Josh Dayton (JD) has been working with Black Sea Bass at NOAA since 2008, and has 2 years of prior experience. Whole 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. Structure indicates which part of the fish was used: Scales, Otoliths, or a combination of both (S+O); one test compared the two structures.
| Sample Source | Struc-ture | Test Type | Date Com-pleted | Age Reader | Number Aged | Number Tested | CV (%) | Agree-ment (%) | Bias |
|---|---|---|---|---|---|---|---|---|---|
| 2023 Commercial Samples (Q4) | Otoliths | Precision | 2/2024 | JD | 733 | 85 | 1.96 | 84.7 | n/s |
| 2023 Commercial Samples (Q3) | Otoliths | Precision | 1/2024 | JD | 212 | 45 | 2.17 | 86.7 | n/s |
| 2023 Autumn Survey (202304) | Otoliths | Precision | 1/2024 | JD | 540 | 100 | 2.85 | 88.0 | n/s |
| 2022 Commercial Samples (Q4) | Otoliths | Precision | 1/2024 | JD | 411 | 75 | 3.16 | 79.4 | n/s |
| 2023 Commercial Samples (Q2) | Otoliths | Precision | 10/2023 | JD | 747 | 100 | 1.99 | 83.0 | n/s |
| 2023 Commercial Samples (Q1) | Otoliths | Precision | 10/2023 | JD | 718 | 100 | 1.60 | 85.0 | n/s |
| 2022 Autumn Survey (202204) | Otoliths | Precision | 5/2023 | JD | 739 | 100 | 5.61 | 81.0 | n/s |
| 2022 Commercial Samples (Q3) | Otoliths | Precision | 5/2023 | JD | 479 | 89 | 3.90 | 76.4 | n/s |
| 2022 Commercial Samples (Q2) | Otoliths | Precision | 5/2023 | JD | 368 | 71 | 3.41 | 76.1 | n/s |
| 2022 Commercial Samples (Q1) | Otoliths | Precision | 1/2023 | JD | 463 | 90 | 1.73 | 87.8 | n/s |
| 2022 Spring Survey (202202) | Otoliths | Precision | 8/2022 | JD | 332 | 66 | 0.97 | 93.9 | |
| 2021 Commercial Samples (Q4) | Otoliths | Precision | 8/2022 | JD | 505 | 94 | 3.32 | 75.5 | n/s |
| 2021 Commercial Samples (Q2-3) | Otoliths | Precision | 8/2022 | JD | 325 | 53 | 3.66 | 77.4 | n/s |
| 2021 Commercial Samples (Q1) | Otoliths | Precision | 8/2022 | JD | 905 | 100 | 4.15 | 74.0 | n/s |
| 2021 Autumn Survey (202104) | Otoliths | Precision | 5/2022 | JD | 407 | 80 | 4.87 | 86.3 | n/s |
| 2021 Spring Survey (202102) | Otoliths | Precision | 5/2022 | JD | 279 | 50 | 5.88 | 70.0 | n/s |
| 2020 Spring Survey (202002) | Otoliths | Precision | 11/2021 | JD | 269 | 52 | 1.46 | 90.4 | |
| 2020 Commercial Samples (Q4) | Otoliths | Precision | 11/2021 | JD | 465 | 93 | 2.57 | 84.9 | n/s |
| 2020 Commercial Samples (Q3) | Otoliths | Precision | 11/2021 | JD | 741 | 100 | 4.49 | 69.0 | 0.04 |
| 2020 Commercial Samples (Q2) | Otoliths | Precision | 11/2021 | JD | 340 | 63 | 3.65 | 76.2 | n/s |
| 2020 Commercial Samples (Q1) | Otoliths | Precision | 11/2021 | JD | 613 | 95 | 1.68 | 87.4 | n/s |
| 2019 Commercial Samples (Q4) | Otoliths | Precision | 8/2020 | JD | 747 | 100 | 3.48 | 75.0 | n/s |
| 2019 Commercial Samples (Q3) | Otoliths | Precision | 4/2020 | JD | 808 | 100 | 1.02 | 92.0 | |
| 2019 Commercial Samples (Q2) | Otoliths | Precision | 2/2020 | JD | 843 | 100 | 1.25 | 90.0 | |
| 2019 Commercial Samples (Q1) | Otoliths | Precision | 11/2019 | JD | 726 | 100 | 2.36 | 84.0 | n/s |
| 2019 Spring Survey (201902) | Otoliths | Precision | 7/2019 | JD | 175 | 43 | 1.20 | 93.0 | |
| 2018 Commercial Samples (Q4) | Otoliths | Precision | 5/2019 | JD | 949 | 81 | 2.42 | 86.4 | n/s |
| 2018 Commercial Samples (Q3) | Otoliths | Precision | 4/2019 | JD | 738 | 90 | 2.11 | 84.4 | n/s |
| 2018 Autumn Survey (201804) | Otoliths | Precision | 3/2019 | JD | 390 | 82 | 0.62 | 96.3 | |
