Document Type

Thesis

Publication details

Swan, HB 2017, 'Investigation of dimethylsulfide biogeochemistry relevant to the CLAW hypothesis at Heron Island, Southern Great Barrier Reef', PhD thesis, Southern Cross University, Lismore, NSW.

Copyright HB Swan 2017

Abstract

This dissertation presents an improved understanding of the Great Barrier Reef as a source of atmospheric dimethylsulfide (DMS) for the formation of new aerosol particles in the context of the CLAW hypothesis. Intermittent plumes of DMS and new atmospheric nano-particles < 15 nm diameter were detected over the coral reef surrounding Heron Island in response to conditions that can stress the coral such as daytime aerial exposure of the reef at low tide. Acropora spp. branching coral was a relatively important source of atmospheric DMS based on its cellular abundance of the DMS precursor, dimethylsulfoniopropionate, compared with other coral genera.

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