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Model Report

Food and Gill Exchange of Toxic Substances

Last Revision Date: 11/05/2009 View as PDF
General Information Back to Top
Model Abbreviated Name:

Model Extended Name:

Food and Gill Exchange of Toxic Substances
Model Overview/Abstract:
Food and Gill Exchange of Toxic Substances (FGETS) is a FORTRAN simulation model that predicts temporal dynamics of fish whole body concentration (ug chemical/(g live weight fish)) of non ionic, non metabolized, organic chemicals that are bioaccumulated from either: (a) water only - the predominant route of exchange during acute exposures, or (b) water and food jointly - characteristic of chronic exposures. FGETS calculates time to reach the chemical's lethal activity by assuming the chemical elicits its pharmacological response through a narcotic mode of action. FGETS considers both the biological attributes of the fish and the physico-chemical properties of the chemical that determine diffusive exchange across gill membranes and intestinal mucosa. Important biological characteristics addressed by model are the fish's gill and intestinal morphometry, the body weight of the fish, and fractional aqueous, lipid, and structural organic composition.
Keywords: aquatic biology, assessment, chemistry, environmental effects, metals, monitoring, NPS related, point source(s), test/analysis, toxicity
Model Technical Contact Information:
Agency Contact:
Dr. Craig Barber
Model Homepage: http://www.epa.gov/ceampubl/fchain/fgets/
Substantive Changes from Prior Version: N/A
Plans for further model development: No plans, model has been superseded by Bioaccumulation and Aquatic System Simulator (BASS)
BASS Homepage
CREM Models Knowledge Base Listing

User Information Back to Top
Technical Requirements
Compatible Operating Systems
16-bit MS-DOS
Download Information
Using the Model
Basic Model Inputs
(Partial list): physicochemical properties of the chemical, chemical exposure time series, fish name – see the manual.
User Support
User's Guide Available?
Availability of User Support

Model Science Back to Top
Summary of Model Structure and Methods
See: http://www.epa.gov/ceampubl/fchain/fgets/
Model Evaluation
See: http://www.epa.gov/ceampubl/fchain/fgets/
Key Limitations to Model Scope
See: http://www.epa.gov/ceampubl/fchain/fgets/
Case Studies
See: http://www.epa.gov/ceampubl/fchain/fgets/

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