Results of all QA/QC Exercises
for Yellowtail Flounder, Limanda ferruginea

Limanda ferruginea


Sarah Emery (SE) has been working with Yellowtail Flounder at NOAA since 2009, and has 5 years of prior experience. Whole otoliths are viewed with reflected light. Until 2019, scales were impressed in plastic and viewed with a projector.

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). Structure indicates which part of the fish was used: Scales, Otoliths, or comparisons between the two structures.

Sample Source Structure Test Type Date Completed Age Reader Number Aged Number Tested CV (%) Agreement (%) Bias
2019 Massachusetts Spring Survey (201991) Otoliths Precision 9/2019 SE 184 36 2.04 86.1 n/s
2019 Spring Survey (201902) Scales Precision 6/2019 SE 463 83 1.94 88.0 n/s
2019 Spring Survey (201902) Otoliths Precision 6/2019 SE 463 83 0.37 97.6
2018 Commercial Samples (Q4) Otoliths Precision 5/2019 SE 121 40 1.42 92.5
2018 Commercial Samples (Q3) Otoliths vs. Scales Inter-Structure 3/2019 SE 78 78 1.90 91.0
2018 Commercial Samples (Q3) Otoliths Precision 3/2019 SE 117 39 4.36 74.4 n/s
2018 Massachusetts Autumn Survey (201892) Otoliths Precision 3/2019 SE 180 44 0.94 95.5
2018 Autumn Survey (201804) Otoliths Precision 12/2018 SE 487 85 1.79 90.6
2018 Autumn Survey (201804) Scales Precision 12/2018 SE 487 87 2.14 92.0
2018 Commercial Samples (Q2) Otoliths vs. Scales Inter-Structure 11/2018 SE 206 206 3.86 77.7 n/s
2018 Commercial Samples (Q2) Otoliths Precision 11/2018 SE 227 54 2.24 88.9 n/s
2018 Commercial Samples (Q2) Scales Precision 11/2018 SE 445 88 2.00 88.6 n/s
2018 Massachusetts Spring Survey (201891) Scales Precision 9/2018 SE 345 68 2.44 86.8 n/s
2018 Commercial Samples (Q1) Otoliths Precision 8/2018 SE 236 54 1.58 92.6
2018 Commercial Samples (Q1) Scales Precision 8/2018 SE 387 74 1.30 91.9
2018 Spring Survey (201802) Otoliths Precision 6/2018 SE 115 50 1.91 88.0 n/s
2018 Spring Survey (201802) Scales Precision 6/2018 SE 274 59 1.04 93.2
2017 Commercial Samples (Q4) Scales Precision 3/2018 SE 337 67 0.57 95.5
2017 Commercial Samples (Q3) Scales Precision 2/2018 SE 406 83 1.94 88.0 n/s
2017 Massachusetts Autumn Survey (201792) Scales Precision 2/2018 SE 274 48 1.55 91.7  
2017 Autumn Survey (201704) Scales Precision 1/2018 SE 307 59 2.97 88.1 n/s
2017 Commercial Samples (Q2) Scales Precision 12/2017 SE 848 97 2.85 83.5 n/s
2017 Commercial Samples (Q1) Scales Precision 8/2017 SE 555 97 0.90 94.8  
2017 Massachusetts Spring Survey (201791) Scales Precision 8/2017 SE 264 57 1.13 94.7  
2017 Spring Survey (201702) Scales Precision 6/2017 SE 551 95 1.30 93.7  
2016 Massachusetts Autumn Survey (201692) Scales Precision 4/2017 SE 147 35 0.81 97.1  
2016 Commercial Samples (Q4) Scales Precision 4/2017 SE 854 100 2.40 89.0 n/s
2016 Commercial Samples (Q3) Scales Precision 2/2017 SE 235 53 3.57 84.9 n/s
2016 Autumn Survey (201604) Scales Precision 1/2017 SE 563 99 2.70 93.9  
2016 Commercial Samples (Q2) Scales Precision 12/2016 SE 996 100 1.94 88.0 n/s
2016 Massachusetts Spring Survey (201691) Scales Precision 10/2016 SE 370 65 0.44 98.5  
2016 Commercial Samples (Q1) Scales Precision 10/2016 SE 1106 100 1.60 91.0  
2016 Spring Survey (201602) Scales Precision 8/2016 SE 672 97 1.55 92.8  
2016 Canadian (DFO) Spring Survey (TEL2016002) Scales Precision 5/2016 SE 153 30 0.52 96.7  
2015 Commercial Samples (Q4) Scales Precision 4/2016 SE 905 98 2.59 85.7 n/s
2015 Massachusetts Autumn Survey (201592) Scales Precision 3/2016 SE 249 54 2.79 92.6  
2015 Commercial Samples (Q3) Scales Precision 3/2016 SE 640 96 1.92 90.6  
2015 Autumn Survey (201504) Scales Precision 12/2015 SE 459 88 2.14 97.7  
