Results of all QA/QC Exercises
for Haddock, Melanogrammus aeglefinus

Melanogrammus aeglefinus


Initials for each age reader are given. All samples were collected by the Northeast Fisheries Science Center (NEFSC) except where indicated otherwise. Stock indicates which stock area samples were taken from, Georges Bank (GB) or Gulf of Maine (GOM); if not specified, samples were from both areas combined. In precision 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 StockTest Type Date Completed Age Reader Number Aged Number Tested CV (%) Agreement (%) Bias
Haddock Reference Collection GB Accuracy 7/2018 SJS -- 57 2.82 89.5 n/a
2018 Spring Survey (201802)   Precision 6/2018 SJS 1475 100 0.48 98.0  
2018 Canadian (DFO) Spring Survey (VEN2018002) GB Exchange Spring 2018 SJS vs. DK -- 76 0.69 96.1  
2018 Canadian (DFO) Commercial Samples (Q1) GB Exchange Spring 2018 SJS vs. DK -- 23 1.71 91.3  
2017 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2018 SJS vs. DK -- 62 0.38 96.8  
2017 Commercial Samples (Q1-2) GB Exchange Spring 2018 SJS vs. DK -- 129 1.89 85.3 0.003
2017 Autumn Survey (201704) GB Exchange Spring 2018 SJS vs. DK -- 107 1.42 91.6  
2017 Commercial Samples (Q4)   Precision 3/2018 SJS 1157 100 1.47 90.0  
2017 Commercial Samples (Q3)   Precision 3/2018 SJS 1088 99 0.60 96.0  
2017 Autumn Survey (201704)   Precision 3/2018 SJS 767 100 0.47 99.0  
2017 Commercial Samples (Q2)   Precision 1/2018 SJS 1701 99 0.59 94.9  
2017 Commercial Samples (Q1)   Precision 10/2017 SJS 1601 95 1.37 91.6  
2017 Canadian (DFO) Spring Survey (TEL2017002) GB Exchange Spring 2017 SJS vs. DK -- 72 3.09 84.7 n/s
2016 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2017 SJS vs. DK -- 148 0.19 98.0  
2016 Commercial Samples (Q1-2) GB Exchange Spring 2017 SJS vs. DK -- 117 1.53 90.6  
2016 Autumn Survey (201604) GB Exchange Spring 2017 SJS vs. DK -- 154 2.42 89.0 n/s
2017 Spring Survey (201702)   Precision 6/2017 SJS 2551 95 0.00 100.0  
Haddock Reference Collection GB Accuracy 4/2017 SJS -- 56 0.36 98.2  
2016 Commercial Samples (Q4)   Precision 4/2017 SJS 1157 100 0.40 97.0  
2016 Commercial Samples (Q2-3)   Precision 3/2017 SJS 2635 100 0.00 100.0  
2016 Autumn Survey (201604)   Precision 2/2017 SJS 1781 100 1.11 97.0  
2016 Commercial Samples (Q1)   Precision 10/2016 SJS 1556 100 0.51 95.0  
2016 Spring Survey (201602)   Precision 9/2016 SJS 2461 100 0.00 100.0  
Haddock Reference Collection GB Accuracy 6/2016 SJS -- 57 3.44 87.7  
2015 Commercial Samples (Q1-2) GB Exchange Spring 2016 DK vs. SJS -- 116 1.16 90.5  
2015 Autumn Survey (201504) GB Exchange Spring 2016 DK vs. SJS -- 78 1.50 91.0  
2015 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2016 DK vs. SJS -- 121 2.47 81.8 0.022
2016 Canadian (DFO) Spring Survey (TEL2016002) GB Exchange Spring 2016 DK vs. SJS -- 59 0.00 100.0  