| 2018 Commercial Samples (Q2) | Otoliths | Precision | 12/2018 | JD | 762 | 83 | 2.32 | 85.5 | n/s |
| 2018 Commercial Samples (Q1) | Otoliths | Precision | 12/2018 | JD | 638 | 78 | 2.22 | 88.5 | n/s |
| 2018 Spring Survey (201802) | Otoliths | Precision | 6/2018 | JD | 153 | 35 | 1.47 | 91.4 | |
| 2017 Commercial Samples (Q4) | Otoliths | Precision | 6/2018 | JD | 526 | 84 | 4.55 | 77.4 | n/s |
| 2017 Commercial Samples (Q3) | Otoliths | Precision | 3/2018 | JD | 311 | 75 | 3.28 | 76.0 | n/s |
| 2017 Commercial Samples (Q2) | Otoliths | Precision | 2/2018 | JD | 416 | 72 | 3.02 | 83.3 | n/s |
| 2017 Commercial Samples (Q1) | Otoliths | Precision | 12/2017 | JD | 625 | 68 | 2.46 | 85.3 | n/s |
| 2017 Spring Survey (201702) | Otoliths | Precision | 7/2017 | JD | 420 | 79 | 1.47 | 91.1 | |
| 2016 Commercial Samples (Q3-4) | Otoliths | Precision | 7/2017 | JD | 400 | 77 | 5.01 | 74.0 | n/s |
| 2016 Autumn Survey (201604) | Otoliths | Precision | 1/2017 | JD | 348 | 67 | 0.00 | 100.0 | |
| 2016 Spring Survey (201602) | Otoliths | Precision | 12/2016 | JD | 456 | 84 | 1.60 | 91.7 | |
| 2016 Commercial Samples (Q2) | Otoliths | Precision | 11/2016 | JD | 817 | 96 | 2.31 | 86.5 | n/s |
| 2016 Commercial Samples (Q1) | Otoliths | Precision | 11/2016 | JD | 961 | 54 | 2.41 | 85.2 | |
| 2015 Commercial Samples (Q3-4) | S+O | Precision | 4/2016 | JD | 400 | 79 | 1.48 | 91.1 | |
| 2015 Commercial Samples (Q2) | Scales | Precision | 3/2016 | JD | 410 | 76 | 1.05 | 94.7 | |
| 2015 Commercial Samples (Q1) | Scales | Precision | 3/2016 | JD | 428 | 68 | 1.27 | 92.7 | |
| 2015 Autumn Survey (201504) | Otoliths | Precision | 2/2016 | JD | 502 | 98 | 6.68 | 85.7 | n/s |
| 2014 Commercial Samples (Q3-4) | Scales | Precision | 1/2016 | JD | 825 | 95 | 4.19 | 73.7 | n/s |
| 2014 Commercial Samples (Q2) | Scales | Precision | 1/2016 | JD | 843 | 90 | 3.49 | 82.2 | n/s |
| 2014 Commercial Samples (Q1) | Scales | Precision | 12/2015 | JD | 313 | 60 | 0.49 | 96.7 | |
| 2015 Spring Survey (201502) | Otoliths | Precision | 11/2015 | JD | 166 | 36 | 2.09 | 88.9 | n/s |
| 2013 & 2014 Autumn Surveys (201304 & 201404) | Otoliths | Precision | 8/2015 | JD | 688 | 91 | 2.38 | 87.9 | n/s |
| 2014 Spring Survey (201402) | S+O | Precision | 3/2015 | JD | 264 | 61 | 1.08 | 93.4 | |
| 2013 Commercial Samples (Q3-4) | Scales | Precision | 1/2015 | JD | 624 | 98 | 4.06 | 76.5 | n/s |
| 2013 Spring Survey (201302) | S+O | Precision | 8/2014 | JD | 441 | 89 | 0.54 | 97.8 | |
| 2013 Commercial Samples (Q2) | Scales | Precision | 7/2014 | JD | 685 | 95 | 2.19 | 89.5 | n/s |
| 2013 Commercial Samples (Q1) | Scales | Precision | 5/2014 | JD | 525 | 96 | 1.60 | 90.6 | |
| 2012 Autumn Survey (201204) | S+O | Precision | 5/2014 | JD | 466 | 86 | 0.71 | 96.5 | |
| 2012 Commercial Samples (Q1-Q4) | Scales | Precision | 12/2013 | JD | 2481 | 101 | 3.97 | 78.2 | n/s |
| 2012 Spring Survey (201202) | Otoliths vs. Scales | Inter-Structure | 4/2013 | JD | — | 85 | 4.55 | 75.3 | n/s |
| 2012 Spring Survey (201202) | Scales | Precision | 2/2013 | JD | 270 | 96 | 2.75 | 85.4 | n/s |
| 2011 Commercial Samples (Q1-Q4) | Scales | Precision | 5/2012 | JD | 2027 | 143 | 1.75 | 91.6 | |
| 2011 Spring Survey (201102) | S+O | Precision | 3/2012 | JD | 140 | 60 | 3.29 | 86.7 | 0.047 |
| 2010 Spring Survey (201001) | Scales | Precision | 2/2011 | JD | 305 | 50 | 0.51 | 96.0 | |
| 1999, 2002, & 2006 Winter Surveys | Scales | Precision | 2/2011 | JD | 720 | 98 | 3.89 | 81.6 | n/s |
