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 NEFSC unless otherwise noted. 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. 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 StockTest Type Date Completed Age Reader Sample Size CV (%) Agreement (%) Bowker's test
2009 Commercial Samples (Q1)   Precision 10/2009 SS 100 0.79 95.0  
2009 Spring Survey (200902)   Precision 10/2009 SS 100 1.18 95.0  
Haddock Reference Collection GB Accuracy 9/2009 SS 57 1.35 93.0  
2008 DFO Commercial Samples (Q2-4) GB Exchange Spring 2009 SS vs. LVE 51 1.48 92.2  
2009 DFO Spring Survey (NED2009841) GB Exchange Spring 2009 SS vs. LVE 54 0.52 98.1  
Haddock Reference Collection GB Accuracy 5/2009 SS 57 0.66 96.5  
2008 Commercial Samples (Q4)   Precision 5/2009 SS 110 0.27 97.3  
2008 Bigelow Autumn Survey (200812)   Precision 4/2009 SS 53 0.89 98.1  
2008 Albatross Autumn Survey (200807)   Precision 4/2009 SS 38 1.02 92.1  
2008 Commercial Samples (Q3)   Precision 4/2009 SS 92 0.15 97.8  
2008 Commercial Samples (Q2)   Precision 3/2009 SS 100 0.07 99.0  
2008 Bigelow Spring Survey (200804)   Precision 2/2009 SS 76 0.00 100.0  
Haddock Reference Collection GB Accuracy 1/2009 SS 60 0.28 96.7  
2008 Commercial Samples (Q1)   Precision 11/2008 SS 111 0.39 94.6  
2007 DFO Commercial Samples (Q2-4) GB Exchange Spring 2008 SS vs. LVE 56 0.00 100.0  
2007 DFO Spring Survey (TEM2007685) GB Exchange Spring 2008 SS vs. LVE 55 0.46 96.4  
Haddock Reference Collection GB Accuracy 5/2008 SS 59 1.71 91.5  
2008 Albatross Spring Survey (200803)   Precision 5/2008 SS 74 0.52 94.6  
2007 Commercial Samples (Q4)   Precision 4/2008 SS 117 0.06 99.1  
2007 Commercial Samples (Q3)   Precision 3/2008 SS 111 0.31 96.4  
2007 Commercial Samples (Q2)   Precision 2/2008 SS 110 0.21 97.3  
2007 Commercial Samples (Q1)   Precision 1/2008 SS 100 0.38 96.0  
2007 Autumn Survey (200709)   Precision 1/2008 SS 77 0.11 98.7  
Haddock Reference Collection GB Accuracy 1/2008 SS 55 1.77 89.1  
2006 DFO Commercial Samples (Q2-4) GB Exchange Spring 2007 SS vs. LVE 55 1.25 90.9  
2006 DFO Spring Survey (NED2006001) GB Exchange Spring 2007 SS vs. LVE 48 0.69 93.8  
2006 Commercial Samples (Q1-2) GB Exchange Spring 2007 SS vs. LVE 58 3.73 69.0 n/s
2006 Autumn Survey (200610) GB Exchange Spring 2007 SS vs. LVE 52 1.27 92.3  
Haddock Reference Collection GB Accuracy 5/2007 SS 55 0.60 96.4  
2007 Spring Survey (200703)   Precision 5/2007 SS 75 0.10 98.7  
2006 Commercial Samples (Q4)   Precision 4/2007 SS 90 0.47 95.6  
2006 Commercial Samples (Q3)   Precision 3/2007 SS 79 1.06 88.6 n/s
2006 Commercial Samples (Q2)   Precision 3/2007 SS 105 0.48 94.3  
2006 Commercial Samples (Q1)   Precision 1/2007 SS 104 0.35 96.2  
2006 Autumn Survey (200610)   Precision 1/2007 SS 80 0.35 98.8  
