Results of all QA/QC Exercises
for Atlantic Mackerel, Scomber scombrus

Scomber scombrus


Initials for each age reader are given. All samples were collected by the NEFSC. Bowker’s test results either show the P-value, ‘n/s’ (not significant at the α = 0.05 level), or are left blank where the test was not applicable.

Sample Source Test Type Date Completed Age Reader Sample Size CV (%) Agreement (%) Bowker's test
2009 Spring Survey (200902) Precision 9/2009 SS 100 0.00 100.0  
2008 Commercial Samples Precision 9/2009 SS 172 0.26 97.7  
2008 DFO Commercial Samples (Q2) Exchange Spring 2009 NS vs. FG 100 0.50 96.0  
2008 NEFSC Commercial Samples (Q1) Exchange Spring 2009 NS vs. FG 99 1.06 91.9  
2002 Spring Survey (200202), 2002 Commercial Samples (Q4), and 2004 Commercial Samples (Q2) Precision 10/2005 NS 100 0.68 95.0  


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