Assessing a bioremediation strategy in a shallow coastal system affected by a fish farm culture - Application of GIS and shellfish dynamic models in the Rio San Pedro, SW Spain

CLAUDIO SILVA GALLINATO, E. Yáñez, M. L. Martín-Díaz, T. A. DelValls

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20 Scopus citations

Abstract

An integrated multi-trophic aquaculture assessment for Pacific oyster (Crassostrea gigas) aquaculture as a bioremediation strategy in areas impacted by fish farm effluents in Rio San Pedro was assessed by combining geographic information system with carrying capacity models. Sites of 0.44km 2 were evaluated considering constraints; physical factors, growth and survival factors, environmental quality factors, water and sediment quality criteria, factor suitability ranges, and Multi-Criteria Evaluation. Isleta and Flamenco are promising sites for oyster production, and Dorada is of marginal interest. Carbon and nitrogen removal from the water by algae and through detritus filtration was estimated. The biodeposition of organic material from longline leases was found to have little negative impact on sediment. The eutrophication results indicate that phytoplankton removal had a positive impact on water quality at the Dorada.This case study quantified the direct profitability and bioremediative environmental service advantages that fish-shellfish farms can have relative to fish monocultures.

Original languageEnglish
Pages (from-to)751-765
Number of pages15
JournalMarine Pollution Bulletin
Volume64
Issue number4
DOIs
StatePublished - 1 Apr 2012

Keywords

  • Bioremediation
  • Carbon and nitrogen mass balance
  • Carrying capacity
  • Eutrophication
  • Geographic information systems
  • Integrated multi-trophic aquaculture

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