Results 71 to 80 of about 9,625 (223)

Distribution du picoplancton autotrophe dans la zone pélagique d'un lac méromictique (Lac Czane, Pologne) [PDF]

open access: yes, 2005
La composition, l'abondance et la biomasse de la communauté du picoplancton autotrophe (PPA, 0,2-2 m) ont été examinées dans un lac situé en Pologne et récemment considéré comme méromictique, le lac Czarne.
Szelag-Wasielewska, E.
core   +1 more source

The Microbiology and Geochemistry of the Shallow‐Water Hydrothermal Vents of the Gulf of Naples, Italy

open access: yesEnvironmental Microbiology, Volume 28, Issue 4, April 2026.
This study investigated the interplay between fluid geochemistry and microbial diversity in the shallow‐water hydrothermal vents of the gulf of Naples, Italy. We found that hydrothermal fluid chemistry and the geological settings where the vents are hosted play a key role in shaping microbial distribution.
Bernardo Barosa   +18 more
wiley   +1 more source

Estimates of particulate organic carbon flowing from the pelagic environment to the benthos through sponge assemblages. [PDF]

open access: yesPLoS ONE, 2012
Despite the importance of trophic interactions between organisms, and the relationship between primary production and benthic diversity, there have been few studies that have quantified the carbon flow from pelagic to benthic environments as a result of ...
Alejandra Perea-Blázquez   +2 more
doaj   +1 more source

Microcystins in components of twelve New Hampshire lakes of varied trophic status [PDF]

open access: yes, 1999
Cyanobacteria toxins, called microcystins (MCs), were found in components of twelve, stratified New Hampshire (USA) lakes of varied trophic status during the summer of 1998.
Johnson, Kimberly M.
core   +1 more source

Aerosol‐nutrient‐induced picoplankton growth in Lake Tahoe [PDF]

open access: yesJournal of Geophysical Research: Biogeosciences, 2013
AbstractLake Tahoe is an oligotrophic lake appreciated for its transparent waters, yet the Lake's clarity has been declining for several decades due in part to eutrophication. At the same time, a shift from nitrogen (N) toward phosphorus (P) limitation of phytoplankton has occurred that could be due to atmospheric deposition of nutrients with high N:P ...
Mackey, Katherine R. M   +9 more
openaire   +3 more sources

Picoplankton community structure before, during and after convection event in the offshore waters of the Southern Adriatic Sea [PDF]

open access: yesBiogeosciences, 2014
This paper documents the picoplankton community's response to changes in oceanographic conditions in the period between October 2011 and September 2012 at two stations belonging to the South Adriatic Pit (SAP).
M. Najdek   +13 more
doaj   +1 more source

Phytoplankton Biomass and Growth Limitation During Fifty Years of Reduced Nutrient Loading in Shallow Lake Arresø

open access: yesFreshwater Biology, Volume 71, Issue 4, April 2026.
ABSTRACT We examine phytoplankton development and limitation in the 3‐m deep, well‐mixed water column of hypereutrophic, alkaline Lake Arresø during 50 years of improved sewage treatment that has reduced phosphorus (P) and nitrogen (N) availability and phytoplankton biomass.
Kaj Sand‐Jensen   +2 more
wiley   +1 more source

Toxicity of copper in natural marine picoplankton populations

open access: yesEcotoxicology, 2009
Standard microalgae toxicity tests should be able to establish responses in real ecosystems. Natural marine picoplankton samples collected during the months of March, June, August, October 2007 and January 2008, where exposed to 72 h copper toxicity tests.
Debelius, Bibiana   +3 more
openaire   +3 more sources

Active microbiome structure and its association with environmental factors and viruses at different aquatic sites of a high‐altitude wetland

open access: yesMicrobiologyOpen, 2019
Salar de Huasco is a high‐altitude wetland characterized by a highly diverse microbial life adapted to extreme climatic and environmental conditions. Our study aims to determine active microbial community structure changes within different aquatic sites ...
Yoanna Eissler   +4 more
doaj   +1 more source

Thermal Limits and Decline of Synechococcus Under Accelerated Warming and Marine Heatwaves

open access: yesGlobal Change Biology, Volume 32, Issue 3, March 2026.
Marine picophytoplankton, including Synechococcus, contribute ~20% of ocean primary production and are considered thermally resilient. However, 7 years of observations and experiments in the Red Sea show that recent extreme warming reduced Synechococcus abundance. Seawater temperatures during marine heatwaves in 2023–2024 exceeded the thermal limits of
Luthfiyyah Azizah   +3 more
wiley   +1 more source

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