Results 11 to 20 of about 3,601 (218)

Microzooplankton production in the oceans [PDF]

open access: yesICES Journal of Marine Science, 2004
Abstract A literature synthesis of phytoplankton growth (μ) and grazing (m) rate estimates from dilution experiments reveals that microzooplankton account for most phytoplankton mortality in the oceans, averaging 60–75% of daily phytoplankton production (PP) across a spectrum of open-ocean and coastal systems. For reasonable estimates of
Landry, Mr, Calbet, A
core   +4 more sources

The Possession of Coccoliths Fails to Deter Microzooplankton Grazers [PDF]

open access: yesFrontiers in Marine Science, 2020
Phytoplankton play a central role in the regulation of global carbon and nutrient cycles, forming the basis of the marine food webs. A group of biogeochemically important phytoplankton, the coccolithophores, produce calcium carbonate scales that have ...
Kyle M. J. Mayers   +14 more
doaj   +7 more sources

Biogeochemical fluxes through microzooplankton

open access: yesGlobal Biogeochemical Cycles, 2010
Microzooplankton ingest a significant fraction of primary production in the ocean and thus remineralize nutrients and stimulate regenerated primary production. We synthesized observations on microzooplankton carbon‐specific grazing rate, partitioning of grazed material, respiration rate, microzooplankton biomass, microzooplankton‐mediated phytoplankton
Buitenhuis, Erik T.   +3 more
openaire   +4 more sources

Microzooplankton grazing in the gulf of california

open access: yesCiencias Marinas, 2001
Microzooplankton (organisms < 200 μm) grazing rates were determined using the dilution technique at nine stations in the central region of the Gulf of California and one in the sill of the Guaymas Basin, during spring, summer, and autumn 1995.
J García-Pámanes, JR Lara-Lara
doaj   +3 more sources

ECOLOGY AND DIVERSITY OF MARINE MICROZOOPLANKTON [PDF]

open access: yes, 2017
Protists are a taxonomic group of organisms world wild distributed with high abundance and biodiversity; their countless forms, sizes, and trophic activities constitute a continuum of species ranging from bacterial-sized cells for the smallest known species of chlorophytes to meters in length for the largest colonies of radiolaria.
DIOCIAIUTI, TOMMASO
openaire   +2 more sources

Grazing impact of microzooplankton upon phytoplankton [PDF]

open access: yes, 2009
Alterations of freshwater flow regimes and increasing eutrophication can lead to alterations in phytoplankton biomass, composition, and growth in estuaries and adjacent coastal waters. Since phytoplankton is the first trophic level of most aquatic foodwebs, these changes can be propagated to other biological compartments, eventually impacting water ...
Barbosa, Ana B., Domingues, Rita B.
core   +3 more sources

Grazing on Pfiesteria piscicida by microzooplankton [PDF]

open access: yesAquatic Microbial Ecology, 2000
The potential grazing pressure of natural assemblages of microzooplankton ( 2 d -1 in 6 out of 10 experiments. In previous studies, the maximum instantaneous rate of growth of NTZ was
DK Stoecker, K Stevens, DE Gustafson
openaire   +1 more source

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

Seasonal and spatial comparisons of phytoplankton growth and mortality rates due to microzooplankton grazing in the northern South China Sea [PDF]

open access: yesBiogeosciences, 2013
We conducted a comprehensive investigation on the microzooplankton herbivory effect on phytoplankton in the northern South China Sea (SCS) using the seawater dilution technique at surface and deep chlorophyll maximum (DCM) layers on two cruises (July ...
B. Chen   +4 more
doaj   +1 more source

Summertime tintinnids in surface water of the Weddell and Cosmonaut seas: community structure and relationships with different water masses

open access: yesPolar Research, 2023
Tintinnids (Ciliophora) are important microzooplankton grazers. In the Southern Ocean, they are found in the Antarctic Zone, Polar Front and Subantarctic Zone.
Jingyuan Li   +6 more
doaj   +1 more source

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