Lethal and sub-lethal impacts of dredge related stressors on corals

Pia Bessell-Browne

doi:10.4225/23/59dc56c9a1c73

Lethal and sub-lethal impacts of dredge related stressors on corals

Pia Bessell-Browne

Centre for Microscopy, Characterisation & Analysis

Research output: Thesis › Doctoral Thesis

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Abstract

Corals are the framework builders of coral reefs and face a suite of global and local pressures. One prominent local pressure is dredging. This project has investigated the impacts of a large-scale dredging project on coral health, and performed laboratory experiments Investigating the specific causal pathways and thresholds values of sediment related pressures. Additionally, cumulative impacts of both locally (sediment) and globally-relevant (temperature) pressures were Investigated. The results demonstrate that dredging impacts upon coral health and that cumulative Impacts further reduce health. These results provide critical knowledge to Improve the future management of dredging activities near coral reefs.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Clode, Peta, Supervisor Jones, Ross, Supervisor Negri, Andrew P., Supervisor, External person Duckworth, Alan, Supervisor, External person
Thesis sponsors	Australian Government Research Training Program
Award date	3 Oct 2017
DOIs	https://doi.org/10.4225/23/59dc56c9a1c73
Publication status	Unpublished - 2017

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10.4225/23/59dc56c9a1c73

THESIS - DOCTOR OF PHILOSOPHY - BESSELL-BROWNE Pia - 2017
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Cite this

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title = "Lethal and sub-lethal impacts of dredge related stressors on corals",

abstract = "Corals are the framework builders of coral reefs and face a suite of global and local pressures. One prominent local pressure is dredging. This project has investigated the impacts of a large-scale dredging project on coral health, and performed laboratory experiments Investigating the specific causal pathways and thresholds values of sediment related pressures. Additionally, cumulative impacts of both locally (sediment) and globally-relevant (temperature) pressures were Investigated. The results demonstrate that dredging impacts upon coral health and that cumulative Impacts further reduce health. These results provide critical knowledge to Improve the future management of dredging activities near coral reefs.",

keywords = "Coral health, Suspended sediment concentrations, Light attenuation, Coral bleaching, Deposited sediment, Thresholds, Dredging, Bioindicator",

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AB - Corals are the framework builders of coral reefs and face a suite of global and local pressures. One prominent local pressure is dredging. This project has investigated the impacts of a large-scale dredging project on coral health, and performed laboratory experiments Investigating the specific causal pathways and thresholds values of sediment related pressures. Additionally, cumulative impacts of both locally (sediment) and globally-relevant (temperature) pressures were Investigated. The results demonstrate that dredging impacts upon coral health and that cumulative Impacts further reduce health. These results provide critical knowledge to Improve the future management of dredging activities near coral reefs.

KW - Coral health

KW - Suspended sediment concentrations

KW - Light attenuation

KW - Coral bleaching

KW - Deposited sediment

KW - Thresholds

KW - Dredging

KW - Bioindicator

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DO - 10.4225/23/59dc56c9a1c73

M3 - Doctoral Thesis

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Lethal and sub-lethal impacts of dredge related stressors on corals

Abstract

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