1. SESSION 11 Observer Data Auditing
Seventh Tuna Data Workshop (TDW-7) April 2013 SPC, Noumea, New Caledonia

2. Presentation Outline Auditing focus on Observer Data Management System
Observer Data Auditing Processes
TUBS Data Quality Queries
Plan Activities

3. Observer Data Management
Observer data is so dynamic in nature compared to other fisheries data i.e. Logsheet, Port Sampling, Unloading and Transhipment etc.
Increased in volume of observer data due to 100% coverage of PS fisheries and 5% coverage of LL fisheries in WCPO.
Types of Data Collected by Observers
Trip Information and Vessel Characteristics
Electronic and Gear Characteristics
Fish Storage and Transfer Information
Crew Information
Set & Haul Information, Environmental Conditions & School Association
Catch Composition and Length Frequency Measurement
Species of Special Interest (marine mammals and sea turtles)
Vessel and Aircraft Sightings
FAD & Floating Object Information
Pollution Report
(as per slide)

4. Observer Data Auditing Processes
Debriefing Process
Observer Data Registry 2 1
Missing Data and Re-scan
Observer Workbook /
Trip Report & Journal
Correct and Highlight Errors
Data Quality Audit Tools 4
Data Validation & Control Check
TUBS Data Entry Control Checks 3
TUBS
Run DQ Queries
Data Modification 6
Check Audit Trail and Report for errors.
Post-entry Audit Trails & Analysis Reports 5
Correct Errors in TUBS

5. TUBS Data Entry Control Checks
Data entry (code lookup, audit ranges)
Check of key fields (mandatory fields)
Control totals checking (total fileds)
Position checking (trip track and activity positions) compare to VMS data
More comprehensive FIELD range-checking (e.g. species catch and average length)
The system will offer guidelines for data entry
(as per slide)

6. TUBS Control Checks
(as per slide)

7. OBS Trip Track Check
(as per slide)

8. Audit Trail and Analysis Reports
(as per slide)

9. TUBS Data Quality Queries
Duplicate observer trips in TUBS
Overlapping observer trips
In-land vessel fishing activity
Observer trip NOT in correct EEZ (national fleets)
Observer trip day NOT equal observed days.
Observer trip WITHOUT any observed days.
Observer trip WITHOUT EEZ Code for each vessel activity
Observer trip vessel activity position is NULL
Length frequency measurement > max species length
Length frequency WITHOUT brail and measurement details
Observer trips with SET duration > 4 hours
Observer trips with SET Catch WITHOUT length frequency measurements etc..

10. Plan Activities Perform continuous auditing on TUBS
Develop an audit workbook and procedures for auditing in-country observer data
Audit TUBS data from regional & national programmes who have used TUBS on trial i.e. PGOB, SBOB and FFA