Seawater carbonate chemistry and live coral performance vs. framework dissolution and bioerosion
Gespeichert in:
| Titel: | Seawater carbonate chemistry and live coral performance vs. framework dissolution and bioerosion |
|---|---|
| Autoren: | Büscher, Janina, Form, Armin, Wisshak, Max, Kiko, Rainer, Riebesell, Ulf |
| Verlagsinformationen: | PANGAEA |
| Publikationsjahr: | 2022 |
| Bestand: | PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen) |
| Schlagwörter: | Alkalinity, total, Animalia, Aragonite saturation state, Ash free dry mass, Benthic animals, Benthos, Bicarbonate ion, BIOACID, Calcification/Dissolution, Calcite saturation state, Calculated using seacarb after Nisumaa et al. (2010), Carbon, inorganic, dissolved, Carbonate ion, Carbonate system computation flag, Carbon dioxide, Cnidaria, Coast and continental shelf, Containers and aquaria (20-1000 L or < 1 m**2), Coral polyp, Dissolution rate, Dry mass, Experimental treatment, Fugacity of carbon dioxide (water) at sea surface temperature (wet air), Group, Growth/Morphology, Interval, JAGO |
| Geographisches Schlagwort: | LATITUDE: 63.606833 * LONGITUDE: 9.380000 * DATE/TIME START: 2013-06-29T11:06:00 * DATE/TIME END: 2013-06-29T11:06:00 * MINIMUM ELEVATION: -199.7 m * MAXIMUM ELEVATION: -199.7 m |
| Beschreibung: | Physiological sensitivity of cold-water corals to ocean change is far less understood than of tropical corals and very little is known about the impacts of ocean acidification and warming on degradative processes of dead coral framework. In a 13-month laboratory experiment, we examined the interactive effects of gradually increasing temperature and pCO2 levels on survival, growth, and respiration of two prominent color morphotypes (colormorphs) of the framework-forming cold-water coral Lophelia pertusa, as well as bioerosion and dissolution of dead framework. Calcification rates tended to increase with warming, showing temperature optima at ~ 14°C (white colormorph) and 10–12°C (orange colormorph) and decreased with increasing pCO2. Net dissolution occurred at aragonite undersaturation (ΩAr < 1) at ~ 1000 μatm pCO2. Under combined warming and acidification, the negative effects of acidification on growth were initially mitigated, but at ~ 1600 μatm dissolution prevailed. Respiration rates increased with warming, more strongly in orange corals, while acidification slightly suppressed respiration. Calcification and respiration rates as well as polyp mortality were consistently higher in orange corals. Mortality increased considerably at 14–15°C in both colormorphs. Bioerosion/dissolution of dead framework was not affected by warming alone but was significantly enhanced by acidification. While live corals may cope with intermediate levels of elevated pCO2 and temperature, long-term impacts beyond levels projected for the end of this century will likely lead to skeletal dissolution and increased mortality. Our findings further suggest that acidification causes accelerated degradation of dead framework even at aragonite saturated conditions, which will eventually compromise the structural integrity of cold-water coral reefs. |
| Publikationsart: | dataset |
| Dateibeschreibung: | text/tab-separated-values, 21772 data points |
| Sprache: | English |
| Relation: | Büscher, Janina; Form, Armin; Wisshak, Max; Kiko, Rainer; Riebesell, Ulf (2022): Cold-water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion. Limnology and Oceanography, 67(11), 2497-2515, https://doi.org/10.1002/lno.12217; Büscher, Janina; Form, Armin; Wisshak, Max; Kiko, Rainer; Riebesell, Ulf (2022): Growth, respiration and mortality rates of live L. pertusa under gradually amplifying acidification and warming increments and consequences for dissolution and bioerosion of dead coral framework [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.947285; Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html; https://doi.pangaea.de/10.1594/PANGAEA.952909; https://doi.org/10.1594/PANGAEA.952909 |
| DOI: | 10.1594/PANGAEA.952909 |
| Verfügbarkeit: | https://doi.pangaea.de/10.1594/PANGAEA.952909 https://doi.org/10.1594/PANGAEA.952909 |
| Rights: | CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess |
| Dokumentencode: | edsbas.9CB784E2 |
| Datenbank: | BASE |
Nájsť tento článok vo Web of Science Schreiben Sie den ersten Kommentar!