Research output per year
Research output per year
Laurie M. Charrieau, Helena L. Filipsson, Yukiko Nagai, Sachiko Kawada, Karl Ljung, Emma Kritzberg, Takashi Toyofuku
Research output: Contribution to journal › Article › peer-review
Coastal areas display natural large environmental variability such as frequent changes in salinity, pH, and carbonate chemistry. Anthropogenic impacts – especially ocean acidification – increase this variability, which may affect the living conditions of coastal species, particularly, calcifiers. We performed culture experiments on living benthic foraminifera to study the combined effects of lowered pH and salinity on the calcification abilities and survival of the coastal, calcitic species Ammonia sp. and Elphidium crispum. We found that in open ocean conditions (salinity ∼35) and lower pH than usual values for these species, the specimens displayed resistance to shell (test) dissolution for a longer time than in brackish conditions (salinity ∼5 to 20). However, the response was species specific as Ammonia sp. specimens survived longer than E. crispum specimens when placed in the same conditions of salinity and pH. Living, decalcified juveniles of Ammonia sp. were observed and we show that desalination is one cause for the decalcification. Finally, we highlight the ability of foraminifera to survive under Ωcalc < 1, and that high salinity and [Ca2+] as building blocks are crucial for the foraminiferal calcification process.
Original language | English |
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Pages (from-to) | 36-45 |
Journal | Marine Environmental Research |
Volume | 138 |
Early online date | 2018 Apr 3 |
DOIs | |
Publication status | Published - 2018 |
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Filipsson, H. (Researcher)
2013/10/01 → 2017/12/15
Project: Dissertation
Filipsson, H. (First/primary/lead supervisor)
Activity: Examination and supervision › Supervision of PhD students
Filipsson, H. (Visiting researcher)
Activity: Visiting an external institution › Research or teaching at external organisation