2015 Commercial Samples (Q4)   Precision 4/2016 SJS 1288 100 0.42 97.0  
2015 Commercial Samples (Q3)   Precision 3/2016 SJS 766 99 0.81 93.9  
2015 Autumn Survey (201504)   Precision 1/2016 SJS 1905 100 0.20 99.0  
2015 Commercial Samples (Q2)   Precision 12/2015 SJS 1295 102 0.76 95.1  
2015 Commercial Samples (Q1)   Precision 10/2015 SJS 1789 99 0.48 97.0  
2015 Spring Survey (201502)   Precision 7/2015 SJS 2114 100 0.00 100.0  
2015 Canadian (DFO) Spring Survey (NED2015002) GB Exchange Spring 2015 DK vs. SJS -- 117 1.09 94.0  
2014 Commercial Samples (Q1-2) GB Exchange Spring 2015 DK vs. SJS -- 95 2.71 71.6 n/s
2014 Autumn Survey (201404) GB Exchange Spring 2015 DK vs. SJS -- 105 1.14 94.3  
2014 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2015 DK vs. SJS -- 133 1.47 90.2  
Haddock Reference Collection GB Accuracy 4/2015 SJS -- 57 1.00 93.0  
2014 Commercial Samples (Q4)   Precision 3/2015 SJS 1506 97 0.70 92.8  
2014 Commercial Samples (Q3)   Precision 3/2015 SJS 958 93 1.28 93.6  
2014 Autumn Survey (201404)   Precision 3/2015 SJS 1377 100 0.47 99.0  
2014 Commercial Samples (Q2)   Precision 3/2015 SJS 2121 97 0.09 99.0  
2014 Commercial Samples (Q1)   Precision 2/2015 SJS 1905 95 0.12 97.9  
2014 Spring Survey (201402)   Precision 6/2014 SJS 1943 92 0.22 98.9  
2014 Canadian (DFO) Spring Survey (NED2014002) GB Exchange Spring 2014 DK vs. SJS -- 114 0.47 96.5  
2013 Commercial Samples (Q1-2) GB Exchange Spring 2014 DK vs. SJS -- 88 1.90 84.1 n/s
2013 Autumn Survey (201304) GB Exchange Spring 2014 DK vs. SJS -- 105 0.38 98.1  
2013 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2014 DK vs. SJS -- 66 0.49 95.5  
Haddock Reference Collection GB Accuracy 4/2014 SJS -- 55 1.68 92.7  
2013 Commercial Samples (Q4)   Precision 3/2014 SJS 1596 100 0.16 99.0  
2013 Commercial Samples (Q3)   Precision 3/2014 SJS 850 100 0.16 99.0  
2013 Autumn Survey (201304)   Precision 2/2014 SJS 1556 96 0.49 99.0  
2013 Commercial Samples (Q2)   Precision 2/2014 SJS 1764 97 0.08 99.0  
2013 Commercial Samples (Q1)   Precision 12/2013 SJS 1911 98 0.38 95.9  
Haddock Reference Collection GB Accuracy 7/2013 SJS -- 56 1.69 91.1  
2013 Spring Survey (201302)   Precision 6/2013 SJS 1272 99 0.08 99.0  
2013 Canadian (DFO) Spring Survey (NED2013002) GB Exchange Spring 2013 DK vs. SJS -- 50 1.48 88.0 n/s
2012 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2013 DK vs. SJS -- 150 1.50 90.0  
2012 Commercial Samples (Q1-2) GB Exchange Spring 2013 DK vs. SJS -- 50 3.94 68.0 n/s
2012 Autumn Survey (201204) GB Exchange Spring 2013 DK vs. SJS -- 50 3.09 78.0 n/s
Haddock Reference Collection GB Accuracy 4/2013 SJS -- 57 2.36 93.0  
2012 Commercial Samples (Q4)   Precision 4/2013 SJS 1217 91 0.29 96.7  
2012 Autumn Survey (201204)   Precision 2/2013 SJS 814 62 0.21 98.4  
2012 Commercial Samples (Q3)   Precision 2/2013 SJS 928 97 1.40 90.7  
