1. TDW-11: 24-28th April 2017, Noumea, New Caledonia
From bioeconomics to bycatch
A few examples of the current use of WCPFC-collected data in national analyses
TDW-11: th April 2017, Noumea, New Caledonia

2. Uses of data for purposes OTHER than Stock Assessment
I am part of the Stock Assessment and Modeling (SAM) team but I don’t do stock assessment
Therefore, no Stock Assessment, Harvest Control Rule, Nemuro or Majuro plots
The SAM section also employs (2) National Scientists and a Bioeconomist
Examples in this talk are from a broad array of analyses of the type done by these non-stock assessment scientists

3. Three categories of analyses
National Reports
Issue-Specific National Reports – analysis on topical items, for all countries (if relevant)
Web Country Reports
In-country visits
Bioeconomic analyses
Tuna and shark management plans
Special requests
Use of observer sample data to identify FAD- association of purse seine sets
Assistance in determination of MSC compliance or conditions for certification

4. Issue-Specific National Reports
Quantification of nearshore fishing
Factors affecting longline CPUE
Seasonality and value of bycatch

5. Issue-Specific National Reports
Effect of El Nino on tuna catch rates
Seasonal cycle in bycatch
Level of fishing effort and observer coverage

6. Web Country reports

7. Web Country reports
Size frequency
Catch by species
Fate of bycatch

8. In country visits – Bioeconomic analysis
This is the “teaching” version

9. In country visits – Bioeconomic analysis
Maximum Economic Yield and Breakeven
User defined variables (costs and prices) are input
Resultant levels of effort (hooks, days, vessels) are output.
Users keep the tool for use in what-if type discussions

10. In country visits – Tuna/shark mgmt. plans

11. In country visits – Tuna/shark mgmt. plans
Assist FFA in developing Shark Management Plans for national legislation implementation

12. Special requests – FAD association
Composition of FAD sets
Location of FAD sets
Model prediction error
Other data used in prediction model
Bycatch species and catch rates
Size distribution of tuna

13. Special requests – MSC compliance
Increasing number of fisheries being evaluated for Marine Stewardship Council “stamp” of sustainability
SPC is consulted as data managers to evaluate many aspects of initial, and re-evaluations, of requirements for certification
Level of non-tuna catch
Handling of SSIs
Tracking of FAD catches

14. In conclusion All my work requires data collected by others.
The accuracy, and ultimate impact, of my analyses are directly affected by the quality of the data.
Therefore, error checking is just as important as the initial data collection; bad data can be more misleading than no data
Have a data analysis need? Invite me to your country!