Results 31 to 40 of about 563,406 (341)

Water quality and ecological risks in European surface waters – Monitoring improves while water quality decreases

Environment International, 2021
Aquatic ecosystems are at risk of being impaired by various organic chemicals, however comprehensive large-scale evaluations of waterbodies’ status and trends are rare.
Jakob Wolfram, Sebastian Stehle, Sascha Bub, Lara L. Petschick, Ralf Schulz   +4 more
doaj   +1 more source

Coupling interaction between biodiversity and aquatic habitat area in Western Route Project vicinity

Water Science and Engineering, 2010
The Western Route of the South-to-North Water Transfer Project will divert water from the upper Yangtze River and its tributaries, the Dadu River and Yalong River, to the upper Yellow River.
Shi-min Tian, Zhao-yin Wang, Xiang-jun Liu, Shi-kui Liang   +3 more
doaj   +1 more source

Ontogenetic shifts in terrestrial reliance of stream-dwelling brown trout

Journal of Limnology, 2016
This study focuses on terrestrial reliance of brown trout (Salmo trutta) and compared it to the potential prey available (macrozoobenthos and drifting invertebrates) in three temperate rivers (Galicia, NW Spain), with special emphasis on variations in ...
Javier Sánchez-Hernández, Fernando Cobo   +1 more
doaj   +1 more source

Impacts of Warming on Reciprocal Subsidies Between Aquatic and Terrestrial Ecosystems

Frontiers in Ecology and Evolution, 2021
Cross-ecosystem subsidies are important as their recipients often rely on them to supplement in situ resource availability. Global warming has the potential to alter the quality and quantity of these subsidies, but our knowledge of these effects is ...
Eoin J. O’Gorman, Irina Chemshirova, Irina Chemshirova, Órla B. McLaughlin, Rebecca I. A. Stewart, Rebecca I. A. Stewart   +5 more
doaj   +1 more source

The response of perennial and temporary headwater stream invertebrate communities to hydrological extremes [PDF]

, 2009
The headwaters of karst rivers experience considerable hydrological variability, including spates and streambed drying. Extreme summer flooding on the River Lathkill (Derbyshire, UK) provided the opportunity to examine the invertebrate community response
A Chakona, A McLachlan, A Meyer, AD Berrie, Adam M. Greenwood, AJ Boulton, AJ Boulton, AJ Boulton, AJ Boulton, AM Meyer, AM Suren, Anne L. Robertson, C Lindegaard, CM Way, CY Kramer, DA Hughes, DA Lytle, DA Lytle, DA Olsen, DD Williams, DD Williams, EB Vinogradova, EH Stanley, H Dahms, H Smith, H Smith, J Gagneur, J Gunn, J Lancaster, J Landin, JF Wright, JF Wright, John Gunn, JW Tukey, K Costil, KM Fritz, L Montalto, M Ladle, M-J Dole-Olivier, MT Furse, N Bonada, NA Erman, P Humphries, Patrick D. Armitage, Paul J. Wood, Pisces Conservation Ltd., PJ Wood, PS Lake, RA Byrne, Rachel Stubbington, S Fenoglio, S Shackley, S Trouve, SD Rundle, SM Clinton, T Datry, T Marsh, T Pipan, V Salavert, WA Monk   +59 more
core   +1 more source

Food webs in forest and pasture streams in the Waikato region, New Zealand: A study based on analyses of stable isotopes of carbon and nitrogen, and fish gut contents. [PDF]

, 1997
Stable isotopes of carbon (C) and nitrogen (N) were studied in 11 stream communities in the Waikato region of New Zealand. From comparisons of mean d13C and d15N values, food webs in the shaded, forest streams were clearly based on allochthonous material
Biggs B., Lester P. J., Main M. L.
core   +2 more sources

Combined stable isotope and gut contents analysis of food webs in plant-dominated, shallow lakes [PDF]

, 2003
1. To determine feeding links between primary producers, invertebrates and fish, stable isotope analyses and gut content analyses of fish were conducted on the components of four shallow, eutrophic to hypertrophic, plant-dominated lakes. 2.
Adams, Ben-David, Brönmark, Brönmark, Burks, Canfield, Carpenter, Cattaneo, DeNiro, DeNiro, Diehl, Diehl, Fry, Fryer, Fryer, Gervais, Grey, Hecky, Hoyer, J. Iwan Jones, Jeppesen, Jeppesen, Jones, Jones, Jones, Jones, Jones, Kairesalo, Mackereth, Marklund, Mazumder, Moss, Pennock, Phillips, Phillips, Phillips, Sand-Jensen, Scheffer, Susan Waldron, Svanbäck, Thorpe, Timms, Vander-Zanden, Yoshii, Yoshioka, Zippin   +45 more
core   +1 more source

Terrestrial–aquatic linkages in spring-fed and snowmelt-dominated streams

Journal of Freshwater Ecology, 2017
The importance of trophic linkages between aquatic and terrestrial ecosystems is predicted to vary as a function of subsidy quantity and quality relative to in situ resources. To test this prediction, I used multi-year diet data from Bonneville cutthroat
Adam J Sepulveda
doaj   +1 more source

Checklist of free-living microturbellarian flatworms (Turbellaria, Platyhelminthes) in the Suquía River Basin, Córdoba, Argentina [PDF]

Check List, 2021
Free-living microturbellarians are a part of lentic and lotic aquatic assemblages and play an important but underestimated role in aquatic ecosystems.
Mariana L. Adami, Cristina Damborenea
doaj   +3 more sources

Can aggregate quarry silt lagoons provide resources for wading birds? [PDF]

, 2017
Wading birds have declined across Europe as the intensification of lowland agriculture has resulted in the loss and degradation of wetland areas. Lowland aggregate extraction sites that incorporate areas of fine, waste sediments deposited in silt lagoons
Day, George, Hull, Susan L., Mayes, William M., Wheeler, Philip M.   +3 more
core   +2 more sources