Results of butterfish calibration test using randomly selected samples from the 1984 NEFSC spring survey, the 1984 NEFSC autumn survey, and all quarters of the 1984 NEFSC commercial samples. Production ages were completed in 1984. (A) Age-bias plot, showing the average age attained during the test for fish of each production age. Error bars indicate 95% confidence intervals. (B) Age-frequency table, showing the test ages across the top and the production ages on the left. Numbers in the shaded boxes indicate agreement between the two ages. Numbers above this diagonal indicate fish which were over-aged during the test; those below the shaded boxes were under-aged. Total age frequencies are given by age for both the test and production ages. (C) Results summary, indicating results of the test for each production age.
| Species: |
Butterfish
| Test Type: |
Calibration
| | Sample Source: |
1984 Spring Survey (198402), 1984 Autumn Survey (198405), and 1984 Commercial Samples (all quarters)
| Age Reader: |
LD-W
| | Date Completed: |
January 2009
| Sample Size: |
769
| | CV: |
2.74%
| Agreement: |
93.4%
| | Bowker's test: |
Not applicable
|
|
