1 / 10

Ammonia

Respiration & Excretion. Ammonia. Nitrification #1. Higher Trophic Levels. Nitrite. Phyto. Zoo. Nitrification #2. Nitrate. PON Mineraliz. Denitrification. Predation. Molecular nitrogen. DON Mineraliz. PON. Mortality & Excretion. Zoo - Copepod. Non-assimil ated. Decomposition.

cameron-mays
Télécharger la présentation

Ammonia

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Respiration & Excretion Ammonia Nitrification #1 Higher Trophic Levels Nitrite Phyto Zoo Nitrification #2 Nitrate PON Mineraliz. Denitrification Predation Molecular nitrogen DON Mineraliz. PON Mortality & Excretion Zoo - Copepod Non-assimilated Decomposition. DON-R Respiration & Excretion DON-NR

  2. Respiration & Excretion N Ammonia Nitrification #1 Higher Trophic Levels C C Nitrite N Phyto Zoo Nitrification #2 N Nitrate PON Mineraliz. Denitrification Predation Molecular nitrogen N DON Mineraliz. N PON Mortality & Excretion Zoo - Copepod Protozoa - Ciliate Non-assimilated Decomposition. N DON-R Respiration & Excretion N DON-NR Uptake Release C C Bacteria Protozoa Predation

  3. N Ammonia C Phyto N PON • Razão C:N:P fixa - 106:16:1 (RedField) • Modelação do carbono implícita

  4. Organismo “standard” CO2 NH4 ; PO4 respiração excreção de nutrientes X Alimento uptake Predadores C:N:P predação “slopy feeding”,etc. mortalidade DOM POM

  5. NH4 CO2 SiO4 NO3 PO4 [O2] [O2] DOC DON DOP

  6. O2 Phytoplankton O C N P NH4 CO2 N O C O Microzooplankton R PO4 P C N P O C R U G BACTERIA POM C N P R C N P M DOM U C N P L H H DOM (semi- labile) C N P Multi-element model Grazing Hydrolysis Lysis Mortality Respiration Uptake

  7. Vantagens desta abordagem: • Desacoplar o uptake de cada nutriente • Razões C:N:P variáveis • Considerar o armazenamento de nutrientes

  8. Nutrientes (P) Descargas Fitoplâncton Descargas Matéria orgânica O2 CO2 Bactérias

More Related