FAO Fisheries Circular No.947
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
by
Tony J. PITCHER
Fisheries Centre
University of British Columbia
Vancouver
Canada
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 1999
| The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country territory city or area or of its authorities or concerning the delimitation of its frontiers or boundaries. |
ISSN 0429-9329
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© FAO 1999
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PREPARATION OF THIS DOCUMENT
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Introduction
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Methods and the Philosophy of Rapfish
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Rapfish scope: definition and scope of attributes
Fixed reference points
Rapfish scope: definition of fisheries Ordination method for Rapfish
Random reference points
Estimating loading of attributes on the Rapfish ordination axes
Clustering the ordination
Principles of Rapfish
Summary of Rapfish Procedure
Published Rapfish Analyses
Validation of the Rapfish technique using simulated fishery data
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Testing monotonicity
Simulated trajectories
Superimposing one Rapfish plot on another
Conclusions
Leverage of individual attributes on Rapfish ordinations
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Representing the results of Rapfish ordinations
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Examples of ways of presenting Rapfish results
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Rapfish and the Code of Conduct for Responsible Fisheries
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Scoring overall compliance with the aims of the Code of ConductChecklist
Extraction of attributes under Article 7
Article 2 - the Code objectives
Sub-fields for the Code Rapfish field
Questions for the Code Rapfish fields
Example of a Rapfish analysis from Canadian fisheries
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Data for the fisheries evaluated
Results and discussion: ordination plots
Overall analysis using kite diagrams and examples of
hierarchical extraction of information
Analysis of status under the Code of Conduct
Analysis of rankings
Conclusions
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Acknowledgements
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References
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Annex
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Table 1. Attributes used in Rapfish analyses
Table 2. Summary and notes on Code of Conduct Article 7 clauses
Table 3. Evaluation fields and draft questions for Rapfish evaluation of Code of Conduct
Table 4. Sources of information for Canadian fisheries
Table 5. Draft scores for Canadian fisheries in Rapfish evaluations
Table 6. Draft scores for Canadian fisheries in a Code of Conduct Rapfish evaluation
Table 7. Results of Rapfish ordinations on Canadian fisheries