Results 81 to 90 of about 8,287 (259)

Application of a Presumptive Standards Approach to Evaluate Environmental Flows in a Highly Regulated River Basin

River Research and Applications, EarlyView.
ABSTRACT The presumptive standards approach to environmental flows offers a method to develop interim guidelines for ecological and social‐cultural flow needs. The approach is based on deriving acceptable percent‐of‐flow limits based on naturalised flows (the absence of depletion or alteration of flow), and it can be an effective precursor to a full ...
Jennifer Lento, Wendy A. Monk, Fuad Yassin, Mustakim Ali, Hayley Carlson, Saman Razavi, Timothy D. Jardine   +6 more
wiley   +1 more source

The Role of Sediment Supply on Fish Habitat Dynamics of a Morphologically Active River Widening

River Research and Applications, EarlyView.
ABSTRACT Restoration measures, such as river widening, aim to reactivate key morphodynamic processes, which are critical drivers of fluvial habitat dynamics. While some evidence supports the important role of sediment supply on river widening's morphology, its link to fish habitat availability and dynamics remains unclear.
Mahmoud O. M. Awadallah, Francesco Caponi, David F. Vetsch, Robert M. Boes, Davide Vanzo   +4 more
wiley   +1 more source

Impact of the Addition of a Shading Algorithm in a Physically Based Conceptual River Hydrological–Temperature Model

River Research and Applications, EarlyView.
ABSTRACT Anthropogenic impacts on the thermal regime of rivers include climate change and deforestation. For the latter, developing modelling tools that can account for the impact of varying vegetation cover on river temperatures is essential. This study describes a new addition to the CEQUEAU hydrological and water temperature model: a shading ...
Zouhir Dichane, Habiba Ferchihi, Cyrille Gatien Kafack Zamo, Jesús Roberto Araujo Sánchez, André St‐Hilaire   +4 more
wiley   +1 more source

Distribuição vertical da comunidade fitoplanctônica do lago dos Tigres (Goiás, Brasil) = Vertical distribution of phytoplankton communities in Tigres Lake (Goiás, Brazil)

Acta Scientiarum: Biological Sciences, 2008
O lago dos Tigres é um lago do tipo vale bloqueado, sendo que não foiregistrado estudo evidenciando a distribuição vertical fitoplanctônica para esse tipo de lago; dessa forma, esta pesquisa assume um caráter pioneiro.
João Carlos Nabout, Ina de Souza Nogueira   +1 more
doaj  

Reconstructing Long‐Term Historical Hydrologic Alteration to Support Environmental Flows in Texas

River Research and Applications, EarlyView.
ABSTRACT Understanding and quantifying hydrologic alteration is essential for effective watershed management and ecological conservation. This study developed a modeling framework to predict reference hydrology and assess and model hydrologic alteration across Texas using publicly available geospatial datasets.
Mark B. Lueders, Ryan A. McManamay, Jay A. Oliver, David Young, Preston Bean, Kevin Mayes   +5 more
wiley   +1 more source

The Return of the Allis Shad (Alosa alosa) to the Lower Navigable Reaches of the Seine: Locks Play a Role

River Research and Applications, EarlyView.
ABSTRACT In France, it is estimated that shads (Alosa spp.) have lost 69% of their historical range, mainly due to disrupted river connectivity. After an absence of one century, signs of their return in the Seine River have been recorded over the past two decades: adult and juvenile specimens have been caught by anglers or recorded at video‐counting ...
Céline Le Pichon, Frédérique Bau, Armand Michelot, Evelyne Tales, Sébastien Grall, Eric Rochard   +5 more
wiley   +1 more source

Effects of Sediment‐Control Operations on Fish and Macroinvertebrate Communities in Dam Reservoirs

River Research and Applications, EarlyView.
ABSTRACT Sediments are avoided in many river and dam managements because of their adverse effects on water usage and flood control. Recently, sedimentation control measures, including sluicing, have been employed to manage sediments in river channels and restore communities in dammed rivers.
Daisuke Nakano, Jumpei Suzuki, Ryotaro Mori, Yusuke Shinyama, Yuuichi Kitago, Takashi Ihara, Tsuyoshi Saito   +6 more
wiley   +1 more source

Basic limnology of fifty-one lakes in Costa Rica

Revista de Biología Tropical, 2003
We visited 51 lakes in Costa Rica as part of a broad-based survey to document their physical and chemical characteristics and how these relate to the mode of formation and geographical distribution of the lakes. The four oxbow lakes were low in elevation
Kurt A. Haberyan, Sally P. Horn, Gerardo Umaña V.   +2 more
doaj  

River Ice Processes Modelling: A Comprehensive Review

River Research and Applications, EarlyView.
ABSTRACT River ice strongly influences hydrology, hydrodynamics, and ecosystems in cold regions, with an impact on flooding, hydropower generation, navigation, and aquatic habitats. Modeling river ice processes is therefore essential for both scientific understanding and operational management.
Harusha Abeynayake, Heli Yu, Epari Ritesh Patro, Ali Torabi Haghighi   +3 more
wiley   +1 more source

A Functional Flows Framework for the Terminal Great Salt Lake Basin: Can We Have Our Lake and Drink It Too?

River Research and Applications, EarlyView.
ABSTRACT Terminal basins provide unique aquatic environments that are often highly sensitive to streamflow contributions, making them a focal point for environmental water management. However, the water needs for terminal lake, wetland, and river ecosystems, and how they relate, remain a fundamental knowledge gap that constrains our ability to ...
Belize Lane, Melissa Stamp, Sarah E. Null, Paul Thompson, Jeffrey Ostermiller, Farah Nusrat, Noelle Patterson, Maddie Witte, Bethany Neilson, Michelle Baker   +9 more
wiley   +1 more source