Impact of Dams on Stream Fish Diversity: A Different Result
نویسندگان
چکیده
Impoundments can drastically change the physical and biological characteristics of fluvial systems. Changes in characteristics, such as reductions flow, increased sediment deposition, surface area, often influence system’s components, including plant, macroinvertebrate, fish assemblages. In addition to having direct effects on impounded waterbodies, impoundments also have wide-ranging at watershed scale, particularly upstream tributary streams. The purpose this study was assess magnitude these effects. We analyzed historical data from 26 streams distributed across five sub-basins Bluff Hills region Yazoo Basin, MS, USA. All major rivers are by large (11,240–26,143 hectares) reservoirs for flood control. compared assemblages located downstream four using PERMANOVA, contrary expectations, we found no significant differences between explore several possible explanations discrepancy suggest that stream assemblage response impoundment may be nuanced regional species pool, history conditions watershed, resistance periodic disturbances.
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ژورنال
عنوان ژورنال: Diversity
سال: 2023
ISSN: ['1424-2818']
DOI: https://doi.org/10.3390/d15060728