3 edition of Uptake and remineralization of ammonium by marine plankton found in the catalog.
Uptake and remineralization of ammonium by marine plankton
Written in English
|Statement||by Patricia Marguerite Glibert.|
|The Physical Object|
|Pagination||vii, 216 leaves|
|Number of Pages||216|
Published in: Journal of Experimental Marine Biology and Ecology (), vol. , iss. 1, pp. Status: Postprint (Author’s version) Contributions of benthic and planktonic primary producers to nitrate and ammonium uptake fluxes in a nutrient-poor shallow coastal area (Corsica, NW Mediterranean). ammonium uptake or regeneration would result in an apparent discrepancy between the two rates for incubations of ~24 h. An extensive study of diel pcriodicity in NH,+ uptake and regeneration was carried out in the Sargasso Sea (Glibert ). Glibert concluded that NH,+ uptake and regener-.
the elemental composition of marine plankton can vary widely (Fraga, ; Geider and Roche, ; Martiny et al., ), as does remineralization stoichiometry (Anderson and Sarmiento, ; Li and Peng, ). The N:P composition of suspended and sinking organic matter can. Many planktonic organisms have excesses of ammonium, sodium, and chloride relative to sea water because a. They must regulate ionic concentrations in estuaries b. They evolved in the deep sea and retain the chemistry of the deep sea c. These excesses are substitutions of ions of lower density, which counteracts sinking d. All of the above.
Leibniz Institute of Marine Sciences. (, November 18). Ocean Plankton Reducing Greenhouse Gases By Using More Carbon Dioxide. ScienceDaily. Retrieved from Marine Biogeochemistry, a section of the journal Frontiers in Marine Science Received March Accepted May Published May Citation: Rohde MM, Granger J, Sigman DM and Lehmann MF () Coupled nitrate N and O stable isotope fractionation by a natural marine plankton consortium. Front. Mar. Sci. doi: /fmars
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PDF | On Jan 1,P.M. Glibert and others published Isotope dilution models of uptake and remineralization of ammonium by marine plankton | Find, read and cite all the research you need on. The utility of 15 N isotope dilution models for the calculation of uptake and remineralization of NH 4 + by marine phytoplankton was examined in light of model limitations when applied to field data either when ambient NH 4 + levels border on our limit of detection or when there is no statistically significant difference between ambient NH 4 Cited by: Isotope dilution models of uptake and remineralization of ammonium by marine plankton’ Patricia M.
Glibert2 Museum of Comparative Zoology, Harvard University, Cambridge, Massachusetts Fred& Lipschultz Division of Applied Sciences, Harvard University James J. McCarthy and Mark A.
AltabetCited by: Eppley RW, Rogers JN, McCarthy JJ () Half-saturation constants for uptake of nitrate and ammonium by marine phytoplankton. Limnol Oceanogr Cited by: Ammonium uptake and growth limitation in marine phytoplankton William G.
Sunda and D. Ransom Hardison National Ocean Service, NOAA, Pivers Island Road, Beaufort, North Carolina An empirically based mathematical model is presented which can simulate the major features of the interactions between ammonium and nitrate transport and assimilation in phytoplankton.
The model (ammonium-nitrate interaction model), which is configured to simulate a generic microalga rather than a specified species, is constructed on simplified Cited by: Measurements of ammonium and nitrate uptakes by natural phytoplankton assemblages from Jiaozhou Bay at various combinations of ammonium and nitrate concentrations with15N trace techniques showed that uptake rate of either nitrogen was influenced by the presence of the other but that the influence of ammonium on nitrate uptake was much greater than that of nitrate on ammonium Cited by: 3.
Nitrate and ammonium are the most important nitrogen sources for phytoplankton growth. Differential utilization of inorganic nitrogenous compounds by phytoplankton has been observed and may have significant impacts on primary productivity at local scales.
We used enrichment experiments with natural phytoplankton populations from the freshwater tidal zone of the Guadiana estuary, a coastal Cited by: Deborah A. Bronk, Deborah K.