2012 Commercial Samples (Q2)   Precision 11/2012 SJS 914 97 0.49 96.9  
2012 Commercial Samples (Q1)   Precision 10/2012 SJS 1867 99 0.53 94.9  
2012 Spring Survey (201202)   Precision 8/2012 SJS 1181 100 0.57 98.0  
Haddock Reference Collection GB Accuracy 5/2012 SJS -- 55 2.86 96.4  
2012 Canadian (DFO) Spring Survey (NED2012002) GB Exchange Spring 2012 DK vs. SJS -- 53 1.15 90.6  
2011 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2012 DK vs. SJS -- 48 2.61 85.4 n/s
2011 Commercial Samples (Q1) GB Exchange Spring 2012 DK vs. SJS -- 49 1.68 89.8 n/s
2011 Autumn Survey (201105)   Precision 4/2012 SJS 1301 100 1.24 95.0  
2011 Commercial Samples (Q3-4)   Precision 4/2012 SJS 2440 105 1.04 92.4  
2011 Commercial Samples (Q2)   Precision 3/2012 SJS 2159 93 0.62 91.4  
2011 Commercial Samples (Q1)   Precision 12/2011 SJS 2218 101 0.72 92.1  
Haddock Reference Collection GB Accuracy 8/2011 SJS -- 57 1.35 94.7  
2011 Spring Survey (201102)   Precision 8/2011 SJS 871 105 0.27 99.0  
2011 Canadian (DFO) Spring Survey (NED2011002) GB Exchange Spring 2011 DK vs. SJS -- 61 0.98 95.1  
2010 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2011 DK vs. SJS -- 51 3.22 86.3 n/s
2010 Commercial Samples (Q1-2) GB Exchange Spring 2011 DK vs. SJS -- 50 1.49 88.0 n/s
2010 Autumn Survey (201004) GB Exchange Spring 2011 DK vs. SJS -- 50 4.03 86.0 n/s
2010 Commercial Samples (Q4)   Precision 3/2011 SJS 1893 104 0.15 99.0  
2010 Commercial Samples (Q3)   Precision 3/2011 SJS 1551 104 0.45 95.2  
2010 Autumn Survey (201004)   Precision 1/2011 SJS 1267 110 1.29 99.1  
2010 Commercial Samples (Q2)   Precision 1/2011 SJS 2186 105 0.51 94.3  
2010 Commercial Samples (Q1)   Precision 12/2010 SJS 2957 110 0.18 98.2  
Haddock Reference Collection GB Accuracy 10/2010 SJS -- 57 4.12 87.7 n/a
2010 Canadian (DFO) Spring Survey (NED2010001) GB Exchange Spring 2010 DK vs. SJS -- 55 1.26 92.7  
2009 Autumn Survey (200904) GB Exchange Spring 2010 DK vs. SJS -- 49 3.86 81.6 n/s
2009 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2010 DK vs. SJS -- 47 4.13 76.6 n/s
2009 Commercial Samples (Q1-2) GB Exchange Spring 2010 DK vs. SJS -- 51 4.09 62.7 n/s
Haddock Reference Collection GB Accuracy 5/2010 SJS -- 57 1.18 96.5  
2010 Spring Survey (201001)   Precision 5/2010 SJS 839 100 0.20 99.0  
2009 Commercial Samples (Q4)   Precision 4/2010 SJS 1338 109 0.68 92.7  
2009 Commercial Samples (Q3)   Precision 4/2010 SJS 1437 95 0.07 98.9  
2009 Commercial Samples (Q2)   Precision 3/2010 SJS 1583 100 0.15 98.0  
2009 Autumn Survey (200904)   Precision 1/2010 SJS 727 104 0.45 97.1  
2009 Commercial Samples (Q1)   Precision 10/2009 SJS 1997 100 0.79 95.0  
2009 Spring Survey (200902)   Precision 10/2009 SJS 641 100 1.18 95.0  
Haddock Reference Collection GB Accuracy 9/2009 SJS -- 57 1.35 93.0  
