First direct evidence of methane seepage and associated chemosynthetic communities in the bathyal zone off Chile

Javier Sellanes, EDUARDO JOEL QUIROGA JAMETT, Víctor A. Gallardo

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

The occurrence of an area of methane seepage off Chile is reported for the first time. Shell fragments of two species of bivalves of the genus Calyptogena and one species of Acharax were retrieved in dredge hauls from 651 to 934 m depth off Concepción (∼36°S). A large quantity of carbonate blocks was also collected, indicating anaerobic oxidation of methane in the sediment. The accompanying, non-chemosynthetic fauna from one of the hauls was diverse, containing some species new to science. Our preliminary data suggests an assemblage similar in structure to those reported elsewhere, albeit with an important endemic component.

Original languageEnglish
Pages (from-to)1065-1066
Number of pages2
JournalJournal of the Marine Biological Association of the United Kingdom
Volume84
Issue number5
DOIs
StatePublished - 1 Oct 2004

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