Ecospace

Beth Fulton2012

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

Ecospace

Replicates Ecosim dynamics in each cell Links cells through dispersal of organisms and effort

allocation (and advection option)

ECOPATH, ECOSIM and ECOSPACE

Ecospace

BijBij

Equal m’s (symmetrical mixing,except at shores or when toward preferred habitats)

Equal m’s (symmetrical mixing,except at shores or when toward preferred habitats)

mi,j+1Bijmi,j+1Bij

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

Ecospace

Basemap (can be from GIS)

Ecospace

Habitats – define by clinking on habitats icon Represents habitat ‘preferences’ by differential dispersal,

feeding and predation rates

Ecospace - Habitats

ECOPATH, ECOSIM and ECOSPACE

Association of groups to habitats− identify habitats fisheries can access

ECOPATH, ECOSIM and ECOSPACE

Ecospace - Habitats

Accounts for spatial variation in productivity and cost of fishing (paint or load)

Ecospace - Map

Ecospace - Advection

Advection = slab hydrodynamic flows (per month)− load or draw on wind, upwelling, MLD and “Calculate”

Include dispersal

Ecospace - Movement

Migration centre point specified per month per species

Ecospace - Migration

Once defined go to ‘Run Ecospace’ and press ‘Run’− output is spatial distribution of groups through time

and overall Ecosim result

Ecospace - Run

Ecoseed = spatial optimisation of MPA size & location

ECOPATH, ECOSIM and ECOSPACE

Ecospace – Extras

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

Marine protected area effects

Ecospace - Example

Thank you