Results of winter flounder age-reader precision test against randomly selected samples from the 2004 NEFSC autumn survey (SNE stock) and the 2005 NEFSC spring survey (GOM stock). (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: Winter Flounder Test Type: Precision
Sample Source: 2004 Autumn Survey (200407) &
2005 Spring Survey (200503) 		Stock Area: Southern New England (200407) &
Gulf of Maine (200503)
Age Structure: Otoliths Age Reader: JB
Date Completed: August 2005 Sample Size: 110
CV: 1.59% Agreement: 93.6%
Bowker's test: Not applicable


A. Age-Bias Plot

Winter Flounder Age-Bias Plot

B. Age-Frequency Table

Prod Test Age
Age 0 1 2 3 4 5 6 7 8 9 Total
Total 11 36 29 17 10 3 3 1 110
0
1 11 11
2 34 3 37
3 2 26 1 29
4 16 16
5 10 1 11
6 2 2
7 3 3
8
9 1 1


C. Results Summary

Prod Age N N Agreed Percent Agreed Average Test Age
1 11 11 100 % 1.00
2 37 34 92 % 2.08
3 29 26 90 % 2.97
4 16 16 100 % 4.00
5 11 10 91 % 5.09
6 2 2 100 % 6.00
7 3 3 100 % 7.00
8
9 1 1 100 % 9.00


www.nefsc.noaa.gov
Search
Link Disclaimer
webMASTER
Privacy Policy
 (Modified May. 14 2009)