Seawater carbonate chemistry and functional morphology of foraminifera

Culturing experiments were performed on sediment samples from the Ythan Estuary, N. E. Scotland, to assess the impacts of ocean acidification on test surface ornamentation in the benthic foraminifer Haynesina germanica. Specimens were cultured for 36 weeks at either 380, 750 or 1000 ppm atmospheric...

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Bibliographic Details
Main Authors: Khanna, Nikki, Godbold, Jasmin A, Austin, William EN, Paterson, David M
Format: Dataset
Language:English
Published: PANGAEA 2013
Subjects:
Alkalinity
total
Aragonite saturation state
Benthos
Bicarbonate ion
Bottles or small containers/Aquaria (<20 L)
Brackish waters
Calcification/Dissolution
Calcite saturation state
Calculated using seacarb after Nisumaa et al. (2010)
Carbon
inorganic
dissolved
Carbonate ion
Carbonate system computation flag
Carbon dioxide
EXP
Experiment
Foraminifera
Fugacity of carbon dioxide (water) at sea surface temperature (wet air)
Growth/Morphology
Haynesina germanica
Heterotrophic prokaryotes
Laboratory experiment
Length
standard deviation
North Atlantic
Number
OA-ICC
Ocean Acidification International Coordination Centre
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)
pH
Salinity
Single species
Size
Species
unique identification
Temperate
Temperature
water
Type
Width
Ythan_Estuary
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.951205
https://doi.org/10.1594/PANGAEA.951205
Description
Summary:Culturing experiments were performed on sediment samples from the Ythan Estuary, N. E. Scotland, to assess the impacts of ocean acidification on test surface ornamentation in the benthic foraminifer Haynesina germanica. Specimens were cultured for 36 weeks at either 380, 750 or 1000 ppm atmospheric CO2. Analysis of the test surface using SEM imaging reveals sensitivity of functionally important ornamentation associated with feeding to changing seawater CO2 levels. Specimens incubated at high CO2 levels displayed evidence of shell dissolution, a significant reduction and deformation of ornamentation. It is clear that these calcifying organisms are likely to be vulnerable to ocean acidification. A reduction in functionally important ornamentation could lead to a reduction in feeding efficiency with consequent impacts on this organism's survival and fitness.

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