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Spatial modeling of environmental vulnerability of marine finfish aquaculture using GIS-based neuro-fuzzy techniques

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.

Keywords
Marine environmental vulnerability; Neuro-fuzzy techniques; Geographic Information Systems; Marine cage aquaculture

StatusPublished
AuthorsNavas Jose M, Telfer Trevor, Ross Lindsay
Publication date08/2011
PublisherElsevier
ISSN 0025-326X
LanguageEnglish

Journal
Marine Pollution Bulletin: Volume 62, Issue 8 (2011)

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