Results 1 to 10 of about 103,905 (335)

Metabolic preference of nitrate over oxygen as an electron acceptor in foraminifera from the Peruvian oxygen minimum zone

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Foraminifera are able to respire nitrate instead of oxygen, a rare ability amongst eukaryotes. Here, we show that benthic foraminifera from the Peruvian oxygen minimum zone are not just facultative anaerobes by switching to nitrate ...
Nicolaas Glock   +2 more
exaly   +2 more sources

Link between light-triggered Mg-banding and chamber formation in the planktic foraminifera Neogloboquadrina dutertrei

open access: yesNature Communications, 2017
The relationship between seawater temperature and the average Mg/Ca ratios in planktic foraminifera is well established, providing an essential tool for reconstructing past ocean temperatures.
Jennifer Fehrenbacher   +2 more
exaly   +2 more sources

Planktic foraminifera form their shells via metastable carbonate phases

open access: yesNature Communications, 2017
The calcium carbonate shells of planktic foraminifera provide our most valuable geochemical archive of ocean surface conditions and climate spanning the last 100 million years, and play an important role in the ocean carbon cycle.
Dorrit E. Jacob, Oscar Branson
exaly   +2 more sources

ForCenS, a curated database of planktonic foraminifera census counts in marine surface sediment samples

open access: yesScientific Data, 2017
Census counts of marine microfossils in surface sediments represent an invaluable resource for paleoceanography and for the investigation of macroecological processes. A prerequisite for such applications is the provision of data syntheses for individual
Michael Siccha, Michal Kucera
exaly   +2 more sources

Burial-induced oxygen-isotope re-equilibration of fossil foraminifera explains ocean paleotemperature paradoxes

open access: yesNature Communications, 2017
Oxygen-isotope compositions of fossilised planktonic and benthic foraminifera tests are used as proxies for surface- and deep-ocean paleotemperatures, providing a continuous benthic record for the past 115 Ma.
Damien Daval, Anders Meibom
exaly   +2 more sources

Benthic foraminifera and gromiids from oxygen-depleted environments – survival strategies, biogeochemistry and trophic interactions

open access: yesBiogeosciences, 2023
. The oceans are losing oxygen (O2), and oxygen minimum zones are expanding due to climate warming (lower O2 solubility) and eutrophication related to agriculture.
N. Glock
semanticscholar   +1 more source

Taxonomic review of living planktonic foraminifera

open access: yesJournal of Micropalaeontology, 2022
. Applications of fossil shells of planktonic foraminifera to decipher past environmental change and plankton evolution require a robust operational taxonomy.
G. Brummer, M. Kučera
semanticscholar   +1 more source

Calcification, Dissolution and Test Properties of Modern Planktonic Foraminifera From the Central Atlantic Ocean

open access: yesFrontiers in Marine Science, 2022
The mass of well-preserved calcite in planktonic foraminifera shells provides an indication of the calcification potential of the surface ocean. Here we report the shell weight of 8 different abundant planktonic foraminifera species from a set of core-to
Stergios D. Zarkogiannis   +7 more
semanticscholar   +1 more source

Response of large benthic foraminifera to climate and local changes: Implications for future carbonate production

open access: yesSedimentology, 2021
Large benthic foraminifera are major carbonate components in tropical carbonate platforms, important carbonate producers, stratigraphic tools and powerful bioindicators (proxies) of environmental change.
G. R. Narayan   +6 more
semanticscholar   +1 more source

Denitrification by benthic foraminifera and their contribution to N-loss from a fjord environment

open access: yesBiogeosciences, 2021
. Oxygen and nitrate availabilities impact the marine nitrogen cycle at a range of spatial and temporal scales. Here, we demonstrate the impact of denitrifying foraminifera on the nitrogen cycle at two oxygen and nitrate contrasting stations in a fjord ...
Constance Choquel   +9 more
semanticscholar   +1 more source

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