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Golden Tilefish: QA/QC Exercise Results

Results of the QA/QC exercises for ageing golden tilefish.

Golden Tilefish, Lopholatilus chamaeleonticeps

Image
Side-profile illustration of a golden tilefish with silver and gray body, gold, yellow spotting, and dark red tail fin. Credit: NOAA Fisheries/Jack Hornady

Katie Rogers (KR) has been working with Golden Tilefish since 2016; before that, the age reader was Nikole Jalbert (NJ). Sectioned otoliths are viewed with transmitted light.

In tests where agreement is below 90%, bias indicates either the P-value of a symmetry test or ‘n/s’ (test not significant at the α = 0.05 level). The Evans & Hoenig test was used to test bias starting 1/2022; prior to that, a Bowker's test was used.

Sample Source Test Type Date Completed Age Reader Number Aged Number Tested CV (%) Agree-ment (%) Bias
2020 Commercial Samples (Q4) Precision 8/2021 KR 133 42 1.29 85.7 n/s
2020 Commercial Samples (Q3) Precision 8/2021 KR 297 64 2.17 78.1 n/s
2020 Commercial Samples (Q2) Precision 8/2021 KR 324 64 0.73 90.6  
2020 Commercial Samples (Q1) Precision 8/2021 KR 411 73 0.34 94.5  
2019 Commercial Samples (Q4) Precision 8/2021 KR 284 57 1.96 86.0 n/s
2019 Commercial Samples (Q3) Precision 7/2021 KR 345 75 1.49 84.0 n/s
2019 Commercial Samples (Q2) Precision 7/2021 KR 360 65 0.56 92.3  
2019 Commercial Samples (Q1) Precision 7/2021 KR 332 65 1.33 86.2 n/s
2018 Commercial Samples (Q4) Precision 7/2021 KR 302 40 1.14 87.5 n/s
2018 Commercial Samples (Q3) Precision 7/2021 KR 409 80 3.25 72.5 n/s
2018 Commercial Samples (Q1-2) Precision 9/2019 KR 828 100 2.11 79.0 n/s
2017 Commercial Samples (Q3-4) Precision 10/2018 KR 401 78 4.28 65.3 n/s
2017 Commercial Samples (Q2) Precision 10/2018 KR 385 78 2.08 80.8 n/s
2017 Commercial Samples (Q1) Precision 8/2018 KR 343 71 1.86 81.7 n/s
2016 Commercial Samples (Q3-4) Precision 12/2017 KR 740 83 2.26 79.5 n/s
2016 Commercial Samples (Q1-2) Precision 12/2017 KR 885 96 2.39 76.0 n/s
2014 Commercial Samples (Q3-4) Precision 2/2017 KR 466 86 3.93 74.4 n/s
2014 Commercial Samples (Q1-2) Precision 1/2017 KR 565 96 2.21 81.3 n/s
2015 Commercial Samples (Q3-4) Precision 12/2016 KR 356 62 2.34 77.4 n/s
2015 Commercial Samples (Q2) Precision 11/2016 KR 417 81 2.15 81.5 n/s
2015 Commercial Samples (Q1) Precision 11/2016 KR 437 84 7.46 53.6 n/s
2011 Commercial Samples (Q1-4) Precision 1/2014 NH 765 99 4.01 63.6 n/s
2008 Commercial Samples (Q2-4) Precision 1/2014 NH 459 95 2.38 73.7 n/s
2006 Commercial Samples (Q1-4) Precision 11/ 2013 NH 570 95 2.99 71.6 n/s
2007 Commercial Samples (Q1-4) Precision 11/2013 NH 444 92 3.52 68.5 n/s
2008 Commercial Samples (Q1-2) Precision 10/2013 NH 442 89 4.06 59.6 n/s
2009 Commercial Samples (Q1-4) Precision 8/2013 NJ* 607 98 5.88 54.1 n/s
2010 Commercial Samples (Q1-4) Precision 6/2013 NJ* 591 97 4.87 55.7 n/s

Last updated by Northeast Fisheries Science Center on December 27, 2022

Age and Growth