Publications des scientifiques de l'IRD

Pichler T., Biscere T., Kinch J., Zampighi M., Houlbrèque Fanny, Rodolfo-Metalpa Riccardo. (2019). Suitability of the shallow water hydrothermal system at Ambitle Island (Papua New Guinea) to study the effect of high pCO(2) on coral reefs. Marine Pollution Bulletin, 138, p. 148-158. ISSN 0025-326X.

Titre du document
Suitability of the shallow water hydrothermal system at Ambitle Island (Papua New Guinea) to study the effect of high pCO(2) on coral reefs
Année de publication
2019
Type de document
Article référencé dans le Web of Science WOS:000457512500018
Auteurs
Pichler T., Biscere T., Kinch J., Zampighi M., Houlbrèque Fanny, Rodolfo-Metalpa Riccardo
Source
Marine Pollution Bulletin, 2019, 138, p. 148-158 ISSN 0025-326X
Volcanic CO2 seeps were successfully used to predict coral reef response to ocean acidification, although toxic elements, often characteristic of hydrothermal vents were rarely reported. We measured the physicochemical conditions, seawater carbonate chemistry and trace elements in Tutum Bay, Papua New Guinea. There, intense emission of hydrothermal fluids and CO2 expose the coral reef to a seawater pH(T) between 7.6 and 7.7. Arsenic and silica were enriched by up to six times in surface seawater, while bottom concentrations were lower and thus similar to coral reefs worldwide. Manganese, cesium, iron and zinc concentrations fell into the range of other coastal environments. Our measurements suggest that Tutum Bay is a suitable site to study the response of coral reefs to high pCO(2). Considering that arsenic is a common metal in hydrothermal fluids, its characterization should be included in any study that uses volcanic CO2 seeps as natural laboratories for ocean acidification.
Plan de classement
Ecologie, systèmes aquatiques [036] ; Pollution [038]
Description Géographique
PAPOUASIE NOUVELLE GUINEE ; AMBITLE ILE ; TUTUM BAIE
Localisation
Fonds IRD [F B010075148]
Identifiant IRD
fdi:010075148
Contact