Results 21 to 30 of about 1,067 (179)

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

Influence of the Calcium Carbonate Shell of Coccolithophores on Ingestion and Growth of a Dinoflagellate Predator

open access: yesFrontiers in Marine Science, 2021
Coccolithophores are an important group of ∼200 marine phytoplankton species which cover themselves with a calcium carbonate shell called “coccosphere.” Coccolithophores are ecologically and biogeochemically important but the reason why they calcify ...
Mathias Haunost   +4 more
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

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

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

Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study.

open access: yesPLoS ONE, 2016
Ocean acidification is considered as a crucial stressor for marine communities. In this study, we tested the effects of the IPCC RPC6.0 end-of-century acidification scenario on a natural plankton community in the Gullmar Fjord, Sweden, during a long-term
Henriette G Horn   +8 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

Microbial plankton communities in the coastal southeastern Black Sea: biomass, composition and trophic interactions

open access: yesOceanologia, 2018
Summary: We investigated biomass and composition of the pico-, nano- and microplankton communities in a coastal station of the southeastern Black Sea during 2011.
Ulgen Aytan   +4 more
doaj   +1 more source

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