Results 21 to 30 of about 3,601 (218)

Effects of microzooplankton on the planktonic food web

, 2015
Planktonic food web analyses have long focused on interactions between phytoplankton, copepods and fish larvae. However, heterotrophic dinoflagellates and ciliates, here defined as microzooplankton, are known to be efficient consumers of primary ...
Beckmann, Ramona
openaire   +2 more sources

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

, 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., De La Rocha, C., De La Rocha, C. L., de La Rocha, Christina, L., Le Moigne, F., M. Gallinari, Le Moigne, Frédéric A.C., Laurenceau, E., C. L. De La Rocha, Gallinari, Morgane, F. A. C. Le Moigne, Le Moigne, Frederic A. C., Le Moigne, F. A. C., E. Laurenceau, De La Rocha, C.L., Gallinari, M.   +15 more
core   +2 more sources

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

Limnology 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., Wickham, S., Rothhaupt, K., Santer, B.   +3 more
openaire   +2 more sources

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

Frontiers 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, Peter J. Lavrentyev, Gayantonia Franzè, Francisco B. Moore   +3 more
doaj   +1 more source

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

Frontiers 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, Ulf Riebesell, Francesco D’Amore, Ole Kelting, Lennart T. Bach   +4 more
doaj   +1 more source

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

Biogeosciences
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, E. Carr, H. Rajakaruna, S. Våge, A. Willem Omta   +4 more
doaj   +1 more source

Effect of large- and small- bodied zooplankton on phytoplankton in a eutrophic oxbow [PDF]

, 2005
Macrozooplankton and microzooplankton effects on the phytoplankton were measured in situ in a eutrophic lake. Indigenous phytoplankton were incubated for 5 days in 301 mesocosms with either the macro- and microzooplankton (complete), microzooplankton ...
Borbély, György, Nagy, Sándor Alex, Müller, Zoltán, Grigorszky, István, Csaba, Máthé, Tóth, Albert   +5 more
core   +1 more source

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

Biogeosciences
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, T. Sato, T. Yamaguchi, K. Hidataka, S. Sogawa, T. Setou, T. Kodama, T. Kodama, T. Shiozaki, K. Takahashi   +9 more
doaj   +1 more source

Protistan Communities Within the Galápagos Archipelago With an Emphasis on Micrograzers

Frontiers 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, Se Hyeon Jang, Prisca Lim, Olivia Torano, Erika F. Neave, Harvey Seim, Adrian Marchetti   +6 more
doaj   +1 more source

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

PLoS 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, Nils Sander, Annegret Stuhr, María Algueró-Muñiz, Lennart T Bach, Martin G J Löder, Maarten Boersma, Ulf Riebesell, Nicole Aberle   +8 more
doaj   +1 more source