Results of Atlantic herring inter-reader precision test
against randomly selected samples from the 2016 NEFSC spring survey.
(A) Agreement plot, showing both the production and test ages. A small amount of noise was added to the data to improve visibility of overlapping data points.
(B) Age-frequency table, showing each reader's ages. Numbers in the shaded boxes indicate agreement between the two readers. Numbers above this diagonal indicate fish which were given higher ages by BJ; those below the shaded boxes were given higher ages by KR. Total age frequencies are given by age for both readers. (C) Results summary, indicating KR's results relative to each of BJ's ages. .
2016 Spring Survey (201602)
KR vs. BJ
*KR will become the herring age reader after BJ's retirement.