American Plaice, Hippoglossoides platessoides
Image
Josh Dayton (JD) has been working with American Plaice since 2010. Sectioned otoliths are viewed with reflected 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 |
|---|---|---|---|---|---|---|---|---|
| 2024 Commercial Samples (Q2) | Precision | 9/2024 | JD | 814 | 100 | 1.33 | 87.0 | n/s |
| 2024 Commercial Samples (Q1) | Precision | 9/2024 | JD | 428 | 85 | 1.11 | 90.6 | |
| 2024 Spring Survey (202402) | Precision | 8/2024 | JD | 608 | 100 | 1.56 | 89.0 | n/s |
| 2023 Commercial Samples (Q4) | Precision | 4/2024 | JD | 461 | 84 | 0.87 | 89.3 | n/s |
| 2023 Commercial Samples (Q3) | Precision | 4/2024 | JD | 197 | 40 | 1.79 | 77.5 | n/s |
| 2023 Commercial Samples (Q1-2) | Precision | 3/2024 | JD | 229 | 52 | 1.56 | 86.5 | n/s |
| 2023 Autumn Survey (202304) | Precision | 2/2024 | JD | 468 | 95 | 2.46 | 87.4 | n/s |
| 2022 Commercial Samples (Q3-4) | Precision | 8/2023 | JD | 185 | 48 | 4.03 | 72.9 | n/s |
| 2022 Commercial Samples (Q1-2) | Precision | 8/2023 | JD | 115 | 41 | 1.57 | 82.9 | n/s |
| 2022 Autumn Survey (202204) | Precision | 8/2023 | JD | 352 | 72 | 2.70 | 87.5 | n/s |
| 2022 Spring Survey (202202) | Precision | 8/2023 | JD | 578 | 94 | 1.99 | 86.2 | n/s |
| 2021 Commercial Samples (Q1-4) | Precision | 8/2022 | JD | 217 | 51 | 2.65 | 78.4 | n/s |
| 2021 Autumn Survey (202104) | Precision | 8/2022 | JD | 568 | 98 | 2.13 | 84.7 | n/s |
| 2021 Spring Survey (202102) | Precision | 8/2022 | JD | 578 | 100 | 2.73 | 82.0 | n/s |
| 2020 Commercial Samples (Q3-4) | Precision | 8/2021 | JD | 373 | 79 | 3.39 | 67.1 | n/s |
| 2020 Commercial Samples (Q2) | Precision | 8/2021 | JD | 303 | 64 | 4.12 | 51.6 | n/s |
| 2020 Commercial Samples (Q1) | Precision | 8/2021 | JD | 261 | 53 | 1.79 | 77.4 | n/s |
| 2019 Commercial Samples (Q4) | Precision | 8/2020 | JD | 190 | 40 | 3.03 | 67.5 | n/s |
| 2019 Commercial Samples (Q3) | Precision | 7/2020 | JD | 198 | 40 | 2.44 | 77.5 | n/s |
| 2019 Commercial Samples (Q2) | Precision | 7/2020 | JD | 520 | 100 | 3.15 | 65.0 | n/s |
| 2019 Autumn Survey (201904) | Precision | 6/2020 | JD | 638 | 100 | 4.66 | 73.0 | n/s |
| 2019 Commercial Samples (Q1) | Precision | 5/2020 | JD | 243 | 51 | 4.54 | 58.8 | n/s |
| 2019 Spring Survey (201902) | Precision | 9/2019 | JD | 639 | 97 | 3.94 | 73.2 | P = 0.038 |
| 2018 Commercial Samples (Q3-4) | Precision | 6/2019 | JD | 470 | 96 | 3.79 | 63.5 | n/s |
| 2018 Commercial Samples (Q2) | Precision | 5/2019 | JD | 483 | 92 | 4.01 | 62.0 | n/s |
| 2018 Commercial Samples (Q1) | Precision | 5/2019 | JD | 509 | 101 | 2.45 | 76.2 | n/s |
| 2018 Autumn Survey (201804) | Precision | 3/2019 | JD | 477 | 74 | 3.15 | 78.4 | n/s |
| 2018 Spring Survey (201802) | Precision | 2/2019 | JD | 500 | 102 | 4.03 | 71.6 | n/s |
| 2017 Commercial Samples (Q4) | Precision | 6/2018 | JD | 468 | 91 | 4.61 | 63.7 | n/s |
| 2017 Commercial Samples (Q3) | Precision | 6/2018 | JD | 602 | 97 | 5.20 | 60.2 | n/s |
