Data Processing (SPRFMO)

Members send data to the Secretariat
- Catch data submitted officially to secretariat
- Catch data also submitted via ALK templates
  - Estimate on catches of the current year based on projection. Projection informed by members, TAC and recent practice
  - Recent practice not strictly defined, depends on available information
- Composition data submitted in ALK templates, both for fisheries as research cruises
  - Manual check on quality / missing variables of the sheets
  - Visualisation of the data in these ALK sheets
  - Linking Length-Frequency data to ALK data Presentation
  - Automated workflow reading all historic files, new ALK from Chile to produce updated catch-at-age is almost finished
- CPUE
  - Each individual fleet does their own standardisation process, details found in the technical annex and WDs
- Research surveys
  - Information from research surveys is submitted via the SURVEY template
  - Manual check on quality / missing variables of the sheets
These data are stored on the Teams Data Repo

Exercise

Take a completed ALK from Chile and an incomplete ALK from China and convert the lengths in the Chinese set to catch numbers-at-age by quarter and catch weight-at-age by quarter.
The complete ALK can be found here
The incomplete ALK can be found here