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Ecospace

Ecospace. Beth Fulton. 2012. Ecospace. Builds on Ecopath and Ecosim Spatial version Regular grid ECOSIM on each cell movement along gradients across cell (weighted by preferred habit) Once defined go to ‘ Run Ecospace ’ and press ‘ Run ’

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Ecospace

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  1. Ecospace Beth Fulton 2012

  2. Ecospace • Builds on Ecopath and Ecosim • Spatial version • Regular grid • ECOSIM on each cell • movement along gradients across cell (weighted by preferred habit) • Once defined go to ‘Run Ecospace’ and press ‘Run’ • output is spatial distribution of groups through time and overall Ecosim result ECOPATH, ECOSIM and ECOSPACE

  3. Ecospace • Replicates Ecosim dynamics in each cell • Links cells through dispersal of organisms and effort allocation (and advection option) Equal m’s (symmetrical mixing, except at shores or when toward preferred habitats) mi,j+1Bij Bij ECOPATH, ECOSIM and ECOSPACE

  4. Ecospace • Basemap (can be from GIS) • define rows and columns • select habitat type and draw it on • draw on protected zones • define areas of differing relative primary productivity • all done by selecting different option on sheet and then drawing in shape with cursor • loading GIS maps gets easier ECOPATH, ECOSIM and ECOSPACE

  5. Ecospace • Basemap (can be from GIS)

  6. Ecospace - Habitats • Habitats – define by clinking on habitats icon • Represents habitat ‘preferences’ by differential dispersal, feeding and predation rates

  7. Ecospace - Habitats • Association of groups to habitats • identify habitats fisheries can access ECOPATH, ECOSIM and ECOSPACE ECOPATH, ECOSIM and ECOSPACE

  8. Ecospace - Map • Accounts for spatial variation in productivity and cost of fishing (paint or load)

  9. Ecospace - Advection • Advection = slab hydrodynamic flows (per month) • load or draw on wind, upwelling, MLD and “Calculate”

  10. Ecospace - Movement • Include dispersal

  11. Ecospace - Migration • Migration centre point specified per month per species

  12. Ecospace - Run • Once defined go to ‘Run Ecospace’ and press ‘Run’ • output is spatial distribution of groups through time and overall Ecosim result

  13. Ecospace – Extras • Ecoseed = spatial optimisation of MPA size & location • Evaluates one seed cell for each run • “Best” seed cell is selected as an MPA cell • Adjacent cells become seed cells • Process continues until all cells are MPAs ECOPATH, ECOSIM and ECOSPACE

  14. Ecospace - Example • Marine protected area effects

  15. Thank you

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