| 2017 Autumn Survey (201704) | Precision | 3/2018 | JD | 329 | 64 | 5.04 | 75.0 | n/s |
| 2017 Commercial Samples (Q2) | Precision | 3/2018 | JD | 581 | 95 | 4.71 | 61.1 | n/s |
| 2017 Commercial Samples (Q1) | Precision | 3/2018 | JD | 532 | 100 | 5.79 | 59.0 | n/s |
| 2017 Spring Survey (201702) | Precision | 7/2017 | JD | 914 | 99 | 3.76 | 71.7 | n/s |
| 2016 Autumn Survey (201604) | Precision | 6/2017 | JD | 913 | 97 | 5.83 | 70.1 | n/s |
| 2016 Commercial Samples (Q4) | Precision | 5/2017 | JD | 453 | 87 | 3.76 | 67.8 | n/s |
| 2016 Commercial Samples (Q3) | Precision | 5/2017 | JD | 499 | 100 | 5.80 | 53.0 | n/s |
| 2016 Commercial Samples (Q2) | Precision | 5/2017 | JD | 582 | 97 | 3.85 | 59.8 | n/s |
| 2016 Commercial Samples (Q1) | Precision | 4/2017 | JD | 583 | 97 | 3.63 | 66.0 | n/s |
| 2016 Spring Survey (201602) | Precision | 3/2017 | JD | 1237 | 97 | 2.62 | 82.5 | n/s |
| 2015 Commercial Samples (Q4) | Precision | 7/2016 | JD | 505 | 101 | 3.67 | 67.3 | n/s |
| 2015 Commercial Samples (Q3) | Precision | 7/2016 | JD | 409 | 80 | 5.08 | 58.8 | n/s |
| 2015 Autumn Survey (201504) | Precision | 6/2015 | JD | 1148 | 97 | 2.54 | 84.5 | n/s |
| 2015 Commercial Samples (Q2) | Precision | 5/2016 | JD | 420 | 88 | 4.02 | 63.6 | n/s |
| 2015 Commercial Samples (Q1) | Precision | 4/2016 | JD | 379 | 79 | 3.36 | 65.8 | n/s |
| 2015 Spring Survey (201502) | Precision | 7/2015 | JD | 1037 | 98 | 2.62 | 84.7 | n/s |
| 2014 Autumn Survey (201404) | Precision | 4/2015 | JD | 868 | 98 | 2.90 | 84.7 | n/s |
| 2014 Commercial Samples (Q3-4) | Precision | 4/2015 | JD | 587 | 103 | 3.88 | 65.1 | n/s |
| 2014 Commercial Samples (Q2) | Precision | 3/2015 | JD | 333 | 69 | 2.95 | 69.6 | n/s |
| 2014 Commercial Samples (Q1) | Precision | 2/2015 | JD | 378 | 80 | 2.72 | 68.8 | n/s |
| 2014 Spring Survey (201402) | Precision | 2/2015 | JD | 911 | 97 | 3.81 | 71.1 | n/s |
| 2013 Autumn Survey (201304) | Precision | 12/2014 | JD | 726 | 95 | 4.96 | 74.7 | n/s |
| 2012 Autumn Survey (201204) | Precision | 12/2014 | JD | 748 | 98 | 5.25 | 67.4 | n/s |
| 2012 and 2013 Spring Surveys (201202 & 201302) | Precision (fish <20cm) | 12/2014 | JD | 487 | 72 | 4.82 | 84.7 | n/s |
| 2013 Spring Survey (201302) | Precision | 12/2014 | JD | 781 | 98 | 4.49 | 67.4 | n/s |
| 2012 Spring Survey (201202) | Precision | 11/2014 | JD | 1006 | 97 | 6.16 | 57.7 | n/s |
| 2013 Commercial Samples (Q4) | Precision | 11/2014 | JD | 472 | 94 | 4.50 | 66.0 | n/s |
| 2013 Commercial Samples (Q3) | Precision | 9/2014 | JD | 411 | 82 | 3.92 | 65.9 | n/s |
| 2011 Autumn Survey (201105) | Precision | 9/2014 | JD | 732 | 99 | 5.75 | 67.7 | n/s |
| 2013 Commercial Samples (Q2) | Precision | 8/2014 | JD | 437 | 84 | 4.37 | 59.5 | n/s |
| 2013 Commercial Samples (Q1) | Precision | 8/2014 | JD | 449 | 93 | 2.43 | 77.4 | n/s |
| 2012 Commercial Samples (Q4) | Precision | 7/2014 | JD | 428 | 87 | 6.00 | 56.3 | n/s |
