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Assessment of uncertain alternatives for co-located aquaculture and offshore wind farm in Tasmania


Villalba, JF and Abdussamie, N and Aryai, V and Nikolova, N and Tenekedjiev, K and Wang, C-M and Penesis, I, Assessment of uncertain alternatives for co-located aquaculture and offshore wind farm in Tasmania, Ocean Engineering, 249 Article 110949. ISSN 0029-8018 (2022) [Refereed Article]

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Copyright 2022 Elsevier Ltd.

DOI: doi:10.1016/j.oceaneng.2022.110949


This study investigated a set of 36 alternatives of co-located aquaculture and an offshore wind farm in three potential sites across Tasmania. We assessed the alternatives against technological aspects, environmental aspects, and site-selection factors through the development of a Bayesian network and an influence diagram such that the uncertainties of each possible vector of consequences were effectively assessed for each alternative. We structured the consequence space as a three-level hierarchical tree and constructed the multi-attribute utility function under various independence conditions. We described in detail the assessment of the scaling constants in the multi-attribute utility function. The analysed alternatives were ranked based on the maximum expected utility rule to outline the best one. We performed one-dimensional and multi-dimensional sensitivity analyses, to test how the solution is impacted by the subjectively assessed five-dimensional utility function and showed that the constructed function is rather robust within a very wide range of values. Finally, we outlined some future aspects of development and implementation for the Bayesian-network-influence diagram based multi-attribute analysis as a decision-support system tool for offshore Blue Growth projects with different types of production systems.

Item Details

Item Type:Refereed Article
Keywords:offshore wind farm, aquaculture farm, decision-making, independence conditions, sensitivity analysis, Blue growth, Blue economy
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - aquaculture
Objective Field:Fisheries - aquaculture not elsewhere classified
UTAS Author:Villalba, JF (Mr John Villalba)
UTAS Author:Abdussamie, N (Dr Nagi Abdussamie)
UTAS Author:Aryai, V (Dr Vahid Aryai)
UTAS Author:Nikolova, N (Professor Nataliya Nikolova)
UTAS Author:Tenekedjiev, K (Professor Kiril Tenekedjiev)
UTAS Author:Penesis, I (Professor Irene Penesis)
ID Code:149116
Year Published:2022
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2022-03-10
Last Modified:2022-04-22

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