Results 31 to 40 of about 2,934 (222)

Enhanced rates of particulate organic matter remineralization by microzooplankton are diminished by added ballast minerals [PDF]

open access: yes, 2013
To examine the potentially competing influences of microzooplankton and calcite mineral ballast on organic matter remineralization, we incubated diatoms in darkness in rolling tanks with and without added calcite minerals (coccoliths) and ...
Le Moigne, F.A.C.   +15 more
core   +1 more source

Protistan Communities Within the Galápagos Archipelago With an Emphasis on Micrograzers

open access: yesFrontiers in Marine Science, 2022
The Galápagos Archipelago is a globally significant biodiversity hotspot. However, compared to the relatively well-known megafauna, the distribution and ecological significance of marine protists in this system are poorly understood.
Se Hyeon Jang   +6 more
doaj   +1 more source

Tintinnid ciliates of Amundsen Sea (Antarctica) plankton communities [PDF]

open access: yesPolar Research, 2013
The Amundsen Sea has been described as one of the most productive and dynamic pelagic systems in Antarctica and is one of the least studied. Based on samples from 15 stations in the Amundsen Sea, we describe for the first time the composition of the ...
John R. Dolan   +3 more
doaj   +1 more source

Hydrographic Feature Variation Caused Pronounced Differences in Planktonic Ciliate Community in the Pacific Arctic Region in the Summer of 2016 and 2019

open access: yesFrontiers in Microbiology, 2022
Planktonic ciliates are an important component of microzooplankton, but there is limited understanding of their responses to changing environmental conditions in the Pacific Arctic Region. We investigated the variations of ciliate community structure and
Chaofeng Wang   +15 more
doaj   +1 more source

Feeding rates of macro‐ and microzooplankton on heterotrophic nanoflagellates [PDF]

open access: yesLimnology and Oceanography, 1996
Thirteen metazooplankton and three ciliate species were examined for their ability to prey on heterotrophic nanoflagellates (HNF). Grazing losses of two species of HNF, Bodo saltans (kinetoplastid) and Spumella sp. (chrysomonad), were estimated in batch experiments by the disappearance of HNF in the presence or absence of predators.
Jürgens, K.   +3 more
openaire   +2 more sources

Microzooplankton Distribution and Dynamics in the Eastern Fram Strait and the Arctic Ocean in May and August 2014

open access: yesFrontiers in Marine Science, 2019
Microzooplankton community structure, distribution, growth, and herbivory were examined in the eastern Fram Strait and Arctic Ocean shelf affected by the Atlantic water inflow in May (during the spring bloom) and August (post-bloom, summer stratification)
Peter J. Lavrentyev   +3 more
doaj   +1 more source

Thermal Acclimation and Adaptation in Marine Protozooplankton and Mixoplankton

open access: yesFrontiers in Microbiology, 2022
Proper thermal adaptation is key to understanding how species respond to long-term changes in temperature. However, this is seldom considered in protozooplankton and mixoplankton experiments. In this work, we studied how two heterotrophic dinoflagellates
Albert Calbet, Enric Saiz
doaj   +1 more source

Killing the predator: impacts of highest-predator mortality on the global-ocean ecosystem structure [PDF]

open access: yesBiogeosciences
Recent meta-analyses suggest that microzooplankton biomass density scales linearly with phytoplankton biomass density, suggesting a simple, general rule may underpin trophic structure in the global ocean.
D. Talmy   +4 more
doaj   +1 more source

High Dynamics of Ciliate Community Revealed via Short-Term, High-Frequency Sampling in a Subtropical Estuarine Ecosystem

open access: yesFrontiers in Microbiology, 2022
Ciliates are pivotal components of the marine microbial food web, exerting profound impacts on oceanic biogeochemical cycling. However, the temporal dynamics of ciliate assemblages on a short time scale in the highly fluctuating estuarine ecosystem ...
Bowei Gu   +21 more
doaj   +1 more source

Grazing mortality as a controlling factor in the uncultured non-cyanobacterial diazotroph (Gamma A) around the Kuroshio region [PDF]

open access: yesBiogeosciences
Nitrogen-fixing microorganisms (diazotrophs) significantly influence marine productivity by reducing nitrogen gas into bioavailable nitrogen. Recently, non-cyanobacterial diazotrophs (NCDs) have been identified as important contributors to marine ...
T. Sato   +9 more
doaj   +1 more source

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