Combined impacts of ocean acidification and dysoxia on survival and growth of four agglutinating foraminifera
| Autor: | Joan M. Bernhard, Johannes C. Wit, Gernot Nehrke, Gert-Jan Reichart, Lennart J. de Nooijer, Inge van Dijk |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences biology Ecology 010604 marine biology & hydrobiology Fauna Paleontology Sediment Ocean acidification biology.organism_classification 01 natural sciences Microbiology Substrate (marine biology) pCO2 Foraminifera Textularia 13. Climate action Abundance (ecology) 14. Life underwater 0105 earth and related environmental sciences |
| Zdroj: | Scopus-Elsevier |
| Popis: | Agglutinated foraminifera create a shell by assembling particles from the sediment and comprise a significant part of the foraminiferal fauna. Despite their high abundance and diversity, their response to environmental perturbations and climate change is relatively poorly studied. Here we present results from a culture experiment with four different species of agglutinating foraminifera incubated in artificial substrate and exposed to different pCO2 conditions, in either dysoxic or oxic settings. We observed species-specific reactions (i.e., reduced or increased chamber formation rates) to dysoxia and/or acidification. While chamber addition and/or survival rates of Miliammina fusca and Trochammina inflata were negatively impacted by either dysoxia or acidification, respectively, Textularia tenuissima and Spiroplectammina biformis had the highest survivorship and chamber addition rates with combined high pCO2 (2000 ppm) and low O2 (0.7 ml/l) conditions. The differential response of these species indicates that not all agglutinating foraminifera are well-adapted to conditions induced by predicted climate change, which may result in a shift in foraminiferal community composition. |
| Databáze: | OpenAIRE |
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