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Using Ecopath Modeling for Analysis and Management of Estuarine Food Webs

Source: (23 Aug. 2004)
This workshop will be based on the use of the ecological software suite Ecopath with Ecosim (EwE) that is finding widespread use throughout the world for ecosystem-based management of fisheries. EwE has the following main components: Ecopath - a static, mass-balanced snapshot of the system; Ecosim - a time dynamic simulation module for policy exploration; Ecospace - a spatial and temporal dynamic module primarily designed for exploring impact and placement of protected areas; and Ecotrace - for tracking accumulation of persistent pollutants through the food web. EwE is being used to address ecological questions; evaluate ecosystem effects of fishing; explore management policy options; evaluate impact and placement of marine protected areas; assess bioaccumulation through the food web; and to evaluate the relative effect of fisheries and environmental changes to mention some key areas.

Manuscripts (available for download at the publication page of
* Pauly, Christensen and Walters. Ecopath, Ecosim and Ecospace as tools for evaluating ecosystem impacts of fisheries
* Christensen and Walters. Ecopath with Ecosim: methods, capabilities and limitations
* Christensen, Walters and Pauly: Ecopath with Ecosim: A User's Guide
* Software: Ecopath with Ecosim (PCs only); available free-of-charge from Can be mailed to participants on request (; Bring notebook PC (Win 98/ME/NT/2000/XP) if possible, preferably with network or wireless cards.
* Participation is limited to 25 participants and course fee is $100.

Location:   NOAA Fisheries Laboratory, Building 216, Galveston, Texas, USA
Dates:   November 30 - December 3, 2004
Contact Information:   Mr. Steven Johnson, GBNEP
Phone: +1 281-316-3005

Home Page URL:

Keywords:   Estuary, Ecosystem, Modeling, Management, Fishery, Software

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