Rebuilding simulations for 3Ps cod
Bibliographic record
Abstract
Atlantic cod Gadus morhua in NAFO Subdivision 3Ps remains well within the critical zone of Canada's Precautionary Approach (PA) Framework, and was at 48% of the Limit Reference Point (LRP) in 2021. Fisheries and Oceans Canada (DFO) has a legal requirement to develop a Rebuilding Plan for this stock. The 3Ps Atlantic cod stock is co-managed by Canada and France. ”MSE-lite” is a framework that uses closed-loop simulations of the assessment model to project the stock trajectory under a range of recruitment (R) and natural mortality (M) scenarios, and with the application of various management procedures. This framework is considered to be scientifically sound, and is adequate for assessing the rebuilding potential of Atlantic Cod in 3Ps in support of the development of a Rebuilding Plan for this stock. Scenarios of R and M tested within MSE-lite all fall within the conditions previously experienced by the stock. In a changing ocean climate these conditions may not adequately capture future conditions, and biological evidence suggests M is more likely to increase than decrease. The prevailing conditions defined for R and M are appropriate for calculating minimum time to rebuild to the proposed target in the absence of fishing (Tmin). The stock is expected to reach the proposed rebuilding target (above the LRP with a 75% probability) in 2036.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.008 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".