Results 191 to 200 of about 258,047 (403)
Abstract Streams naturally receive allochthonous particulate organic materials, but human activity may contribute additional plastic litter inputs, which can affect ecosystem functioning. Our objective was to assess the effect of plastic and bioplastic inputs on microbial biomass and function in a pristine mountain stream.
Mar Oliva‐Albert+13 more
wiley +1 more source
Determination of water quality in lakes by biological indices [PDF]
Some problems of evaluation of water quality by biological indices which can be applied in the practice of ecological monitoring on water bodies are considered in this report.
Nikolaev, I.I.
core
Abstract Regulation and water extraction change flow regimes in lowland rivers, affecting ecosystem functions and wetting patterns of riverbanks. River connectivity to lateral environments is crucial for organic matter cycling and the life cycles of diapausing microinvertebrates. While extreme hydraulic periods (floods and cease‐flow) are well‐studied,
James N. Hitchcock+5 more
wiley +1 more source
Abstract Our understanding of marine ecosystems and ability to manage them sustainably has come from multidisciplinary observations made repeatedly over long periods of time. These long‐term ecosystem observations depend on the capabilities of large research vessels, which play an essential role in the collection of global ocean observations.
Erin V. Satterthwaite+14 more
wiley +1 more source
Versuche zur Methode des Zentrifugierens bei der Gewinnung des Planktons [PDF]
A. Pascher
openalex +1 more source
Blooms of filamentous cyanobacteria reduce zooplankton quality and pelagic food web efficiency
Abstract Cyanobacterial blooms in marine and freshwater ecosystems have increased in magnitude, frequency, and distribution worldwide during recent decades. Filamentous cyanobacteria are of unsuitable size for mesozooplankton feeding and of poorer nutritional quality than other phytoplankton taxa. The production and quality of higher trophic levels are
Tharindu Bandara+10 more
wiley +1 more source
Abstract Continued human activity is expected to accelerate ocean deoxygenation, leading to the expansion and shallowing of oxygen‐deficient zones (ODZs). This decline in oxygen may impact both phytoplankton growth and trace metal uptake. We conducted culture experiments with Prochlorococcus MIT9313 and Synechococcus XM‐24, two numerically dominant ...
Joan De Vera+7 more
wiley +1 more source