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Early reproductive ...
Early reproductive stages in the crustose coralline alga Phymatolithon lenormandii are strongly affected by mild ocean acidification.
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Bradassi, F (author)
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Cumani, F (author)
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Bressan, G (author)
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- Dupont, Samuel, 1971 (author)
- Gothenburg University,Göteborgs universitet,Linnécentrum för marin evolutionsbiologi (CEMEB),Institutionen för biologi och miljövetenskap,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Biological and Environmental Sciences
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(creator_code:org_t)
- 2013-05-29
- 2013
- English.
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In: Marine Biology. - : Springer Science and Business Media LLC. - 0025-3162 .- 1432-1793. ; 160:8, s. 2261-2269
- Related links:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
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- Coralline algae (Corallinales, Rhodophyta) are predicted to be negatively impacted by near-future ocean acidification. The effect of low pH/high pCO2 on early life stages of Phymatolithon lenormandii (Areschoug) Adey was studied in a perturbation experiment. Several parameters including mortality, calcification (calcein staining) and development (growth and abnormalities) have been monitored for a month under experimental conditions ranging from pHT = 8.00 (pCO2 = 398 μatm) and pHT = 7.55 (pCO2 = 1,261 μatm). Our results demonstrate that survival and development of P. lenormandii early life stages can be impacted by small pH changes (ΔpH < −0.1 pH unit). A negative impact of decreasing pH was observed including an increased mortality and a higher rate of abnormalities. Growth and calcification were still observed at the lowest pH (ΔpH = −0.45). Growth rate was similar at all tested pH, but the maintenance of the skeleton under low pH was only possible through a persistent dynamic dissolution/calcification process, an energetically costly mechanism potentially draining resources from other vital processes.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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