种，夏季分别检到7门102种和6门112种，有机农业区浮游植物由冬季的隐藻-绿藻型向夏季的蓝藻-绿藻型变化，常规农业区从隐藻-绿藻型向蓝藻-硅藻型变化，蓝藻逐渐取代隐藻的优势地位.夏季各池塘浮游植物alpha多样性没有显著的区域差异，但冬季常规农业区浮游植物物种丰富度、蓝藻和裸藻的Shannon-Wiener多样性指数显著较高.指示物种分析显示，谷皮菱形藻（Nitzschia palea）和梅尼小环藻（Cyclotella meneghiniana）为有机农业区指示物种，而梭形裸藻（Euglena acus）、针形纤维藻（Ankistrodesmus ...