Haddock Reference Collection GB Accuracy 12/2006 SS 54 6.22 79.6  
2005 Commercial Samples (Q4) GOM Precision 7/2006 SS 61 3.43 73.8 n/s
Haddock Reference Collection GB Accuracy 5/2006 SS 51 1.12 92.2  
2006 Spring Survey (200604)   Precision 5/2006 SS 64 0.63 96.9  
2005 Commercial Samples (Q4) GB Precision 4/2006 SS 50 1.44 88.0 n/s
2005 Commercial Samples (Q3)   Precision 3/2006 SS 55 1.82 90.9  
2005 Commercial Samples (Q2)   Precision 3/2006 SS 53 2.24 84.9 n/s
2005 Commercial Samples (Q1)   Precision 2/2006 SS 55 1.47 85.5 n/s
2005 Autumn Survey (200510)   Precision 1/2006 SS 100 1.25 95.0  
Haddock Reference Collection GB Accuracy 1/2006 SS 55 1.03 96.4  
2004 DFO Commercial Samples (Q3-4) GB Exchange Spring 2005 SS vs. LVE 50 0.42 96.0  
2004 DFO Spring Survey (TEM2004004) GB Exchange Spring 2005 SS vs. LVE 45 0.30 95.6  
Haddock Reference Collection GB Accuracy 6/2005 SS 107 1.26 93.5  
2005 Spring Survey (200503)   Precision 5/2005 SS 76 0.89 96.1  
2004 Commercial Samples (Q4)   Precision 4/2005 SS 60 0.44 95.0  
2004 Commercial Samples (Q3)   Precision 4/2005 SS 44 0.25 97.7  
2004 Commercial Samples (Q2)   Precision 3/2005 SS 55 0.94 90.9  
2004 Commercial Samples (Q1)   Precision 1/2005 SS 56 0.69 92.9  
2004 Autumn Survey (200407)   Precision 1/2005 SS 102 0.71 95.1  
2003 Commercial Samples (Q4) GOM Precision 12/2004 SS 49 1.72 85.7 n/s
2003 Commercial Samples (Q3) GOM Precision 12/2004 SS 50 1.51 88.0 n/s
2003 Commercial Samples (Q2) GOM Precision 11/2004 SS 30 0.68 93.3  
2003 Commercial Samples (Q1) GOM Precision 11/2004 SS 48 1.09 91.7  
2004 Spring Survey (200402) GOM Precision 9/2004 SS 50 0.17 98.0  
2003 Autumn Survey (200306) GOM Precision 9/2004 SS 48 0.00 100.0  
2003 Spring Survey (200303) GOM Precision 9/2004 SS 49 1.50 93.9  
2002 Autumn Survey (200209) GOM Precision 9/2004 SS 50 0.00 100.0  
Haddock Reference Collection GB Accuracy 8/2004 SS 50 2.34 90.0  
2004 Spring Survey (200402) GB Precision 5/2004 SS 65 0.68 95.4  
2003 Autumn Survey (200306) GB Precision 4/2004 SS 48 0.75 95.8  
2003 Commercial Samples (Q4) GB Precision 4/2004 SS 35 2.07 88.6 n/s
2003 Commercial Samples (Q3) GB Precision 4/2004 SS 33 2.58 75.8 n/s
2003 Commercial Samples (Q2) GB Precision 4/2004 SS 40 1.71 87.5 n/s
2003 Commercial Samples (Q1) GB Precision 3/2004 SS 34 2.20 82.4 n/s
2002 DFO Commercial Samples (Q3-4) GB Exchange Winter 2003-2004 NM vs. LVE
SS vs. LVE
48 2.90
2.59
83.3
87.5
n/s
n/s
2003 DFO Spring Survey (NED2003002) GB Exchange Winter 2003-2004 NM vs. LVE
SS vs. LVE
48 8.33
5.74
62.5
72.9
0.035
n/s
2003 Spring Survey (200303) GB Exchange Winter 2003-2004 SS 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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