Steinberg, in Nitrogen in the Marine Environment (Second Edition), Inorganic. Ammonium is released during bacterial remineralization of dissolved organic matter (DOM) in the water column (e.g., Goldman et al., ) and in sediments (Chapter 19 by Joye and Anderson, this volume), is an excretory product of zooplankton (Chapter 26 by Steinberg and Saba.
Ammonium is a central nutrient in aquatic systems. Yet, cell-specific ammonium assimilation among diverse functional plankton is poorly documented in Cited by: 3. The ammonium uptake pattern was quite variable, with surface (Sta.
) or deep (Sta. ) maxima. At the southernmost station (), ammonium uptake measured under saturating substrate conditions was always lower than nitrate uptake (by a factor ofsee Fig. In offshore areas, nitrate values ranged between and by: Abstract.
The uptake rate of carbon and nitrogen (ammonium, nitrate and urea) by the Microcystis predominating among phytoplankton was investigated in the summer of in Takahamaira Bay of Lake Kasumigaura. The V max values of Microcystis for nitrate (– h −1) and ammonium (– h −1) were considerably higher than other natural by: Limnology and Oceanography: Methods; Limnology and Oceanography Bulletin; Limnology and Oceanography e-Lectures; Limnology and Oceanography Fluids and Environments.
UNESCO – EOLSS SAMPLE CHAPTERS MARINE ECOLOGY – Nitrogen Metabolism in Phytoplankton - Y. Collos, J. Berges ©Encyclopedia of Life Support Systems (EOLSS) Particulate nitrogen (PN) This class of compounds ranges from to µmolN.l-1 in oceanic waters and up to µmolN.l-1 in coastal waters, and is mainly made up of proteins (more than 70%).
Ammonium assimilation was affected via an inhibition of carbon fixation. Ammonium concentrations increased in the continuous cultures, whereas the overcapacity of ammonium uptake declined: the nitrogen limitation was relieved.
When salinity was increased again, photosynthesis and cell division were by: Ammonium regeneration by microzooplankton in the Oslofjord Ammonium regeneration by microzooplankton in the Oslofjord Paasche, E.; Kristiansen, S. Concentrations of dissolved inorganic nitrogen compounds above the pycnocline in the Oslofjord are very low in the summer, with turnover times of the inorganic N pools of no more than a few.
uptake and accumulation of radioactive zinc by marine plankton, fish, and shellfish by walter a. chipman, theodore r. rice and thomas j.
price fishery bulletin from fishery bulletin of the fish and wildlife service volume 58 united states government printing office • washington • We investigated the role of N 2-fixation by the colony-forming cyanobacterium, Aphanizomenon spp., for the plankton community and N-budget of the N-limited Baltic Sea during summeCited by: ammonium was calculated asthe difference between their initial and final values in the culture media.
The uptake rate, estimated from ammonium and nitrate consumption in culture media, as a function of nitrate and ammonium, is shown in Figures Thomas () found a Ks of ~g-at/l for ammonium. Date Published: Mar Keywords: central equatorial pacific, disequilibria, iron, marine protists, north-atlantic, ocean, organic carbon, paramecium-caudatum, recycling, regeneration, snow, surface, th, thorium, trace-metals, waters Abstract: To characterize trace metal cycling in marine systems as mediated by heterotrophic protists, we conducted a series of laboratory experiments in 2.
Kinetics of Nitrate and Ammonium Uptake by the Natural Populations of Marine Phytoplankton in the Surface Water of the Oyashio Region during Spring and Summer AKIHIRO SHIOMOTO1, KATSUYUKI SASAKI2, TORU SHIMODA2 and SATSUKI MATSUMURA1 1National Research Institute of Far Seas Fisheries,Orido 5 chome, Shimizu-shi, ShizuokaJapanCited by: Anthropogenic activities are altering total nutrient loads to many estuaries and freshwaters, resulting in high loads not only of total nitrogen (N), but in some cases, of chemica.CHLOROPHYLL 0 5 10 H 15 20 25 0 5 10 H 15 20 25 zooplankton capable of producing NH4 patches, the differ-ential affinity can perhaps best be explained by the energy.