7 Detritis as a Food Source

7 Detritis as a Food Source - Organie Detritus — What is...

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Unformatted text preview: Organie Detritus — What is it? '- Dead er excreted erganie matter inhabited by deeempesers *- Ineludes PGM {R2 DOM (€0.45 um) *- Related Terms — Sesten - Tripten - Plankten Aerabie Detrital Deeampasitian 1) Leaching phase 2) Fungal then Baeterial Celenisatien 3) Weakened tissues break dawn Iiieehaniealljv,r eften aided by hie-shredding 4) Decrease in C:N ratie as material ages and mierebial biemass inereases Rate of Decomposition '- Temperature *- quudatiou I Exposure frequency *- Particle aiae '- Souree (qualitative) material *- Oxygeu availability *- Fauual abuudauee Anaerobic Decomposition 1' Sulphate reducers. very important in high organic matter environments It May rival production by aerobic microbes ' More responsible for remineraliaation 1' Biomass is assessable to onl}r a few facultatire anaerobic metaaoans {SC protozoans Tracing Seurees ei' Carhen in Organism Censumptien 1' Stable isetepe analysis (C, N, S) '- Carbea isetepe eempesitiea differs fer varieus primary predueers (13C IIZC) ' Fer eeasumer erganisms the earbea eeataiaed in the tissues eemes frem the feeds that the}.r eat ' Much eeasamptien in eeastal regieas is based upen detritus ...
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  • Spring '08
  • koepfler
  • Anaerobic digestion, Composting, Plankten Aerabie Detrital Deeampasitian, abuudauee Anaerobic Decomposition, Carbea isetepe eempesitiea

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7 Detritis as a Food Source - Organie Detritus — What is...

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