Many hydroelectric dams have been in place for 50 - >100 years, which for most fish species means that enough generations have passed for fragmentation induced divergence to have accumulated. However, for long-lived species such as Lake Sturgeon, Acipenser fulvescens, it should be possible to discriminate between historical population structuring and contemporary gene flow and improve the broad...

First posted November 23, 2022 For additional information, contact: Director, Forest and Rangeland Ecosystem Science Center777 NW 9th Street, Suite 400Corvallis, OR 97330 In this report, we consider evolutionary ecological connectivity for westslope cutthroat trout (Oncorhynchus clarkii lewisi) mountain whitefish (Prosopium williamsoni) within the Pend Oreille River in northeastern Washington S...

Water quality in tropical rivers is changing rapidly. The ongoing boom of dam construction for hydropower one the drivers this change. In particular, stratification reservoirs induces oxygen deficits their deep waters and warmer surface water temperatures, which often translate into altered thermal regimes downstream river systems, with cascading consequences entire aquatic ecosystem. Operation...

The sudden breach of a landslide dam seriously threatens the safety people and property downstream. failure mechanism dams is significantly affected by grain size distribution material. In this study, series experiments are conducted to investigate effects composition on stability, process, parameters dams. results show that remain stable with seepage for coarse-dominated dam, fail overtopping ...

Assessing the impacts of environmental change and anthropogenic activities on the historical and current total suspended matter (TSM) pattern in Dongting Lake, China, is a large challenge. We addressed this challenge by using more than three decades of Landsat data. Based on in situ measurements, we developed an algorithm based on the near-infrared (NIR) band to estimate TSM in Dongting Lake. T...

This discussion is centralized around an incident that took place in the Belgian village Witry the 17th of September 2014. A tractor accident led to the discharge of an aqueous solution of the herbicide metazachlor into the creek Moyémont that further merges into the river Sûre. About 20 km downstream, these waters supply the lake of the Upper-Sûre in Luxembourg, the biggest artificial lake and...

The presence of microplastics (MPs) in several components different ecosystems has aroused great concern and led to numerous studies on MP pollution. Although there been an increasing number these aquatic ecosystems, no data about the pollution zebra mussel (Dreissena polymorpha, Pallas 1771) living Beyhan dam lake (Elaz??, Türkiye) are available. This study aimed investigate MPs freshwater spe...