Results 21 to 30 of about 8,254 (223)

Disentangling niche competition from grazing mortality in phytoplankton dilution experiments. [PDF]

open access: yesPLoS ONE, 2017
The dilution method is the principal tool used to infer in situ microzooplankton grazing rates. However, grazing is the only mortality process considered in the theoretical model underlying the interpretation of dilution method experiments.
Stephen J Beckett, Joshua S Weitz
doaj   +1 more source

Planktonic foraminiferal assemblages reflect warming during two recent mid-latitude marine heatwaves

open access: yesFrontiers in Marine Science, 2023
Under future climate scenarios, ocean temperatures that are presently extreme and qualify as marine heatwaves (MHW) are forecasted to increase in frequency and intensity, but little is known about the impact of these events on one of the most common ...
M. Kelsey Lane   +7 more
doaj   +1 more source

Microzooplankton regulation of surface ocean POC:PON ratios [PDF]

open access: yesGlobal Biogeochemical Cycles, 2016
AbstractThe elemental composition of particulate organic matter in the surface ocean significantly affects the efficiency of the ocean's store of carbon. Though the elemental composition of primary producers is an important factor, recent observations from the western North Atlantic Ocean revealed that carbon‐to‐nitrogen ratios (C:N) of phytoplankton ...
Talmy, D.   +4 more
openaire   +4 more sources

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

open access: yes, 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   +5 more
core   +1 more source

Saturation Approach to Determine Grazing Mortality in Picoeukaryote and Synechococcus Populations

open access: yesFrontiers in Marine Science, 2022
A substantial component of phytoplankton production in the oceans is channeled through protistan grazers but understanding what dictates the magnitude of this process on a regional and temporal basis is limited, in part, by a shortage of experimental ...
Stephen D. Archer   +11 more
doaj   +1 more source

Linking long-term changes of the zooplankton community to the environmental variability at the EPEA Station (Southwestern Atlantic Ocean)

open access: yesMarine and Fishery Sciences, 2021
A significant sea surface temperature increase has been reported for the Southwestern Atlantic Ocean between 20° S-50° S over the last decades. Zooplankton organisms are highly sensitive to temperature rise.
María Delia Viñas   +2 more
doaj   +1 more source

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

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

Organization of planktonic Tintinnina assemblages in the Atlantic Ocean

open access: yesFrontiers in Marine Science, 2023
Marine plankton have different biogeographical distribution patterns. However, it is not clear how the entire plankton assemblage is composed of these species with distinct biogeographical patterns.
Haibo Li   +23 more
doaj   +1 more source

Integrating functional diversity, food web processes, and biogeochemical carbon fluxes into a conceptual approach for modeling the upper ocean in a high-CO2 world [PDF]

open access: yes, 2005
Marine food webs influence climate by channeling carbon below the permanent pycnocline, where it can be sequestered. Because most of the organic matter exported from the euphotic zone is remineralized within the "upper ocean" (i.e., the water column ...
Legendre, Louis, Rivkin, Richard B.
core   +1 more source

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