2015 Commercial Samples (Q2) Scales Precision 10/2015 SE 812 100 1.36 92.0  
2015 Massachusetts Spring Survey (201591) Scales Precision 8/2015 SE 247 55 0.73 96.4  
2015 Commercial Samples (Q1) Scales Precision 8/2015 SE 650 91 1.55 91.2  
2015 Spring Survey (201502) Scales Precision 6/2015 SE 638 98 1.14 92.9  
Yellowtail Reference Collection Scales Accuracy 4/2015 SE -- 68 1.93 86.8  
2014 Massachusetts Autumn Survey (201492) Scales Precision 4/2015 SE 183 45 1.68 95.6  
2014 Commercial Samples (Q4) Scales Precision 3/2015 SE 627 92 2.52 87.0 n/s
2014 Commercial Samples (Q3) Scales Precision 2/2015 SE 208 45 1.33 93.3  
2014 Autumn Survey (201404) Scales Precision 1/2015 SE 580 87 1.21 94.3  
2014 Commercial Samples (Q2) Scales Precision 12/2014 SE 648 96 0.89 94.8  
2014 Commercial Samples (Q1) Scales Precision 11/2014 SE 515 98 0.61 96.9  
2014 Massachusetts Spring Survey (201491) Scales Precision 9/2014 SE 194 48 2.52 89.6 n/s
2014 Spring Survey (201402) Scales Precision 7/2014 SE 713 96 0.51 97.9  
2013 Massachusetts Autumn Survey (201392) Scales Precision 5/2014 SE 179 44 0.92 95.5  
2013 Massachusetts Spring Survey (201391) Scales Precision 4/2014 SE 192 46 1.06 93.5  
2013 Commercial Samples (Q4) Scales Precision 4/2014 SE 559 97 1.71 88.7 n/s
2013 Commercial Samples (Q3) Scales Precision 3/2014 SE 597 96 1.08 93.8  
2013 Autumn Survey (201304) Scales Precision 2/2014 SE 586 95 1.98 91.6  
2013 Commercial Samples (Q2) Scales Precision 1/2014 SE 867 99 1.17 93.9  
2013 Yellowtail Cooperative Survey (201350 & 201351) Scales Precision 12/2013 SE 993 100 3.11 86.0 n/s
2013 Commercial Samples (Q1) Scales Precision 9/2013 SE 913 101 1.59 90.1  
2013 Canadian (DFO) Spring Survey (NED2013002) Scales Precision 8/2013 SE 159 43 2.99 83.7 n/s
2013 Spring Survey (201302) Scales Precision 7/2013 SE 973 100 2.12 88.0 n/s
2012 Massachusetts Autumn Survey (201292) Scales Precision 2/2013 SE 153 51 1.26 94.1  
2012 Commercial Samples (Q4) Scales Precision 2/2013 SE 1387 102 2.48 87.3 n/s
2012 Autumn Survey (201204) Scales Precision 2/2013 SE 712 108 2.58 87.0 n/s
2012 Commercial Samples (Q3) Scales Precision 12/2012 SE 742 99 2.15 88.9 n/s
2012 Commercial Samples (Q2) Scales Precision 11/2012 SE 763 97 2.13 87.6 n/s
2012 Massachusetts Spring Survey (201291) Scales Precision 9/2012 SE 162 51 1.41 92.2  
2012 Commercial Samples (Q1) Scales Precision 8/2012 SE 1253 100 2.55 83.0 n/s
2011 Massachusetts Autumn Survey (201192) Scales Precision 6/2012 SE 201 54 1.12 94.4  
2012 Spring Survey (201202) Scales Precision 6/2012 SE 606 98 1.54 90.8  
2012 Canadian (DFO) Spring Survey (NED2012002) Scales Precision 5/2012 SE 505 97 3.04 82.5 n/s
2011 Autumn Survey (201105) Scales Precision 4/2012 SE 775 100 1.82 92.0  
2011 Commercial Samples (Q4) Scales Precision 3/2012 SE 1047 99 0.77 96.0  
2011 Commercial Samples (Q3) Scales Precision 2/2012 SE 703 100 1.38 93.0  
2011 Commercial Samples (Q2) Scales Precision 12/2011 SE 1177 99 1.00 93.9  
2011 Massachusetts Spring Survey (201191) Scales Precision 11/2011 SE 281 75 2.20 89.3 n/s
2011 Commercial Samples (Q1) Scales Precision 7/2011 SE 1496 103 1.88 86.4 n/s
2011 Spring Survey (201102) Scales Precision 6/2011 SE 428 95 2.01 88.4 n/s
2010 Massachusetts Autumn Survey (201092) Scales Precision 4/2011 SE 288 75 2.05 92.0  
2011 Canadian (DFO) Spring Survey (NED2011002) Scales Precision 4/2011 SE 359 100 3.32 82.0 n/s
2010 Commercial Samples (Q4) Scales Precision 3/2011 SE 1042 96 1.04 94.8  
2010 Commercial Samples (Q3) Scales Precision 2/2011 SE 816 100 3.79 78.0 n/s
