Results 191 to 200 of about 258,047 (403)

Microbial colonization and function of biofilms developing on plastics and bioplastics in a pristine mountain stream ecosystem

open access: yesLimnology and Oceanography, EarlyView.
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]

open access: yes, 1980
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  

ON DESMID PLANKTON [PDF]

open access: bronze, 1928
Benjamin Millard Griffiths
openalex   +1 more source

Inundation of different river bank heights influences organic matter concentrations and zooplankton abundance

open access: yesLimnology and Oceanography, EarlyView.
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

The essential role of large research vessels in marine ecosystem observations and ocean sustainability

open access: yesLimnology and Oceanography, EarlyView.
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

Blooms of filamentous cyanobacteria reduce zooplankton quality and pelagic food web efficiency

open access: yesLimnology and Oceanography, EarlyView.
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

A low oxygen threshold for physiological responses and trace metal quotas of Prochlorococcus and Synechococcus

open access: yesLimnology and Oceanography, EarlyView.
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

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