Results 61 to 70 of about 3,013 (203)

Evaluation of the potential of Pontederia parviflora Alexander in the absorption of copper (Cu) and its effects on tissues - doi: 10.4025/actascibiolsci.v32i3.3940

open access: yesActa Scientiarum: Biological Sciences, 2010
The study sought to evaluate the potential of the aquatic macrophyte Pontederia parviflora Alexander in the absorption of copper (Cu) and possible variations in its tissues after 21 days of exposure to this metal.
Graziela Custodio Balassa   +2 more
doaj   +1 more source

Modelling relationships between juvenile brown trout (Salmo trutta L.) density and landscape characteristics: Integration of electrofishing data and spatial data to assess population status

open access: yesJournal of Fish Biology, EarlyView.
Abstract Brown trout (Salmo trutta L.) are ecologically and economically important, but like many salmonids their populations are declining. Trout exhibit a high level of phenotypic plasticity, ranging from freshwater residency to anadromy. This complexity causes problems for assessment and constrains application of adult catch‐based assessment methods
Faye L. Jackson   +3 more
wiley   +1 more source

Restoration and rehabilitation of floodplain wetlands: a systematic, global review of restoration options and their outcomes

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Floodplain wetlands are vitally important, highly productive, and biodiverse ecosystems. Species dependent on them are facing a range of threats including water extraction, habitat degradation, invasive species, and shifting climates.
Sally Maxwell   +4 more
wiley   +1 more source

The Future of Freshwater Macrophytes in a Changing World: Dissolved Organic Carbon Quantity and Quality and Its Interactions With Macrophytes

open access: yesFrontiers in Plant Science, 2018
Freshwater ecosystems are confronted with the effects of climate change. One of the major changes is an increased concentration of aquatic carbon. Macrophytes are important in the aquatic carbon cycle and play as primary producers a crucial role in ...
Rosanne E. Reitsema   +2 more
doaj   +1 more source

Changes in food‐web pathways and ecosystem functions after sidearm re‐connection in a large river (Danube, Austria)

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction River regulation schemes generally led to changes in riverine assemblage composition and their trophic status, which often is reflected in a general loss or decrease of characteristic species and a concomitant increase or dominance of generalist species.
Hubert Keckeis   +7 more
wiley   +1 more source

Downstream Effects of a Hydroelectric Reservoir on Aquatic Plant Assemblages

open access: yesThe Scientific World Journal, 2002
Macrophytes were studied downstream of the Rophémel hydroelectric dam on the River Rance (Côtes d’Armor Department, western France) to assess the effects of hydroelectric functioning on river macrophyte communities. We studied ten representative sections
Ivan Bernez   +2 more
doaj   +1 more source

Early results and lessons learned from biomanipulation and chemical restoration of a eutrophic shallow lake

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Over 44% of European lakes fail to meet ecological quality standards, prompting substantial investment in lake restoration to achieve good ecological status. Unfortunately, effects are often short‐lived due to persistent internal phosphorus (P) loading and strong cyprinid‐driven bottom‐up control, which limits water quality ...
Emma Polauke   +3 more
wiley   +1 more source

Macrophyte dynamics in Mediterranean rivers: a first insight from the upper Oum Er-Rbia Basin (Middle Atlas, Morocco)

open access: yesJournal of Freshwater Ecology
Macrophyte dynamics in rivers are expressed through spatiotemporal gradients that reflect the functioning of freshwater ecosystems. In Mediterranean rivers, characterized by irregular low-flow periods and sudden floods, these gradients strongly influence
Ayoub Nouri   +4 more
doaj   +1 more source

Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling

open access: yesInternational Review of Hydrobiology, Volume 111, Issue 2, December 2026.
ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira   +24 more
wiley   +1 more source

Blue Light Enhances Cadmium Tolerance of the Aquatic Macrophyte Potamogeton crispus. [PDF]

open access: yesPlants (Basel), 2023
Wang S   +5 more
europepmc   +1 more source

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