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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Spatial modeling of environmental vulnerability of marine finfish aquaculture using GIS-based neuro-fuzzy techniques
Author(s): Navas, Jose M
Telfer, Trevor
Ross, Lindsay
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Keywords: Marine environmental vulnerability
Neuro-fuzzy techniques
Geographic Information Systems
Marine cage aquaculture
Issue Date: Aug-2011
Citation: Navas JM, Telfer T & Ross L (2011) Spatial modeling of environmental vulnerability of marine finfish aquaculture using GIS-based neuro-fuzzy techniques, Marine Pollution Bulletin, 62 (8), pp. 1786-1799.
Abstract: Combining GIS with neuro-fuzzy modeling has the advantage that expert scientific knowledge in coastal aquaculture activities can be incorporated into a geospatial model to classify areas particularly vulnerable to pollutants. Data on the physical environment and its suitability for aquaculture in an Irish fjard, which is host to a number of different aquaculture activities, were derived from a three-dimensional hydrodynamic and GIS models. Subsequent incorporation into environmental vulnerability models, based on neuro-fuzzy techniques, highlighted localities particularly vulnerable to aquaculture development. The models produced an overall classification accuracy of 85.71%, with a Kappa coefficient of agreement of 81%, and were sensitive to different input parameters. A statistical comparison between vulnerability scores and nitrogen concentrations in sediment associated with salmon cages showed good correlation. Neuro-fuzzy techniques within GIS modeling classify vulnerability of coastal regions appropriately and have a role in policy decisions for aquaculture site selection.
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