Model:Ecopath with Ecosim

Ecopath with Ecosim

Also known as	EwE
Model type	Single
Model part of larger framework
Note on status model
Date note status model

Incorporated models or components:

Spatial dimensions	2D
Spatial extent	Regional-Scale
Model domain	Marine, Ecosystems
One-line model description	Ecopath with Ecosim (EwE) is an ecological modeling software suite for personal computers
Extended model description	Ecopath with Ecosim (EwE) is an ecological modeling software suite for personal computers. EwE has three main components: Ecopath – a static, mass-balanced snapshot of the system; Ecosim – a time dynamic simulation module for policy exploration; and Ecospace – a spatial and temporal dynamic module primarily designed for exploring impact and placement of protected areas. The Ecopath software package can be used to: Address ecological questions; Evaluate ecosystem effects of fishing; Explore management policy options; Evaluate impact and placement of marine protected areas; Evaluate effect of environmental changes.

Keywords:

Name	Villy Christensen
Type of contact	Model developer
Institute / Organization	UBC Fisheries Centre
Postal address 1
Postal address 2
Town / City	Vancouver, B.C.
Postal code	V6T 1Z4
State
Country	Canada
Email address	v.christensen@fisheries.ubc.ca
Phone
Fax

Supported platforms	Windows
Other platform
Programming language
Other program language	Visual Basic.NET and C#
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	1992
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status	Active
When did you indicate the 'code development status'?	2020
Model availability	As code
Source code availability (Or provide future intension)	Through web repository
Source web address	http://www.ecopath.org/
Source csdms web address
Program license type	GPL v2
Program license type other
Memory requirements	--
Typical run time	--

Describe input parameters	Basic input requires: Habitat area, Biomass in habitat area, Production/biomass, Consumption/biomass, Ecotrophic efficiency, Production/consumption, Unassimilated consuption, detritus import
Input format	ASCII
Other input format	through GUI
Describe output parameters	Key indices, Mortalities, Consumption, Respiration, Niche overlap, Electivity, Search rates and Fishery forms.
Output format	ASCII
Other output format	.csv
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software
Visualization software needed?	No
If above answer is yes
Other visualization software

Describe processes represented by the model
Describe key physical parameters and equations
Describe length scale and resolution constraints
Describe time scale and resolution constraints
Describe any numerical limitations and issues

Describe available calibration data sets
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing

Do you have current or future plans for collaborating with other researchers?

Is there a manual available?	Yes
Upload manual if available:	Media:Ewe User Guide 6.pdf
Model website if any	http://www.ecopath.org/
Model forum / discussion board	http://www.ecopath.org/

Comments

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Can be coupled with:

Model info

Authors

Villy Christensen

Walters, Pauly

Source code

Model citations

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Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
Christensen, Villy; Walters, Carl J; 2004. Ecopath with Ecosim: methods, capabilities and limitations. Ecological Modelling, 172109–139. 10.1016/j.ecolmodel.2003.09.003	closed	2004	a module overview describing a module	1946