Assessing the status of the cod (Gadus morhua) stock in NAFO Subdivision 3Ps in 2015
Bibliographic record
Abstract
The status of the cod stock in the Northwest Atlantic Fisheries Organization (NAFO) Subdivision 3Ps was assessed during a Fisheries and Oceans Canada (DFO) Regional Peer Review Process meeting held October 20-22, 2015. Stock status was updated based upon information collected up to spring 2015. Principal sources of information available for the assessment were: a time series of abundance and biomass indices from Canadian winter/spring research vessel (RV) bottom trawl surveys, inshore sentinel surveys, science logbooks from vessels < 35 ft., logbooks from vessels > 35 ft., reported landings from commercial fisheries, oceanographic data, and tagging studies.\nDespite short-term projections for stock growth, there is reason for concern for 3Ps cod going forward. Although recruitment has recently been good, mortality is very high and hence the long-term contribution of these year classes to the fishery and spawning biomass is still uncertain. The spawning biomass is composed almost entirely of young fish, with the current age at maturity being the lowest recorded in the time series. Recent biological data suggest fish growth rates are low and that fish condition is poor. In recent years, cod in 3Ps have been feeding heavily on lipid-poor prey such as snow crab and other invertebrates. The combination of these biological data with the recent rise of warm-water species such as white hake is suggestive of broad changes in the 3Ps ecosystem and perhaps reduced cod productivity.\n
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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".