Results 61 to 70 of about 58,361 (344)

Potential Impacts of Low Flows on Fish Foodscapes and Production in a Braided River

River Research and Applications, EarlyView.
ABSTRACT Changes in river discharge affect the physical composition and connectivity of habitats which, in turn, may shape the spatial distribution of fish food abundance, accessibility and quality—the ‘foodscape’—of river ecosystems. However, the influence of river flows on fish foodscapes has received very little attention from scientists. We studied
Rick J. Stoffels, Richard S. A. White, Gergely T. Torok, Richard J. Measures, Kristy L. Hogsden, Alex F. Rose, Paul W. Lambert, Jaret P. Bilewitch, S. Elizabeth Graham, Lisa Smith, Amber R. Brooks, Brian J. Smith   +11 more
wiley   +1 more source

A permeable hyporheic zone may contribute to buffer the effects of a drying event on prey availability for salmonid juveniles

Knowledge and Management of Aquatic Ecosystems
Climate change is increasing the intensity and frequency of hydrological events in freshwater. Summer droughts and drying events drastically reduce the favourable habitat for aquatic organisms shaping interactions among species.
Arevalo Elorri, Bardonnet Agnès, Glise Stéphane, Gueraud François, Huchet Emmanuel, Lange Frédéric, Rives Jacques, Larrañaga Aitor   +7 more
doaj   +1 more source

Soil Macroinvertebrate Presence Alters Microbial Community Composition and Activity in the Rhizosphere

Frontiers in Microbiology, 2019
Despite decades of research, our understanding of the importance of invertebrates for soil biogeochemical processes remains incomplete. This is especially true when considering soil invertebrate effects mediated through their interactions with soil ...
Natalie Bray, Jenny Kao-Kniffin, Serita D. Frey, Timothy Fahey, Kyle Wickings   +4 more
doaj   +1 more source

A report of biological observations at Oceanside #1 and #2 artificial reefs, Carlsbad artificial reef, Pacific Beach artificial reef, and Mission Bay Park artificial reef [PDF]

, 1993
(Document pdf contains 22 ...
Bedford, Dennis W.
core  

Lessons Learnt From Long‐Term Monitoring of River Restoration in an English Chalk Stream

River Research and Applications, EarlyView.
ABSTRACT River restoration can be difficult to evaluate due to insufficient monitoring over timescales too short to adequately capture physical and ecological response. To better understand restoration outcomes, this study quantified changes in physical habitat (depth, velocity, substrate composition) and macroinvertebrates at two restoration projects ...
Lewis A. Dolman, Andrew S. Vowles, Paul S. Kemp   +2 more
wiley   +1 more source

Chapter 9: Aquatic Macroinvertebrates, Section A: Aquatic Macroinvertebrates (Exclusive of Mosquitoes) [PDF]

, 1985
Final Report. Excerpt (Chapter 9, Section A) from The Des Plaines River Wetlands Demonstration Project, Volume II, Baseline Survey, edited by Donald L. Hey and Nancy S.
Brigham, Allison R., Brigham, Warren U., Page, Lawrence M., Suloway, Liane, Unzicker, John D., Webb, Donald W., Wetzel, Mark J.   +6 more
core  

Geomorphic Effects and Habitat Impacts of Large Wood at Restoration Sites in New England

River Research and Applications, EarlyView.
ABSTRACT Large wood (used interchangeably with the term “instream wood”), which refers to trees, logs and other wood within a channel, is beneficial to river ecosystems and is being used more frequently as a component of river restoration projects. We identified metrics to evaluate the effectiveness of large wood to promote ecological and geomorphic ...
Audrey J. Turcotte, Noah P. Snyder, Mathias J. Collins   +2 more
wiley   +1 more source

Community structure of benthic macroinvertebrates in reclaimed and natural tidal flats of the Yangtze River estuary

Aquaculture and Fisheries, 2019
Previous studies have found differences between communities of benthic macroinvertebrates living in constructed tidal flats compared with natural ones.
Junzeng Xue, Jiqiang Yang, Qiong Wang, Richard B. Aronson, Huixian Wu   +4 more
doaj   +1 more source

Experimental Study on Fine Sediment Infiltration (FSI) Processes in Different Gravel Mixtures

River Research and Applications, EarlyView.
ABSTRACT Fine sediment infiltration (FSI) can lead to riverbed clogging, thereby degrading important habitats for aquatic biota in the hyporheic interstitial zone of gravel‐bed rivers (e.g., by reducing oxygen availability). This stress on rivers may increase from anthropogenic influences and can be counteracted by artificial gravel augmentation to ...
Michael Paster, Gábor Fleit, Helmut Habersack, Christoph Hauer   +3 more
wiley   +1 more source

Benthic macrofauna and the limnological parameters of a first-order stream in Atlantic Forest of Brazilian Northeast

Acta Limnologica Brasiliensia, 2014
AIM: The present study aimed to elucidate if the water physical and chemical parameters from a first order stream of Biological Reserve of Saltinho from south Pernambuco induces in the distribution and abundance of benthic macroinvertebrates.
Janaina Câmara Siqueira da Cunha, Renato Galindo de Barros Filho, Rafael Pereira da Silva, Iris Gabrielly Arruda dos Santos, Gilberto Gonçalves Rodrigues   +4 more
doaj   +1 more source