Effects of Land Use Characteristics, Physiochemical Variables and River Connectivity on Fish Assemblages in a Lowland Basin

• DOI: 10.20944/preprints202309.1991.v1
• Publication Date: 2023-09-29T03:44:11Z
• Authors: Zhiming Zhang; Junfeng Gao; Yongjiu Cai
• Keywords: Fresh water fish; Environment variable; Riparian forest

Human disturbances can have severe environmental impacts on freshwater ecosystems. The main aim of this study was to detect the influences physiochemical variables, land-cover characteristics, and river connectivity fish assemblages in Lake Chaohu Basin, China. A cluster analysis variables identified four groups sites that characterized by significantly different gradients local scale. These showed increasing from upper reaches lower reaches. At same time, among groups, values generally increased with less human activity towards more activities. For instance, some (e.g., width, water depth, nitrate, phosphate) groups. In contrast, taxa richness diversity indices were not However, significant variation (p=0.026). addition, determined riparian land uses woodland grassland), flow velocity, elevation regulating variance communities, for only order number branches along a path left stem affected communities. Therefore, new practices aimed at maintaining even canopy coverage velocity rivers should be integrated into conservation planning ecosystems, especially basin.