PREDATION OF MUDFLAT MEIO-MACROFAUNAL METAZOANS BY A CALCAREOUS FORAMINIFER, AMMONIA TEPIDA (CUSHMAN, 1926)

Ammonia tepida

Introduction Conclusions References Tables Figures

Bacterivory in the common foraminifer Ammonia tepida : 1 isotope tracer experiment and the controlling factors

7 The majority of sediment dweller foraminifera are deposit feeders. They use their 8 pseudopodia to gather sediment with associated algae, organic detritus and bacteria. Uptake of 9 bacteria by foraminifera have been observed but rarely quantified. We measured uptake of 10 bacteria by the common foraminifera Ammonia tepida using 15 N pre-enriched bacteria as 11 tracers. In intertidal flats, se...

Bacterivory in the common foraminifer Ammonia tepida: isotope tracer experiment and the controlling factors

7 The majority of sediment dweller foraminifera are deposit feeders. They use their 8 pseudopodia to gather sediment with associated algae, organic detritus and bacteria. Uptake of 9 bacteria by foraminifera have been observed but rarely quantified. We measured uptake of 10 bacteria by the common foraminifera Ammonia tepida using 15 N pre-enriched bacteria as 11 tracers. In intertidal flats, se...

Calcification acidifies the microenvironment of a benthic foraminifer (Ammonia sp.)

Surviving anoxia in marine sediments: The metabolic response of ubiquitous benthic foraminifera (Ammonia tepida)

High input of organic carbon and/or slowly renewing bottom waters frequently create periods with low dissolved oxygen concentrations on continental shelves and in coastal areas; such events can have strong impacts on benthic ecosystems. Among the meiofauna living in these environments, benthic foraminifera are often the most tolerant to low oxygen levels. Indeed, some species are able to surviv...