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Coupled Nutrient-Plankton-Zooplankton-Fish Models

Coupled Nutrient-Plankton-Zooplankton-Fish Models. Howard Townsend, NCBO Tom Wainwright, NWFSC Buck Stockhausen, AFSC Andrew Leising, SWFSC Hongguang Ma, NCBO. Major efforts within NOAA.

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Coupled Nutrient-Plankton-Zooplankton-Fish Models

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  1. Coupled Nutrient-Plankton-Zooplankton-Fish Models Howard Townsend, NCBO Tom Wainwright, NWFSC Buck Stockhausen, AFSC Andrew Leising, SWFSC Hongguang Ma, NCBO NEMoW – Coupled NPZ-Fish Models

  2. Major efforts within NOAA • NEMURO (North Pacific Ecosystem Model for Understanding Regional Oceanography) – Modeling Suite • NPZ model (NEMURO) dynamically linked to fish bioenergetics and population dynamics model • NPZ-Cal (NPZ linked to Copepod IBM for the California Current) • NPZ model driven by assimilated or observed physical data or environmental indices (e.g. upwelling index), which then serves as prey fields for more complex Calanus spp. individual-based model. Run in 1D (vertical )boxes covering various west coast locations. No fish yet. • DisMELS (Dispersal Model for Early Life Stages) • A coupled biophysical individual-based model that incorporates ontogenetic changes in early life stage parameters and simulates egg and larval dispersal under 3-dimensional (3D) oceanographic currents • CBWQM and FEM (Chesapeake Bay coupled Water Quality Model and Fisheries Ecosystem Model) • The Chesapeake Bay Water Quality modeling suite includes the linked Airshed Model, Watershed Model, Estuarine Hydrodynamic Model, Estuarine Water Quality Model, and Living Resources Model developed by the Chesapeake Bay Program (led by EPA). Chesapeake Bay Fisheries Ecosystem Model (using EwE) was developed by NOAA Chesapeake Bay Office. The modeling suites are linked using physical forcing functions. NEMoW – Coupled NPZ-Fish Models

  3. More Information on Modeling Efforts:NEMURO • Tom Wainwright, NWFSC • Ecological Modelling 2007 special issue, v. 202 #1-2 NEMoW – Coupled NPZ-Fish Models

  4. Reproductive egg LargeCiliate Non-feeding C1 N1-2 dormant C5 N3 Small Flagellate Hetero Dino N4-6 C5 feeding Stores lipids C1 C4 C3 C2 Hetero Bacteria Auto Bacteria Auto Dino Small Diatoms Large Diatoms Start to migrate DOM Iron Silica NO3+NH4 More Information on Modeling Efforts:NPZ-Cal • Andrew Leising, SWFSC-ERD Observations or GCM model Temperature Prey Field NEMoW – Coupled NPZ-Fish Models

  5. ROMS 3D Hydrodynamic Model Output IBM for Early Life History Stages Egg Stage 1 Egg Stage N Larval Stage 1 Larval Stage M More Information on Modeling Efforts:DisMELS • Buck Stockhausen, AFSC • http://www.afsc.noaa.gov/quarterly/jas2006/divrptsREFM6.htm NEMoW – Coupled NPZ-Fish Models

  6. WQM Output  Ecosim forcing function  Upper trophic level effects Monthly average Chlorophyll a from WQM More Information on Modeling Efforts:Chesapeake Bay coupled Water Quality Model and Fisheries Ecosystem Model • Hongguang Ma, NCBO • http://www.chesapeakebay.net/pubs/subcommittee/mdsc/doc-2002_Eutrophication_Model.pdf • http://noaa.chesapeakebay.net/EcosystemModel.aspx NEMoW – Coupled NPZ-Fish Models

  7. What is/has/will the model be used for? NEMoW – Coupled NPZ-Fish Models

  8. What are the data requirements? • HUGE for full validation: physical circulation, temperature, plankton abundances, fish population biomass, fish individual weights, fish diet and foraging rates. • If you’re lucky the physical modeling data and validation requirements have already been dealt with elsewhere. • So you’re still left with the typical multi-species data needs plus info on phytoplankton and zooplankton NEMoW – Coupled NPZ-Fish Models

  9. Are these data gaps informing monitoring efforts? NEMoW – Coupled NPZ-Fish Models

  10. What are the key features/equations/functions/assumptions of the model? TOO MANY TO LIST HERE – REFER TO EARLIER SLIEDES WITH REFERENCES FOR MORE INFORMATION NEMoW – Coupled NPZ-Fish Models

  11. What are the strengths of this model? NEMoW – Coupled NPZ-Fish Models

  12. What are the weaknesses of this model? NEMoW – Coupled NPZ-Fish Models

  13. Model 1)in peer-review literature, 2)formally peer-reviewed, 3)outputs formally reviewed? NEMoW – Coupled NPZ-Fish Models

  14. How portable is the model software package? NEMoW – Coupled NPZ-Fish Models

  15. What remains for model development/ improvement/enhancement? NEMoW – Coupled NPZ-Fish Models

  16. Has/is/will the model outputs be used in LMR management? NEMoW – Coupled NPZ-Fish Models

  17. Partners external to NMFS required to accomplish model coupling development, etc? NEMoW – Coupled NPZ-Fish Models

  18. Take Home Point • Different NPZ-Fish modeling approaches have arisen across NMFS, and these approaches have been published and have had some value in providing management advice. • Development of an NPS-Fish model for a NMFS Ecosystem Modeling Toolbox may be useful NEMoW – Coupled NPZ-Fish Models

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