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PLOS ONE  2013 

The Impact of Ocean Acidification on the Functional Morphology of Foraminifera

DOI: 10.1371/journal.pone.0083118

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Abstract:

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.

References

[1]  Hoegh-Guldberg O, Bruno JF (2010) The impact of climate change on the world's marine ecosystems. Science 328: 1523–1528.
[2]  Orr JC, Fabry VJ, Aumont O, Bopp L, Doney SC, et al. (2005) Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms. Nature 437: 681–686.
[3]  Caldeira K, Wickett ME (2003) Anthropogenic carbon and ocean pH. Nature 425: 325.
[4]  Doney SC, Fabry VJ, Feely RA, Kleypas JA (2009) Ocean acidification: the other CO2 problem. Ann Rev Mar Sci 1: 169–192.
[5]  Kroeker KJ, Kordas RL, Crim RN, Singh GG (2010) Meta-analysis reveals negative yet variable effects of ocean acidification on marine organisms. Ecol Lett 13: 1419–1434.
[6]  Gooding RA, Harley CDG, Tang E, Brown JH (2009) Elevated water temperature and carbon dioxide concentration increase growth of a keystone echinoderm. PNAS 106: 9316–9321.
[7]  Form AU, Reibesell U (2012) Acclimation to ocean acidification during long term CO2 exposure in the cold water coral Lophelia pertusa. Glob Change Biol 18: 843–853.
[8]  Goldstein ST (1999) Foraminifera: A Biological Overview. In: Sen Gupta BK. Modern Foraminifera. Dordrecht: Kluwer Academic Publishers. pp. 37–55.
[9]  Hansen HJ (1999) Shell construction in modern calcareous Foraminifera. In: Sen Gupta BK. Modern Foraminifera. Dordrecht: Kluwer Academic Publishers. pp. 57–70.
[10]  Moodley L, Boschker HTS, Middelburg JJ, Pel R, Hermna PMJ, et al. (2000) Ecological significance of benthic foraminifera: 13C labelling experiments. Mar Ecol Prog Ser 202: 289–295.
[11]  Murray JW (2006) Ecology and Applications of Benthic Foraminifera. Cambridge: Cambridge University Press.
[12]  Austin HA, Austin WEN, Paterson DM (2005) Extracellular cracking and content removal of the benthic diatom Pleurosigma angulatum (Quekett) by the benthic foraminifera Haynesina germanica (Ehrenberg). Mar Micropal 57: 68–73.
[13]  Marszalek DS, Wright RC, Hay WW (1969) Function of the test in foraminifera. Trans Gulf Coast Assoc Geol Soc 19: 341–352.
[14]  Murray JW (1991) Ecology and Palaeoecology of Benthic Foraminifera. Harlow: Longman.
[15]  Hallock P, R?ttger R, Wetmore K (1991) Hypotheses on form and function in foraminifera. In: Lee JJ, Anderson OR. Biology of Foraminifera. London: Academic. pp. 41–72.
[16]  Bernhard JM, Bowser SS (1999) Benthic foraminifera of dysoxic sediments: chloroplast sequestration and functional morphology. Earth Sci Rev 46: 149–165.
[17]  Loeblich AR, Tappan H (1988) Foraminiferal Genera and their Classification. New York: Van Nostrand Reinhold.
[18]  Hamm CE, Merkel R, Springer O, Jurkojc P, Maler C, et al. (2003) Architecture and material properties of diatom shells provided effective mechanical protection. Nature 421: 841–843.
[19]  Le Cadre V, Debanay JP, Lesourd M (2003) Low pH effects on Ammonia beccarii test deformation: implications for using test deformations as a pollution indicator. J Foraminiferal Res 33: 1–9.
[20]  Dissard D, Nehrke G, Reichart GJ, Bijma J (2009) Impact of seawater pCO2 changes on calcification and on Mg/Ca and Sr/Ca in benthic foraminifera calcite (Ammonia tepida): results from culturing experiments. Biogeosciences 7: 81–93.
[21]  Haynert K, Sch?nfeld J, Riebesell U, Polovodova I (2011) Biometry and dissolution features of the benthic foraminifer Ammonia aomoriensis at high pCO2. Mar Ecol Prog Ser 432: 53–67.
[22]  Godbold JA, Solan M (2013) Long-term effects of warming and ocean acidification are modified by seasonal variation in species responses and environmental conditions. Phil Trans R Soc Lond B 368: 20130186.
[23]  R Development Core Team (2012) R: a language and environment for statistical computing. Vienna, Austria. See http://www.R-project.org/.
[24]  Lee JJ (1980) Nutrition and Physiology of the Foraminifera. In: Levandowsky ML, Hunter SH. Biogeochemistry and Physiology of Protozoa. London: Academic Press. pp. 43–66.

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