Results 91 to 100 of about 36,711 (253)

A Meta‐Analysis on Environmental Triggers of Spawning Migrations Reveals a New Classification of Thermal Guilds in European Freshwater Fishes

Fish and Fisheries, EarlyView.
ABSTRACT Fish migration through river networks is essential for completing life cycles and accessing critical habitats, but fragmentation increasingly disrupts spawning movements. In Europe, over one million barriers limit connectivity and create trade‐offs between ecological integrity and human uses, such as hydropower, flood control, fisheries and ...
Christian Schlautmann, Robert Arlinghaus, Daniel Hering, Armin W. Lorenz, Christian Wolter, Christian Schürings   +5 more
wiley   +1 more source

River-floodplain connectivity and residence times controlled by topographic bluffs along a backwater transition

Frontiers in Water
The morphology of river levees and floodplains is an important control on river-floodplain connectivity within a river system under sub-bankfull conditions, and this morphology changes as a river approaches the coast due to backwater influence ...
Nelson Tull, Andrew J. Moodie, Andrew J. Moodie, Paola Passalacqua   +3 more
doaj   +1 more source

Integrated methodology for assessing the effects of geomorphological river restoration on fish habitat and riparian vegetation

, 2011
Changes in the geomorphology of rivers have serious repercussions, causing losses in the dynamics and naturalness of their forms, going in many cases, from a type of meandering channel, with constant erosion and sedimentation processes, to a channelized ...
García de Jalón Lastra, Diego, Gonzalez del Tanago del Rio, Marta, Marchamalo Sacristán, Miguel, Maroto, Judit, Martínez Marín, Rubén   +4 more
core  

Using Eye Lens Stable Isotopes to Identify the Rearing Origin of Fall Age‐0 Walleye (Sander vitreus)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Isotope values in fish eye lenses may be useful in differentiating rearing origins. We compared eye lens isotopic values of fall fingerling age‐0 walleye (Sander vitreus) reared in a hatchery pond, a recirculating aquaculture system (RAS), and a natural lake. Using 10 fish per rearing source, we delaminated layers from one eye lens per fish to
Justin M. Sturtz, Benjamin J. Schall, Matthew J. Ward, Cody E. Treft, Steven R. Chipps, Christopher A. Cheek   +5 more
wiley   +1 more source

Floodplain management in temperate regions : is multifunctionality enhancing biodiversity? [PDF]

, 2013
Background: Floodplains are among the most diverse, dynamic, productive and populated but also the most threatened ecosystems on Earth. Threats are mainly related to human activities that alter the landscape and disrupt fluvial processes to obtain ...
Balázs, Lukács, Biró, Marianna, Borics, Gábor, Bunting, Stuart W, Damm, Christian, Essl, Franz, Euller, Katrin, Gasso, Viktor, Hainz-Renetzeder, Christa, Henle, Klaus, Hermann, Anna, Hoffmann, Maurice, Hudin, Stephanie, Jaquier, Sophie, Kanka, Robert, Kropik, Michaela, Krug, Andreas, Lauwaars, Sophie G, Mauerhofer, Volker, Pusch, Martin, Schindler, Stefan, Schulz-Zunkel, Christiane, Sebesvari, Zita, van der Sluijs, Theo, Wrbka, Thomas, Zulka, Klaus Peter   +25 more
core   +3 more sources

Map and Archival Evidence of the Historical Avulsion of the Brahmaputra River

The Geographical Journal, EarlyView.
Short Abstract One of the world's great rivers, the Brahmaputra, avulsed—changed course—significantly sometime between the dates of 1765 and 1830. These are the dates of surveys by James Rennell (grey) and Richard Wilcox (black), both under the direction of the East India Company; no other surveys between these dates can refine the estimate of the ...
Keith Richards, Hugh Brammer, Patricia Saunders   +2 more
wiley   +1 more source

Abundant prey or optimal microhabitat? Natrix tessellata stays hidden in safe areas in a diverse floodplain along the Danube at Göd, Hungary [PDF]

, 2013
Natrix tessellata (Laurenti, 1768) is a diurnal piscivorous Eurasian snake species with a large distribution area. Along the River Danube it is present in the floodplain and along the lower stretch of tributaries. The distribution of N.
Gaebele, Tibor, Guti, Gábor, Potyó, Imre, Puky, Miklós, Weiperth, András   +4 more
core  

Resilience of riparian spiders to floods: evidence from a mesocosm study

Insect Conservation and Diversity, EarlyView.
Mesocosm experiment to assess the impact of flood duration on flood‐naïve riparian spider communities. In May, spider richness decreased with flood duration, while in June, flood duration increased abundance, richness and promoted wetland specialists. Flood‐naïve riparian spiders unexpectedly appear highly resilient to flooding.
Stephane Mutel, Martin H. Entling, Caroline Breithaupt, Gemma Burgazzi, Franziska Fiolka, Franziska Middendorf, Collins Ogbeide, Mirco Bundschuh, Ralf Schulz, Alessandro Manfrin   +9 more
wiley   +1 more source

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus

Journal of Fish Biology, EarlyView.
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Alexandre Peressin, João de Magalhães Lopes, Francisco Ricardo Andrade Neto, Gilmara Junqueira Machado, Carlos Bernardo Mascarenhas Alves, Luis David Solis Murgas, Paulo Santos Pompeu   +6 more
wiley   +1 more source

Flood Wave Attenuation as a Function of Floodplain Storage, Secondary Channel Conveyance, and Discharge

Water Resources Research
The elevation of natural river levees can vary considerably along the length of a river, and low‐lying features such as secondary floodplain channels allow for hydrologic exchange between a river and its floodplain over a range of discharges.
N. Tull, P. Passalacqua
doaj   +1 more source