Cusk, Brosme brosme
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Sarah Emery (SE) has been working with Cusk since 2020. This is the first time NOAA has aged this species. Baked and 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.
| Sample Source | Test Type | Date Completed | Age Reader | Number Aged | Number Tested | CV (%) | Agree-ment (%) | Bias |
|---|---|---|---|---|---|---|---|---|
| 2022 NEFSC Bottom Long-Line Surveys (Spring) | Precision | 10/2023 | SE | 280 | 72 | 2.05 | 73.6 | n/s |
| 2021 NEFSC Bottom Long-Line Survey (Autumn) | Precision | 8/2023 | SE | 216 | 71 | 2.01 | 74.6 | n/s |
| 2021 NEFSC Bottom Long-Line Survey (Spring) | Precision | 6/2023 | SE | 306 | 102 | 1.73 | 77.5 | n/s |
| 2020 NEFSC Bottom Long-Line Survey (Autumn) | Precision | 5/2023 | SE | 228 | 96 | 2.42 | 76.0 | n/s |
| 2019 NEFSC Bottom Long-Line Survey (Spring) | Precision | 12/2022 | SE | 225 | 61 | 1.95 | 80.3 | 0.007 |
| 2019 NEFSC Bottom Long-Line Survey (Autumn) | Precision | 12/2022 | SE | 359 | 67 | 1.23 | 82.1 | n/s |
| 2017 Commercial Samples (Q4) | Precision | 12/2022 | SE | 199 | 52 | 3.07 | 71.2 | n/s |