| 2012 Commercial Samples (Q3) | Precision | 6/2014 | JD | 528 | 101 | 4.98 | 59.4 | n/s |
| 2012 Commercial Samples (Q2) | Precision | 5/2014 | JD | 292 | 63 | 1.72 | 79.4 | n/s |
| 2012 Commercial Samples (Q1) | Precision | 5/2014 | JD | 289 | 61 | 4.09 | 59.0 | n/s |
| 2011 Commercial Samples (Q4) | Precision | 4/2014 | JD | 364 | 74 | 3.26 | 71.6 | n/s |
| 2011 Commercial Samples (Q3) | Precision | 3/2014 | JD | 413 | 85 | 4.07 | 65.9 | n/s |
| 2011 Commercial Samples (Q2) | Precision | 3/2014 | JD | 463 | 95 | 2.71 | 68.4 | n/s |
| 2011 Commercial Samples (Q1) | Precision | 1/2014 | JD | 300 | 60 | 4.32 | 63.3 | n/s |
| 2011 Spring Survey (201102) | Precision | 1/2012 | JD | 709 | 97 | 5.60 | 69.1 | n/s |
| 2010 Autumn Survey (201004) | Precision | 9/2011 | JD | 605 | 100 | 4.68 | 72.0 | n/s |
| 2010 Commercial Samples (Q1) | Precision | 8/2011 | JD | 726 | 92 | 6.41 | 50.0 | n/s |
| 2008 Commercial Samples (Q1) | Precision | 11/2010 | JD | 266 | 57 | 2.87 | 77.2 | n/s |
| 2010 Spring Survey (201001) | Precision | 11/2010 | JD | 783 | 100 | 5.24 | 69.0 | n/s |
| 2009 Autumn Survey (200904) | Precision | 10/2010 | JD vs. JB | 650 | 179 | 0.67 | 96.1 | |
| 2009 Autumn Survey (200904) | Precision | 10/2010 | JD | 650 | 179 | 3.93 | 78.2 | n/s |
| 2007 Commercial Samples (Q4) | Precision | 8/2008 | JB | 296 | 76 | 2.02 | 80.3 | n/s |
| 2007 Commercial Samples (Q3) | Precision | 8/2008 | JB | 386 | 77 | 1.59 | 83.1 | n/s |
| 2007 Commercial Samples (Q2) | Precision | 8/2008 | JB | 233 | 78 | 1.33 | 85.9 | n/s |
| 2007 Commercial Samples (Q1) | Precision | 8/2008 | JB | 322 | 75 | 1.84 | 78.7 | n/s |
| 2006 Commercial Samples (Q4) | Precision | 8/2008 | JB | 264 | 77 | 1.60 | 84.4 | n/s |
| 2006 Commercial Samples (Q3) | Precision | 8/2008 | JB | 325 | 78 | 1.27 | 84.6 | n/s |
| 2006 Commercial Samples (Q2) | Precision | 8/2008 | JB | 336 | 77 | 1.39 | 87.0 | n/s |
| 2006 Commercial Samples (Q1) | Precision | 8/2008 | JB | 313 | 78 | 2.24 | 73.1 | n/s |
| 2005 Commercial Samples (Q4) | Precision | 8/2008 | JB | 330 | 78 | 2.04 | 78.2 | n/s |
| 2005 Commercial Samples (Q3) | Precision | 8/2008 | JB | 320 | 75 | 1.54 | 82.7 | n/s |
| 2005 Commercial Samples (Q2) | Precision | 8/2008 | JB | 237 | 77 | 1.98 | 79.2 | n/s |
| 2005 Commercial Samples (Q1) | Precision | 8/2008 | JB | 265 | 78 | 1.53 | 80.8 | n/s |
| 2008 Spring Survey (200803) | Precision | 8/2008 | JB | 615 | 69 | 2.00 | 84.1 | n/s |
| 2007 Autumn Survey (200709) | Precision | 8/2008 | JB | 598 | 70 | 2.42 | 85.7 | n/s |
| 2007 Spring Survey (200703) | Precision | 8/2008 | JB | 662 | 74 | 2.24 | 86.5 | n/s |
| 2006 Autumn Survey (200610) | Precision | 8/2008 | JB | 702 | 67 | 2.01 | 89.6 | n/s |
| 2006 Spring Survey (200604) | Precision | 8/2008 | JB | 715 | 72 | 1.35 | 91.7 | |
| 2005 Autumn Survey (200510) | Precision | 8/2008 | JB | 509 | 69 | 2.03 | 87.0 | n/s |
| 2004 Commercial Samples (Q4) & 2004 Autumn Survey (200407) | Precision | 8/2004 | JB | 432 | 161 | 1.69 | 85.7 | n/s |
