Results of all QA/QC Exercises
for Acadian Redfish, Sebastes fasciatus

Sebastes fasciatus


Christine Kircun (CK) has been working with Acadian Redfish since 2012. Sectioned otoliths are viewed with transmitted light, except for small fish (<20 cm) which are cut in half and viewed with reflected light.

In tests where agreement is below 90%, bias indicates either the P-value of a Bowker’s test or ‘n/s’ (test not significant at the α = 0.05 level).

Sample Source Test Type Date Completed Age Reader Number Aged Number Tested CV (%) Agreement (%) Bias
2018 Autumn Survey (201804) Precision 6/2019 CK 570 101 1.41 80.2 n/s
2017 Commercial Samples (Q1-4) Precision 12/2018 CK 514 98 3.26 49.0 n/s
2017 Autumn Survey (201704) Precision 6/2018 CK 321 67 1.81 71.6 n/s
2016 Autumn Survey (201604) Precision 1/2018 CK 925 100 2.70 70.0 n/s
2015 Autumn Survey (201504) Precision 10/2017 CK 984 99 1.40 80.8 n/s
2014 Autumn Survey (201404) Precision 3/2016 CK 897 97 2.24 71.1 n/s
2013 Autumn Survey (201304) Precision 2/2015 CK 946 98 2.14 74.5 n/s
2012 Autumn Survey (201204) Precision 8/2014 CK 1175 101 2.99 62.4 n/s
2011 Autumn Survey (201105) Precision 4/2014 CK* 827 97 2.36 71.1 n/s
2010 Autumn Survey (201004) Precision 2/2013 CL 862 100 3.16 75.0 n/s
2009 Autumn Survey (200904) Precision 7/2012 CL 1023 120 3.33 74.2 n/s
2008 Autumn Survey (200807) Precision 3/2012 CL 982 98 2.58 73.5 n/s
2007 Autumn Survey (200709) Precision 7/2008 JB 741 113 0.67 89.4 n/s
2006 Autumn Survey (200610) Precision 2/2007 JB 853 108 1.17 84.3 n/s
2005 Autumn Survey (200510) Precision 1/2007 JB 794 106 1.23 84.9 n/s
2004 Autumn Survey (200407) Calibration 1/2007 JB -- 140 1.15 86.4 n/s
2004 Autumn Survey (200407) Precision 3/2005 JB 867 142 0.99 89.4 n/s

*CL married to become CK in late 2013.


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