Results 41 to 50 of about 9,625 (223)

Seasonal variability and vertical distribution of autotrophic and heterotrophic picoplankton in the Central Red Sea [PDF]

open access: yesPeerJ, 2020
The Red Sea is characterized by higher temperatures and salinities than other oligotrophic tropical regions. Here, we investigated the vertical and seasonal variations in the abundance and biomass of autotrophic and heterotrophic picoplankton. Using flow
Najwa Al-Otaibi   +4 more
doaj   +2 more sources

Contribution of picoplankton to the total particulate organic carbon concentration in the eastern South Pacific [PDF]

open access: yes, 2007
International audienceProchlorococcus, Synechococcus, picophytoeukaryotes and bacterioplankton abundances and contributions to the total particulate organic carbon concentration, derived from the total particle beam attenuation coefficient (cp), were ...
Alarcón, G.   +5 more
core   +2 more sources

Allelopathic and Bloom-Forming Picocyanobacteria in a Changing World

open access: yesToxins, 2018
Picocyanobacteria are extremely important organisms in the world’s oceans and freshwater ecosystems. They play an essential role in primary production and their domination in phytoplankton biomass is common in both oligotrophic and eutrophic waters ...
Sylwia Śliwińska-Wilczewska   +3 more
doaj   +1 more source

Exploring nucleo-cytoplasmic large DNA viruses in Tara Oceans microbial metagenomes [PDF]

open access: yes, 2013
Nucleo-cytoplasmic large DNA viruses (NCLDVs) constitute a group of eukaryotic viruses that can have crucial ecological roles in the sea by accelerating the turnover of their unicellular hosts or by causing diseases in animals. To better characterize the
Acinas, Silvia G.   +27 more
core   +1 more source

Synoptic relationships between surface Chlorophyll-a and diagnostic pigments specific to phytoplankton functional types [PDF]

open access: yes, 2011
Error-quantified, synoptic-scale relationships between chlorophyll-a (Chl-a) and phytoplankton pigment groups at the sea surface are presented. A total of ten pigment groups were considered to represent three Phytoplankton Size Classes (PSCs, micro ...
E. Howell   +10 more
core   +4 more sources

Spatial variation of picoplankton communities along a cascade reservoir system in Patagonia, Argentina

open access: yesJournal of Limnology, 2021
In this study we explored how picoplankton community structure and diversity varied along three cascade oligo-mesotrophic reservoirs of the Limay River (Patagonia, Argentina): Alicura, Piedra del Águila and Ramos Mexía.
M. Carolina Bernal   +8 more
doaj   +1 more source

Anthropogenic shift of planktonic food web structure in a coastal lagoon by freshwater flow regulation [PDF]

open access: yes, 2017
This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the ...
Hemraj, Deevesh A   +4 more
core   +2 more sources

Picophytoplankton biomass distribution in the global ocean [PDF]

open access: yes, 2012
The smallest marine phytoplankton, collectively termed picophytoplankton, have been routinely enumerated by flow cytometry since the late 1980s during cruises throughout most of the world ocean. We compiled a database of 40 946 data points, with separate
Buitenhuis, ET   +14 more
core   +6 more sources

Temporal patterns of picoplankton abundance and metabolism on the western coast of the equatorial Atlantic Ocean

open access: yesOcean and Coastal Research
Picoplankton are central global carbon (C) cycling players and often dominate the ocean plankton communities, especially in low latitudes. Therefore, evaluating picoplankton temporal dynamics is critical to understanding microbial stocks and C fluxes in
Maiara Menezes   +8 more
doaj   +1 more source

The top layers of water bodies, a most important although relatively neglected piece of the biosphere plumbing

open access: yesScientia Marina, 2001
Reducing power from light is used by plant life in ways that shift along ecological succession. When nutrients are non limiting, growth prevails; when essential nutrients (in the first place P) become scarce, reducing power is applied somehow and ...
Ramón Margalef
doaj   +1 more source

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