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BIOFAQs
Biofiltration and aquaculture - an evaluation of hard substrate deployment performance within mariculture developments

Marine cage fish cultures deposit untreated solid wastes on the seabed below cages, which has a deleterious effect of the benthic environment. It is proposed to examine the hydrodynamic, chemical and biological consequences of treating this waste in situ by deploying hard substrates with a large surface area below the cages (biofilters) in contrasting environments. The performance of such biofilters will be examined using a combination of mesocosm and field experiments at pilot scale sites. The pan-European Union legal and socio-economic implications of biofilter deployment will be examined in detail. However, it is hypothesised that biofilters will increase the rate of organic matter remineralisation, which will, across a range of sites, decrease the environmental impacts of mariculture and/or increase the environmental carrying capacity.

Objectives
To quantify the validity of biofilter use in association with mariculture.
To optimise biofilter designs and placement protocols in line with geographical differences and model predictions.
To examine the environmental and regulatory options governing post-biofilter usage and to provide detailed economic analyses of biofilter use compared with existing practices.

Results
A comprehensive trans-European assessment of the environmental benefits of biofilter deployment in association with maricultyre concerns.
Guidance on physical design, and size and location of biofilter deployment.
A socioeconomic cost-benefit analysis of biofilter deployment.
Dissemination of the projetc findings.

Classified in SOIL, CAP AND RURAL DEVELOPMENT, FISHERIES AND AQUACULTURE

Scientist responsible for the project

Dr KENNETH BLACK
Dunstaffnage Marine Laboratory Box 3
PA 37 1QA Oban
United Kingdom (The) - GB

Phone: +44 1631 559259
Fax: +44 1631 559001
E-mail: kdb@dml.ac.uk

References

Project ID QLRT-1999-30305
Organisation Scottish Association for Marine Science
Area 5.1.2
Start date 01 October 2000
Duration (months) 36
Total cost 2 491 340 €
Total EC contribution   1 300 000 €
Status Unknown

The partners

  • Scottish Association for Marine Science, United Kingdom (The) - GB
    kdb@dml.ac.uk
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