Seawater carbonate chemistry near the Island of Ischia, Italy, 2008, supplement to: Cigliano, M; Gambi, Maria Cristina; Rodolfo-Metalpa, Riccardo; Patti, F P; Hall-Spencer, Jason M (2010): Effects of ocean acidification on invertebrate settlement at volcanic CO2 vents. Marine Biology, 157(11), 2489-2502


We present the first study of the effects of ocean acidification on settlement of benthic invertebrates and microfauna. Artificial collectors were placed for 1 month along pH gradients at CO2 vents off Ischia (Tyrrhenian Sea, Italy). Seventy-nine taxa were identified from six main taxonomic groups (foraminiferans, nematodes, polychaetes, molluscs, crustaceans and chaetognaths). Calcareous foraminiferans, serpulid polychaetes, gastropods and bivalves showed highly significant reductions in recruitment to the collectors as pCO2 rose from normal (336-341 ppm, pH 8.09-8.15) to high levels (886-5,148 ppm) causing acidified conditions near the vents (pH 7.08-7.79). Only the syllid polychaete Syllis prolifera had higher abundances at the most acidified station, although a wide range of polychaetes and small crustaceans was able to settle and survive under these conditions. A few taxa (Amphiglena mediterranea, Leptochelia dubia, Caprella acanthifera) were particularly abundant at stations acidified by intermediate amounts of CO2 (pH 7.41-7.99). These results show that increased levels of CO2 can profoundly affect the settlement of a wide range of benthic organisms.

Metadata Access
Creator Cigliano, M;Gambi, Maria Cristina;Rodolfo-Metalpa, Riccardo;Patti, F P;Hall-Spencer, Jason M
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2010
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (41N-41N,14E-14E)
Temporal Point 2008-06-05T11:59:59Z