Results of witch flounder inter-reader precision test
against randomly selected samples from the 2009 NEFSC spring survey.
(A) Agreement plot, showing the ages attained by each reader. A small amount of noise was added to the data to improve visibility of overlapping data points. (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 given higher ages by JB; those
below the shaded boxes were given higher ages by SE. Total age
frequencies are given by age for both readers. (C) Results summary, indicating SE's results
relative to each of JB's ages.