Ayumi Maeda
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View article: Dinoflagellate diversity of large benthic foraminifera in harsh shallow-water environments
Dinoflagellate diversity of large benthic foraminifera in harsh shallow-water environments Open
Symbiotic relationships between dinoflagellates of the family Symbiodiniaceae and other marine organisms support coral reef ecosystems. Reef-dwelling, large, benthic foraminifers contribute to reef substrate formation. Although foraminifer…
View article: Diversity, composition and potential roles of sedimentary microbial communities in different coastal substrates around subtropical Okinawa Island, Japan
Diversity, composition and potential roles of sedimentary microbial communities in different coastal substrates around subtropical Okinawa Island, Japan Open
Background Marine benthic prokaryotic communities play crucial roles in material recycling within coastal environments, including coral reefs. Coastal sedimentary microbiomes are particularly important as potential reservoirs of symbiotic,…
View article: Environmental DNA metabarcoding of foraminifera for biological monitoring of bottom water and sediments on the Takuyo-Daigo Seamount in the northwestern Pacific
Environmental DNA metabarcoding of foraminifera for biological monitoring of bottom water and sediments on the Takuyo-Daigo Seamount in the northwestern Pacific Open
Foraminifera are adapted to a wide range of environments, and environmental DNA (eDNA) metabarcoding of foraminifera should facilitate development of new environmental indicators. In this study, we used eDNA metabarcoding to evaluate the d…
View article: Calcification depths of planktic foraminifers constrained by geochemical signatures from sediment-trap samples from the Bay of Bengal
Calcification depths of planktic foraminifers constrained by geochemical signatures from sediment-trap samples from the Bay of Bengal Open
The Mg/Ca and oxygen isotope ratios (δ18O) of multiple species of planktic foraminifers provide information on the hydrological conditions between the surface and the thermocline. Knowledge of the apparent calcification depth (ACD) of plan…
View article: Biomarkers in the rock outcrop of the Kazusa Group reveal palaeoenvironments of the Kuroshio region
Biomarkers in the rock outcrop of the Kazusa Group reveal palaeoenvironments of the Kuroshio region Open
Long-chain alkenones and n -alkanes preserved in marine and lake sediment cores are widely used to reconstruct palaeoenvironments. However, applying this technique to exposed sedimentary rock sequences is relatively challenging due to the …
View article: Biomarkers in the rock outcrop of the Kazusa Group reveal paleoenvironments of the Kuroshio region
Biomarkers in the rock outcrop of the Kazusa Group reveal paleoenvironments of the Kuroshio region Open
The classical biomarkers of long-chain alkenones and n-alkanes preserved in marine and lake sediment cores are widely used to reconstruct paleoenvironments. Here, we detected these biomarkers are preserved in the rock outcrop of the Kazusa…
View article: Partitioning and Chemical Environments of Minor Elements in Individual Large Benthic Foraminifera Cultured in Temperature-Controlled Tanks
Partitioning and Chemical Environments of Minor Elements in Individual Large Benthic Foraminifera Cultured in Temperature-Controlled Tanks Open
Because reef-dwelling large benthic foraminifera (LBF) tests, which is composed of high-magnesium calcite, are the common components of modern reef sediments, and ancient reef carbonate rocks, they can provide a continuous record of the pa…
View article: Perspective on the response of marine calcifiers to global warming and ocean acidification—Behavior of corals and foraminifera in a high CO2 world “hot house”
Perspective on the response of marine calcifiers to global warming and ocean acidification—Behavior of corals and foraminifera in a high CO2 world “hot house” Open
The CO2 concentration of air has increased over the last two centuries and recently surpassed 400 ppm. Carbon cycle models project CO2 concentrations of 720 to 1000 ppm for the IPCC intermediate scenario (RCP 6.0), resulting in an increase…