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Reconnaissance (1:20,000)
Fish and Fish Habitat Inventory:
Users Guide to the Fish and
Fish Habitat Assessment Tool (FHAT20)

Prepared by
BC Fisheries
Information Services Branch
for the
Resources Inventory Committee

May 2000
Version 1.0

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Table of Contents

CIP
Disclaimer
Abstract
Acknowledgements
1.0 Introduction
2.0 Installation and general operating guidelines

3.0 Physical Predictions

4.0 Fish Groups

5.0 Obstructions
6.0 Modelling Fish Range in the Watershed
7.0 Modelling Fish Habitat Capability

8.0 FPC Stream Classification
9.0 Editing model results

10.0 Controlling FHAT20 by manipulating tables and files

11.0 References
Appendix I: Theoretical Background of Multivariate Kernel Estimation

List of Figures

  1. The relationship between FDIS data, various modelling steps performed by the user in FHAT20, and the majority of the FHAT20 model database (MODEL.MDB) where model data, rules, and results are saved
  2. Schematic showing the procedure to import data from FDIS into FHAT20
  3. The error reporting dialogue box displays a record of errors and corrections made to the FHAT20 model database
  4. The main FHAT20 dialogue box used to display and query reach-specific data and model results
  5. The search results dialogue box displays data and results for reaches selected on the map
  6. The legend editor dialogue box is used to edit the map display of data and predicted variables
  7. Schematic showing the relationship among modelling steps in FHAT20
  8. The operational tracking dialogue box displays the status of modelling procedures and the date/time the procedures were run
  9. The channel morphology dialogue box is used to make reach-specific physical predictions, such as channel and wetted widths
  10. The outlier dialogue box is used to display site-specific physical data used in channel morphology modelling, allowing users to exclude specific data from the modelling procedures
  11. The stratification dialogue box is used to review and create rules that stratify data used to develop physical prediction models
  12. The non-visible channel dialogue box is used to predict the probability that unsampled reaches will be not be visible channels
  13. The fish group dialogue box is used to review and create new fish groups used in FHAT20 modelling procedures
  14. The obstruction editor dialogue box is used to display, edit, and add migration barriers to the FHAT20 model database
  15. The fish range dialogue box is used to review and edit rules that predict fish group range in the modelled watershed
  16. Relationship between habitat and fish abundance
  17. The fish habitat capability dialogue box is used to predict reach-specific habitat capability and probability of fish presence
  18. Schematic showing how the probability of fish presence (PoP) is computed for each reach as a function of modelled upstream distribution limits predicted by fish distribution rules and observed fish occurrences
  19. Schematic showing how the probability of fish presence (PoP) and fish distribution is computed for stream and lake reaches in relation to fish bearing lakes
  20. The stream classification dialogue box is used to classify reaches into S1-S6 FPC stream classes
  21. Schematic showing how stream classification predictions are computed in FHAT20
  22. Schematic showing how continuous probability of fish presenceis computed from the probability of fish presence variable calculated in fish habitat capability model
  23. The edit results dialogue box is used to modify FHAT20 predictions based on a set of user-defined rules
List of Tables
  1. Description of some of the fields in the WSCODE_LOOKUP table
  2. Description of error codes reported in WSCODE_LOOKUP
  3. Organisation of variables (data and model results) that can be displayed in the FHAT20 Map Interface


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