Managing marine environments and decision-making requires better application of the physical sedimentary sciences

P. Larcombe, Angus Morrison-Saunders

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    Effective management of marine environments requires a sound understanding of the relevant physical sedimentary sciences. Environmental impact assessment (EIA) is a key management and decision-making tool employed in Australia for coastal and marine developments. This article examines the veracity of the application of the marine physical sciences within the EIA process, using turbidity measurement and sediment transport pathways as examples. A review of EIA guidance reveals deficiencies in regulation. Turbidity measurement is poorly understood and performed in current practice, while a focus on protecting marine habitats largely ignores those physical sedimentary processes, such as long-term bed-sediment transport pathways, that create and maintain these habitats. Thus evaluations of impacts of offshore activities such as channel dredging and spoil emplacement at sea are fundamentally flawed. An extensive body of scientific knowledge is already available on marine physical processes, and equivalent information for assessments of terrestrial development is routinely taken into consideration. Perhaps practice for the marine environment lags behind that for terrestrial settings or is it a case of ‘out of sight – out of mind’? We call on environmental management professionals to increase engagement with the physical processes that determine the quality of marine environments.

    Original languageEnglish
    Pages (from-to)200-221
    Number of pages22
    JournalAustralasian Journal of Environmental Management
    Volume24
    Issue number2
    DOIs
    Publication statusE-pub ahead of print - 5 Apr 2017

    Fingerprint

    environmental impact assessment
    marine environment
    decision making
    environmental impact
    sediment transport
    turbidity
    science
    habitat
    physical science
    dredging
    environmental management
    emplacement
    management
    regulation
    evaluation
    knowledge
    physical process

    Cite this

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    abstract = "Effective management of marine environments requires a sound understanding of the relevant physical sedimentary sciences. Environmental impact assessment (EIA) is a key management and decision-making tool employed in Australia for coastal and marine developments. This article examines the veracity of the application of the marine physical sciences within the EIA process, using turbidity measurement and sediment transport pathways as examples. A review of EIA guidance reveals deficiencies in regulation. Turbidity measurement is poorly understood and performed in current practice, while a focus on protecting marine habitats largely ignores those physical sedimentary processes, such as long-term bed-sediment transport pathways, that create and maintain these habitats. Thus evaluations of impacts of offshore activities such as channel dredging and spoil emplacement at sea are fundamentally flawed. An extensive body of scientific knowledge is already available on marine physical processes, and equivalent information for assessments of terrestrial development is routinely taken into consideration. Perhaps practice for the marine environment lags behind that for terrestrial settings or is it a case of ‘out of sight – out of mind’? We call on environmental management professionals to increase engagement with the physical processes that determine the quality of marine environments.",
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    Managing marine environments and decision-making requires better application of the physical sedimentary sciences. / Larcombe, P.; Morrison-Saunders, Angus.

    In: Australasian Journal of Environmental Management, Vol. 24, No. 2, 05.04.2017, p. 200-221.

    Research output: Contribution to journalArticle

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