The Ephemeroptera, Plecoptera and Trichoptera (EPT) community structure and the specific sensitivity of certain EPT genera were found to be influenced by water parameters in the rivers of Gunung Jerai Forest Reserve (GJFR) in the north of peninsular Malaysia. The scores of EPT taxa richness of >10 in all rivers indicated all rivers' habitats were non-impacted, having good water quality coincidi...

Mapping a river’s geometry provides valuable information to help understand the topology and health of an environment and deduce other attributes such as which types of surface vessels could traverse the river. While many rivers can be mapped from satellite imagery, smaller rivers that pass through dense vegetation are occluded. We develop a micro air vehicle (MAV) that operates beneath the tre...

Evaluating the permeability of potential barriers to movement, dispersal and gene exchanges can help describe spreading patterns of wildlife diseases. Here, we used landscape genetics methods to assess the genetic structure of the striped skunk (Mephitis mephitis), which is a frequent vector of rabies, a lethal zoonosis of great concern for public health. Our main objective was to identify land...

With the increasing demand for energy sources, a further development hydropower energy resource will be an inevitable choice for China’s resource strategy. The cascade hydropower station construction produced serious impacts on the regional eco-environment. The most obvious characteristics of impacts caused by the cascade hydropower plant development are progressive, cumulative and regional, wh...

Tropical freshwater environments, like rivers, are important reservoirs of microbial life. This study employed metagenomic sequencing to survey prokaryotic microbiota in the Solimões, Purus, and Urucu Rivers of the Amazon Basin in Brazil. We report a rich and diverse microbial community.

Subsistence harvesting by a small community does not substantially compromise coral reef fish assemblages Tyson S. H. Martin*, Rod M. Connolly, Andrew D. Olds, Daniela M. Ceccarelli, Douglas E. Fenner, Thomas A. Schlacher, and Maria Beger Australian Rivers Institute – Coast and Estuaries, and School of Environment, Griffith University, Gold Coast, QLD 4222, Australia School of Science and Engin...

A flow considered effective or dominant in the process of stable channel forming, is the bankfull discharge associated to frequency between 1 and 2 years with an average of 1.5 year, according to Dunne and Leopold, 1978. Bankfull discharge or forming discharge is the flow which defines the morphological characteristics of the channel such as bars, meanders and curves. In this article, different...

To ensure a healthy and biodiverse ecosystem in cobble and boulder bed rivers, it is imperative that the channel bed is maintained. In pristine catchments this is achieved by the range of flows characteristic of the natural flow regime, which typically incorporates “maintenance” flood flows of different timing, duration and frequency. The construction of dams however, leads to a change in the f...