Ocean acidification impairs vermetidreef recruitment

Renato Chemello, Marco Milazzo, Riccardo Rodolfo-Metalpa, Vera Bin San Chan, Vengatesen Thiyagarajan, Jason M. Hall-Spencer, Maoz Fine

Risultato della ricerca: Articlepeer review

58 Citazioni (Scopus)

Abstract

Vermetids form reefs in sub-tropical and warm-temperate waters that protect coasts from erosion, regulate sediment transport and accumulation, serve as carbon sinks and provide habitat for other species. The gastropods that form these reefs brood encapsulated larvae; they are threatened by rapid environmental changes since their ability to disperse is very limited. We used transplant experiments along a natural CO2 gradient to assess ocean acidification effects on the reef-building gastropod Dendropoma petraeum. We found that although D. petraeum were able to reproduce and brood at elevated levels of CO2, recruitment success was adversely affected. Long-term exposure to acidified conditions predicted for the year 2100 and beyond caused shell dissolution and a significant increase in shell Mg content. Unless CO2 emissions are reduced and conservation measures taken, our results suggest these reefs are in danger of extinction within this century, with significant ecological and socioeconomic ramifications for coastal systems.
Lingua originaleEnglish
Numero di pagine7
RivistaScientific Reports
Volume4: 4189
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

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