2008 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2009 SJS vs. LVE -- 51 1.48 92.2  
2009 Canadian (DFO) Spring Survey (NED2009841) GB Exchange Spring 2009 SJS vs. LVE -- 54 0.52 98.1  
Haddock Reference Collection GB Accuracy 5/2009 SJS -- 57 0.66 96.5  
2008 Commercial Samples (Q4)   Precision 5/2009 SJS 1731 110 0.27 97.3  
2008 Bigelow Autumn Survey (200812)   Precision 4/2009 SJS 442 53 0.89 98.1  
2008 Albatross Autumn Survey (200807)   Precision 4/2009 SJS 451 38 1.02 92.1  
2008 Commercial Samples (Q3)   Precision 4/2009 SJS 1178 92 0.15 97.8  
2008 Commercial Samples (Q2)   Precision 3/2009 SJS 1722 100 0.07 99.0  
2008 Bigelow Spring Survey (200804)   Precision 2/2009 SJS 493 76 0.00 100.0  
Haddock Reference Collection GB Accuracy 1/2009 SJS -- 60 0.28 96.7  
2008 Commercial Samples (Q1)   Precision 11/2008 SJS 2095 111 0.39 94.6  
2007 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2008 SJS vs. LVE -- 56 0.00 100.0  
2007 Canadian (DFO) Spring Survey (TEM2007685) GB Exchange Spring 2008 SJS vs. LVE -- 55 0.46 96.4  
Haddock Reference Collection GB Accuracy 5/2008 SJS -- 59 1.71 91.5  
2008 Albatross Spring Survey (200803)   Precision 5/2008 SJS 554 74 0.52 94.6  
2007 Commercial Samples (Q4)   Precision 4/2008 SJS 1858 117 0.06 99.1  
2007 Commercial Samples (Q3)   Precision 3/2008 SJS 1729 111 0.31 96.4  
2007 Commercial Samples (Q2)   Precision 2/2008 SJS 1320 110 0.21 97.3  
2007 Commercial Samples (Q1)   Precision 1/2008 SJS 1465 100 0.38 96.0  
2007 Autumn Survey (200709)   Precision 1/2008 SJS 695 77 0.11 98.7  
Haddock Reference Collection GB Accuracy 1/2008 SJS -- 55 1.77 89.1 n/a
2006 Canadian (DFO) Commercial Samples (Q2-4) GB Exchange Spring 2007 SJS vs. LVE -- 55 1.25 90.9  
2006 Canadian (DFO) Spring Survey (NED2006001) GB Exchange Spring 2007 SJS vs. LVE -- 48 0.69 93.8  
2006 Commercial Samples (Q1-2) GB Exchange Spring 2007 SJS vs. LVE -- 58 3.73 69.0 n/s
2006 Autumn Survey (200610) GB Exchange Spring 2007 SJS vs. LVE -- 52 1.27 92.3  
Haddock Reference Collection GB Accuracy 5/2007 SJS -- 55 0.60 96.4  
2007 Spring Survey (200703)   Precision 5/2007 SJS 673 75 0.10 98.7  
2006 Commercial Samples (Q4)   Precision 4/2007 SJS 1465 90 0.47 95.6  
2006 Commercial Samples (Q3)   Precision 3/2007 SJS 1481 79 1.06 88.6 n/s
2006 Commercial Samples (Q2)   Precision 3/2007 SJS 2012 105 0.48 94.3  
2006 Commercial Samples (Q1)   Precision 1/2007 SJS 1881 104 0.35 96.2  
2006 Autumn Survey (200610)   Precision 1/2007 SJS 864 80 0.35 98.8  
Haddock Reference Collection GB Accuracy 12/2006 SJS -- 54 6.22 79.6 n/a
2005 Commercial Samples (Q4) GOM Precision 7/2006 SJS 560 61 3.43 73.8 n/s
Haddock Reference Collection GB Accuracy 5/2006 SJS -- 51 1.12 92.2  
2006 Spring Survey (200604)   Precision 5/2006 SJS 639 64 0.63 96.9  
2005 Commercial Samples (Q4) GB Precision 4/2006 SJS 808 50 1.44 88.0 n/s