2010 Commercial Samples (Q2) Scales Precision 1/2011 SE 1212 104 2.30 86.5 n/s
2010 Commercial Samples (Q1) Scales Precision 2/2011 SE 1206 99 1.54 89.9 n/s
2010 Autumn Survey (201004) Scales Precision 1/2011 SE 707 98 1.64 92.9  
2010 Spring Survey (201001) Scales Precision 6/2010 SE 1348 99 0.50 96.0  
2010 Massachusetts Spring Survey (201091) Scales Precision 11/2010 SE 422 73 1.35 94.5  
2010 Canadian (DFO) Spring Survey (NED2010001) Scales Precision 2010 SE 384 75 2.70 84.0 n/s
2009 Commercial Samples (Q4) Scales Precision 5/2010 SE 675 99 3.57 82.8 0.037
2009 Commercial Samples (Q3) Scales Precision 2/2010 SE 1027 104 2.12 89.4 n/s
2009 Autumn Survey (200904) Scales Precision 1/2010 SE 1007 100 1.69 92.0  
2009 Commercial Samples (Q2) Scales Precision 12/2009 SE 1246 123 1.39 91.9  
2009 Commercial Samples (Q1) Scales Precision 1/2010 SE 1194 100 1.48 92.0  
2008 Commercial Samples (Q4) Scales Precision 5/2009 SM* 1056 105 4.48 81.9 n/s
2008 Commercial Samples (Q3) Scales Precision 4/2009 SM* 1225 100 4.55 80.0 0.016
2008 Commercial Samples (Q2) Scales Precision 3/2009 SE vs. SM* 1087 99 3.12 82.8 n/s
2008 Commercial Samples (Q2) Scales Precision 3/2009 SM* 1087 99 3.42 81.8 0.003
2008 Commercial Samples (Q1) Scales Precision 12/2008 SP 1090 102 2.84 85.3 n/s
2008 Autumn Survey (200807) Scales Precision 12/2008 SP 508 75 5.51 78.7 0.024
Yellowtail Reference Collection Scales Accuracy 6/2008 SP -- 79 1.62 91.1  
2008 Spring Survey (200803) Scales Precision 5/2008 SP 483 75 2.05 89.3 n/s
2007 Commercial Samples (Q4) Scales Precision 5/2008 SP 1370 100 1.83 91.0  
2007 Commercial Samples (Q3) Scales Precision 5/2008 SP 1140 100 6.54 75.0 0.006
2007 Commercial Samples (Q2) Scales Precision 4/2008 SP 969 100 3.29 82.0 n/s
2007 Commercial Samples (Q1) Scales Precision 4/2008 SP 1143 93 3.72 80.6 0.006
2007 Autumn Survey (200709) Scales Precision 12/2007 SP 499 75 3.93 80.0 n/s
Yellowtail Reference Collection Scales Accuracy 5/2007 SP -- 75 1.16 93.3  
2007 Spring Survey (200703) Scales Precision 5/2007 SP 540 75 2.41 88.0 n/s
2006 Commercial Samples (Q4) Scales Precision 5/2007 SP 1010 70 4.94 78.6 0.005
2006 Commercial Samples (Q3) Scales Precision 5/2007 SP 1184 75 1.97 90.7  
2006 Commercial Samples (Q2) Scales Precision 4/2007 SP 789 75 2.35 84.0 n/s
2006 Commercial Samples (Q1) Scales Precision 3/2007 SP 1175 70 3.25 78.6 n/s
2006 Autumn Survey (200610) Scales Precision 2/2007 SP 569 75 3.57 88.0 n/s
2006 Spring Survey (200604) Scales Precision 5/2006 SP 347 50 1.56 90.0  
2005 Commercial Samples (Q1-4) Scales Precision 5/2006 SP 2785 79 2.48 87.3 n/s
2005 Autumn Survey (200510) Scales Precision 3/2006 SP 246 54 5.05 81.5 n/s
2004 Commercial Samples (Q1-4), 2004 Autumn Survey (200407), & 2005 Spring Survey (200503) Scales Precision 6/2005 SP 3022 100 6.11 73.0 n/s
2004 Commercial Samples (Q1-4), 2004 Autumn Survey (200407), & 2005 Spring Survey (200503) Scales Precision 6/2005 VS 3022 100 6.64 71.0 n/s
2005 Canadian (DFO) Spring Survey (NED2005001) Scales Precision 4/2005 VS 427 100 1.79 92.0  
2004 Canadian (DFO) Commercial Samples Scales Precision 1/2005 SP vs. VS 162 162 4.83 74.7 n/s
2004 Canadian (DFO) Commercial Samples Scales Precision 1/2005 VS 167 167 2.52 86.2 n/s
2004 Canadian (DFO) Spring Survey (TEM2004004) Scales Precision 2004 VS -- 97 3.97 79.4 n/s
2004 Winter Survey (200401) Scales Precision 5/2004 VS 164 18 0.87 94.4  
2003 Autumn Survey (200306) Scales Precision 5/2004 VS 290 82 4.36 81.7 n/s

*SP married to become SM early in 2009.


Return to main QA/QC page
Return to the FBP Homepage

Link disclaimer | Email webmaster | Privacy policy |     File Modified Oct 02, 2019