Indicators of diminished organic matter degradation potential of polychaete burrows in Philippine mariculture areas
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Sediments from underneath fish cages and in mesocosm tanks were examined to establish indicators of diminished organic matter degradation potential of polychaete burrows from increased mariculture activities in Bolinao-Anda, Pangasinan, Philippines. Results showed that simple sediment characteristics may be used as sediment quality indicators to describe the contribution of burrows to biodegradable processes in sediments with extremely high deposition of organic particles. The indicators of diminished organic matter degradation potential of polychaete burrows are low redox potential (-113 to -150 mV for F. Spionidae and F. Eunicidae) at the 1 cm surface layer, absence or decreased size of burrow openings, presence of H sub(2)S, disappearance of apparent Redox Potential Discontinuity Layer (aRPD), formation of black sediment, and presence of Beggiatoa (sulfide oxidizing bacteria) and gas bubbles.
Suggested CitationSantander, S. M. S., San Diego-McGlone, M. L., & Reichardt, W. (2008). Indicators of diminished organic matter degradation potential of polychaete burrows in Philippine mariculture areas.
Biodegradation; Burrowing organisms; Burrows; Culture effects; Environmental impact; Indicator species; Marine aquaculture; Organic matter; Sediment analysis; Philippines, Luzon I., Pangasinan, Anda; Philippines, Luzon I., Pangasinan, Bolinao; Polychaeta; Organic recycling; Sediment quality indicators
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