Parameterization of the response of calcification to temperature and pCO2 in the coral Acropora pulchra and the alga Lithophyllum kotschyanum.
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Oui |
| Statut de publication | : | Publié |
| Année de publication | : | 2016 |
| Auteurs (4) | : | COMEAU Steeve CARPENTER Robert,c LANTZ Coulson EDMUNDS Peter,j |
| Revue scientifique | : | Coral Reefs |
| Volume | : | |
| Fascicule | : | |
| Pages | : | |
| DOI | : | 10.1007/s00338-016-1425-0 |
| URL | : | - |
| Abstract | : | The response of tropical corals and calcifying algae to ocean acidification (OA) and warming has received much attention in the past decade. However, most studies have evaluated the response of organisms to two or three temperature treatments, which does not allow the functional relationship between calcification and tempera- ture under ambient and future pCO2 to be determined. This study tested the hypothesis that the relationship between calcification and temperature is affected by OA in the coral Acropora pulchra and the calcified alga Lithophyllum kotschyanum. Pieces of each organism were incubated under five (24–30 °C) or six (24–31.5 °C) temperatures crossed with two pCO2 levels (400 and 1000 latm), and calcification was assessed in trials conducted in the spring and summer. The response of coral calcification to tem- perature was a positive asymmetric parabola with a maxi- mum at *28 °C under both pCO2 levels and in both seasons; the effects of pCO2 on calcification were largest at *28 °C and lowest in both cool and warm temperatures. In contrast, calcification of the alga at both levels of pCO2 was unaffected by temperature in spring, but declined linearly with temperature in summer. This study demon- strates that the calcification response of coral reef organ- isms to the crossed effect of warming and OA is complex and cannot be fully assessed without using multiple tem- perature treatments that are ecologically relevant. |
| Mots-clés | : | - |
| Commentaire | : | - |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Comeau S, Carpenter RC, Lantz C, Edmunds PJ (2016) Parameterization of the response of calcification to temperature and pCO2 in the coral Acropora pulchra and the alga Lithophyllum kotschyanum. Coral Reefs | doi: 10.1007/s00338-016-1425-0
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