Results 101 to 110 of about 23,981 (275)

Sediment Vulnerability Ranking for River Basins Across the Contiguous U.S. Using Integrated Biophysical and Social‐Ecological Data

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 5, October 2026.
ABSTRACT Nearly half of streams and rivers in the United States (U.S.) have fair to poor conditions for aquatic ecosystem health as declared by the U.S. Environmental Protection Agency, and sediment was identified as a primary factor impairing these waterbodies.
Nicholas A. Sutfin, Allen C. Gellis, Nancy Baker, Christopher H. Conaway, Katherine J. Skalak   +4 more
wiley   +1 more source

Habitat and spatial trends of U.K. wintering waterbird populations over 50 years

Conservation Biology, Volume 40, Issue 5, October 2026.
Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay, Philipp H. Boersch‐Supan, James W. Pearce‐Higgins, Graham E. Austin, Niall H. K. Burton, David Noble, Kirsi Peck, Simon R. Wotton, Teresa M. Frost   +8 more
wiley   +1 more source

Tapeworm Parasite Burden Is Linked to Diet, Body Size, Condition, Growth, Restocking and Habitat Use in Piscivorous Salmonids of a Subarctic Lake

Ecology of Freshwater Fish, Volume 35, Issue 4, October 2026.
ABSTRACT Parasites affect hosts in interaction with the entire ecological community. This is particularly evident for trophically transmitted parasites, such as Dibothriocephalus tapeworms, which infect multiple intermediate fish hosts, potentially reducing their fitness and suitability for human consumption.
Topi K. Lehtonen, Nico Alioravainen
wiley   +1 more source

Impacts of stream riparian buffer land use on water temperature and food availability for fish

Journal of Freshwater Ecology, 2018
Restoration of degraded freshwater ecosystems has gained considerable attention in the USA over the past decades. However, most projects focus almost entirely on the restoration of physical habitat or specific water quality parameters, while ignoring ...
Lindsey K. Albertson, Valerie Ouellet, Melinda D. Daniels   +2 more
doaj   +1 more source

Aquatic macroinvertebrates

Atzavara, L', 2015
Despite covering only 0.8% of the Earth’s surface, freshwater biodiversity accounts for 9.5% of all described species. Aquatic macroinvertebrates, and in particular aquatic insects, are one of the most diverse faunal groups of fluvial ecosystems. Macroinvertebates are benthic invertebrates measuring more than 0.25 mm in size with a wide variety of ...
openaire   +1 more source

Integrating Acoustic Telemetry and Stable Isotope Data Reveals Overlap in Resource Use by Large‐Bodied Fishes in a Temperate Lake

Ecology of Freshwater Fish, Volume 35, Issue 4, October 2026.
ABSTRACT Temperate lake ecosystems undergo seasonal shifts that disproportionately alter the availability of suitable habitat for fishes of different thermal guilds. While many studies have investigated fish habitat use patterns, few have estimated the degree to which fish species overlap in space across seasons from a three‐dimensional perspective ...
Ian A. Richter, Alyssa M. Andersen, Karen E. Smokorowski, Paul J. Blanchfield   +3 more
wiley   +1 more source

Fragmentation by Dams and Habitat Quality Affect Body Condition of a Small Characid in a Neotropical System

Ecology of Freshwater Fish, Volume 35, Issue 4, October 2026.
ABSTRACT The structure of stream networks naturally fragments freshwater habitats, but this complexity is increasingly intensified by dams and reservoirs. How anthropogenic fragmentation interacts with natural isolation gradients to affect fish populations remains poorly understood.
Ana Carolina Daldegan, Yan F. F. Soares, Paulo Vitor Rabelo, Vinicius Urbano, Bruno E. Soares, Juan P. Quimbayo, Laura B. Paula‐Souza, Carmino Emidio Junior, Amanda S. Vasconcelos, Débora L. Ferreira, Veronica Slobodian, Eduardo Bessa, Murilo S. Dias   +12 more
wiley   +1 more source

Indicative ecological status assessment of the Despotovica river [PDF]

Kragujevac Journal of Science, 2018
The investigation of the Despotovica River was carried out in April 2017 with the aim to provide an indicative ecological status assessment. Phytobenthos and aquatic macroinvertebrate communities were followed as well as physico-chemical parameters of ...
Simić Snežana B., Petrović Ana S., Đorđević Nevena B., Vasiljević Božica M., Radojković Nataša M., Mitrović Aleksandra B., Janković Milutin G.   +6 more
doaj  

Do lake littoral benthic invertebrates respond differently to eutrophication, hydromorphological alteration, land use and fish stocking?

Knowledge and Management of Aquatic Ecosystems, 2016
In order to provide adequate guidelines in freshwater management, managers need reliable bioindicators that can respond differently to varied stressors. Managers also have to consider hierarchical structure of environmental factors.
Šiling Rebeka, Urbanič Gorazd
doaj   +1 more source

Native and Invasive Crayfish Species Impact on the Development of Fire Salamander Larvae: A Pilot Field Study From Northern Italy

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 9, September 2026.
ABSTRACT In northern Italy, the ongoing spread of non‐native red‐swamp crayfish Procambarus clarkii keeps indirectly decimating native populations of white‐clawed crayfish Austropotamobius pallipes complex and is now also threatening local amphibians adapted to slow‐flowing, hilly streams at the borders of its distribution.
Valeria Messina, Angelica Lozza, Pierluigi Mario Borzoni, Raoul Manenti   +3 more
wiley   +1 more source