2005 Commercial Samples (Q3)   Precision 3/2006 SJS 1185 55 1.82 90.9  
2005 Commercial Samples (Q2)   Precision 3/2006 SJS 571 53 2.24 84.9 n/s
2005 Commercial Samples (Q1)   Precision 2/2006 SJS 741 55 1.47 85.5 n/s
2005 Autumn Survey (200510)   Precision 1/2006 SJS 957 100 1.25 95.0  
Haddock Reference Collection GB Accuracy 1/2006 SJS -- 55 1.03 96.4  
2004 Canadian (DFO) Commercial Samples (Q3-4) GB Exchange Spring 2005 SJS vs. LVE -- 50 0.42 96.0  
2004 Canadian (DFO) Spring Survey (TEM2004004) GB Exchange Spring 2005 SJS vs. LVE -- 45 0.30 95.6  
Haddock Reference Collection GB Accuracy 6/2005 SJS -- 107 1.26 93.5  
2005 Spring Survey (200503)   Precision 5/2005 SJS 635 76 0.89 96.1  
2004 Commercial Samples (Q4)   Precision 4/2005 SJS 395 60 0.44 95.0  
2004 Commercial Samples (Q3)   Precision 4/2005 SJS 355 44 0.25 97.7  
2004 Commercial Samples (Q2)   Precision 3/2005 SJS 698 55 0.94 90.9  
2004 Commercial Samples (Q1)   Precision 1/2005 SJS 1301 56 0.69 92.9  
2004 Autumn Survey (200407)   Precision 1/2005 SJS 829 102 0.71 95.1  
2003 Commercial Samples (Q4) GOM Precision 12/2004 SJS 473 49 1.72 85.7 n/s
2003 Commercial Samples (Q3) GOM Precision 12/2004 SJS 754 50 1.51 88.0 n/s
2003 Commercial Samples (Q2) GOM Precision 11/2004 SJS 150 30 0.68 93.3  
2003 Commercial Samples (Q1) GOM Precision 11/2004 SJS 442 48 1.09 91.7  
2004 Spring Survey (200402) GOM Precision 9/2004 SJS 75 50 0.17 98.0  
2003 Autumn Survey (200306) GOM Precision 9/2004 SJS 506 48 0.00 100.0  
2003 Spring Survey (200303) GOM Precision 9/2004 SJS 304 49 1.50 93.9  
2002 Autumn Survey (200209) GOM Precision 9/2004 SJS 370 50 0.00 100.0  
Haddock Reference Collection GB Accuracy 8/2004 SJS -- 50 2.34 90.0  
2004 Spring Survey (200402) GB Precision 5/2004 SJS 438 65 0.68 95.4  
2003 Autumn Survey (200306) GB Precision 4/2004 SJS 250 48 0.75 95.8  
2003 Commercial Samples (Q4) GB Precision 4/2004 SJS 410 35 2.07 88.6 n/s
2003 Commercial Samples (Q3) GB Precision 4/2004 SJS 392 33 2.58 75.8 n/s
2003 Commercial Samples (Q2) GB Precision 4/2004 SJS 632 40 1.71 87.5 n/s
2003 Commercial Samples (Q1) GB Precision 3/2004 SJS 268 34 2.20 82.4 n/s
2002 Canadian (DFO) Commercial Samples (Q3-4) GB Exchange Winter 2003-2004 NM vs. LVE -- 48 2.90 83.3 n/s
2002 Canadian (DFO) Commercial Samples (Q3-4) GB Exchange Winter 2003-2004 SJS vs. LVE -- 48 2.59 87.5 n/s
2003 Canadian (DFO) Spring Survey (NED2003002) GB Exchange Winter 2003-2004 NM vs. LVE -- 48 8.33 62.5 0.035
2003 Canadian (DFO) Spring Survey (NED2003002) GB Exchange Winter 2003-2004 SJS vs. LVE -- 48 5.74 72.9 n/s
2003 Spring Survey (200303) GB Exchange Winter 2003-2004 SJS vs. LVE -- 50 1.74 86.0 n/s
2001 Autumn Survey (200109) GB Exchange Winter 2003-2004 NM vs. LVE -- 50 4.30 84.0 n/s

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