Ecospace Beth Fulton 2012. Builds on Ecopath and Ecosim Spatial version Regular grid ECOSIM on each cell movement along gradients across cell (weighted.
Post on 27-Mar-2015
217 Views
Preview:
Transcript
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
top related