Differential Responses of Calcifying and Non-Calcifying Epibionts of a Brown Macroalga to Present-Day and Future Upwelling pCO2

Saderne, Vincent; Wahl, Martin

doi:10.1371/journal.pone.0070455

Cited by 34 publications

(48 citation statements)

References 83 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous work on Baltic S. spirorbis in laboratory experiments (Saderne and Wahl, 2013) found significantly reduced growth only at pH values lower than 7.7 ( arag < 0.8). The study confirmed that the tubeworms were able to calcify in aragonite undersaturated water ( arag < 1).…”

Section: Introductionmentioning

confidence: 78%

“…2). The absolute tube length increase (mm) was measured as the length of the newly formed external arc of the tube between the staining front and the terminal tube edge, following Saderne and Wahl (2013).…”

Section: Culturingmentioning

confidence: 99%

“…Reynaud et al, 2003;Marshall and Clode, 2004;Veron et al, 2009;Saderne and Wahl, 2013;Wisshak et al, 2013;Cornwall et al, 2016;Wahl et al, 2016). However, only few studies investigated combined effects of simultaneously increased temperature and CO 2 on entire ecosystems (Wahl et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Taubner

Böhm

et al. 2018

Biogeosciences

View full text Add to dashboard Cite

Abstract. The calcareous tubeworm Spirorbis spirorbis is a widespread serpulid species in the Baltic Sea, where it commonly grows as an epibiont on brown macroalgae (genus Fucus). It lives within a Mg-calcite shell and could be affected by ocean acidification and temperature rise induced by the predicted future atmospheric CO 2 increase. However, Spirorbis tubes grow in a chemically modified boundary layer around the algae, which may mitigate acidification. In order to investigate how increasing temperature and rising pCO 2 may influence S. spirorbis shell growth we carried out four seasonal experiments in the Kiel Outdoor Benthocosms at elevated pCO 2 and temperature conditions. Compared to laboratory batch culture experiments the benthocosm approach provides a better representation of natural conditions for physical and biological ecosystem parameters, including seasonal variations. We find that growth rates of S. spirorbis are significantly controlled by ontogenetic and seasonal effects. The length of the newly grown tube is inversely related to the initial diameter of the shell. Our study showed no significant difference of the growth rates between ambient atmospheric and elevated (1100 ppm) pCO 2 conditions. No influence of daily average CaCO 3 saturation state on the growth rates of S. spirorbis was observed. We found, however, net growth of the shells even in temporarily undersaturated bulk solutions, under conditions that concurrently favoured selective shell surface dissolution. The results suggest an overall resistance of S. spirorbis growth to acidification levels predicted for the year 2100 in the Baltic Sea. In contrast, S. spirorbis did not survive at mean seasonal temperatures exceeding 24 • C during the summer experiments. In the autumn experiments at ambient pCO 2 , the growth rates of juvenile S. spirorbis were higher under elevated temperature conditions. The results reveal that S. spirorbis may prefer moderately warmer conditions during their early life stages but will suffer from an excessive temperature increase and from increasing shell corrosion as a consequence of progressing ocean acidification.

show abstract

Section: Introductionmentioning

confidence: 78%

Section: Culturingmentioning

confidence: 99%

See 1 more Smart Citation

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Taubner

Böhm

et al. 2018

Biogeosciences

View full text Add to dashboard Cite

show abstract

“…A transcriptomic analysis of sea urchin larvae (Strongylocentrotus purpuratus Stimpson, 1857) collected from a naturally variable low pH upwelling site revealed that larvae under present day conditions initiated a robust transcriptional response, but only a muted response to near future conditions [130]. These exposures to transient extreme conditions may be sufficient to provide populations with a selection for tolerance (e.g., [131]). However, the question then becomes whether selection for one stressor will provide increased tolerance to another.…”

Section: Environmental Variabilitymentioning

confidence: 99%

“…An additional important consideration is the current local-scale variability of environmental conditions. If the adverse conditions that we expect by the end of the century are already being experienced by marine organisms, and are within the range of the current environmental variability (e.g., CO2-enriched upwelling, Kiel Fjord, western Baltic Sea [138]), then these transient extreme conditions may result in a pre-selection for tolerance (e.g., [131]). This pre-selection might be achieved through the divergent selection of specific genes in candidate loci (e.g., [114]), and contribute to the maintenance of positive life-history traits.…”

Section: Future Directionsmentioning

confidence: 99%

Evolution of Marine Organisms under Climate Change at Different Levels of Biological Organisation

Harvey

Al‐Janabi

Broszeit

et al. 2014

Water

View full text Add to dashboard Cite

Abstract:Research to date has suggested that both individual marine species and ecological processes are expected to exhibit diverse responses to the environmental effects of climate change. Evolutionary responses can occur on rapid (ecological) timescales, and yet studies typically do not consider the role that adaptive evolution will play in modulating biological responses to climate change. Investigations into such responses have typically been focused at particular biological levels (e.g., cellular, population, community), often lacking interactions among levels. Since all levels of biological organisation are sensitive to global climate change, there is a need to elucidate how different processes and hierarchical interactions will influence species fitness. Therefore, predicting the responses of communities and populations to global change will require multidisciplinary efforts across multiple levels of hierarchy, from the genetic and cellular to communities and ecosystems. Eventually, this may allow us to establish the role that acclimatisation and adaptation will play in determining marine community structures in future scenarios.

show abstract

Seaweed fails to prevent ocean acidification impact on foraminifera along a shallow‐water CO₂ gradient

Pettit

Smart

Hart

et al. 2015

Ecology and Evolution

View full text Add to dashboard Cite

Ocean acidification causes biodiversity loss, alters ecosystems, and may impact food security, as shells of small organisms dissolve easily in corrosive waters. There is a suggestion that photosynthetic organisms could mitigate ocean acidification on a local scale, through seagrass protection or seaweed cultivation, as net ecosystem organic production raises the saturation state of calcium carbonate making seawater less corrosive. Here, we used a natural gradient in calcium carbonate saturation, caused by shallow-water CO2 seeps in the Mediterranean Sea, to assess whether seaweed that is resistant to acidification (Padina pavonica) could prevent adverse effects of acidification on epiphytic foraminifera. We found a reduction in the number of species of foraminifera as calcium carbonate saturation state fell and that the assemblage shifted from one dominated by calcareous species at reference sites (pH ∼8.19) to one dominated by agglutinated foraminifera at elevated levels of CO2 (pH ∼7.71). It is expected that ocean acidification will result in changes in foraminiferal assemblage composition and agglutinated forms may become more prevalent. Although Padina did not prevent adverse effects of ocean acidification, high biomass stands of seagrass or seaweed farms might be more successful in protecting epiphytic foraminifera.

show abstract

Differential Responses of Calcifying and Non-Calcifying Epibionts of a Brown Macroalga to Present-Day and Future Upwelling pCO2

Cited by 34 publications

References 83 publications

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Evolution of Marine Organisms under Climate Change at Different Levels of Biological Organisation

Seaweed fails to prevent ocean acidification impact on foraminifera along a shallow‐water CO₂ gradient

Contact Info

Product

Resources

About

Differential Responses of Calcifying and Non-Calcifying Epibionts of a Brown Macroalga to Present-Day and Future Upwelling pCO2

Cited by 34 publications

References 83 publications

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (&lt;i&gt;Spirorbis spirorbis&lt;/i&gt;): an in situ benthocosm approach

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (&lt;i&gt;Spirorbis spirorbis&lt;/i&gt;): an in situ benthocosm approach

Evolution of Marine Organisms under Climate Change at Different Levels of Biological Organisation

Seaweed fails to prevent ocean acidification impact on foraminifera along a shallow‐water CO2 gradient

Contact Info

Product

Resources

About

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Effect of temperature rise and ocean acidification on growth of calcifying tubeworm shells (<i>Spirorbis spirorbis</i>): an in situ benthocosm approach

Seaweed fails to prevent ocean acidification impact on foraminifera along a shallow‐water CO₂ gradient