Tusk (Brosme brosme) in the Northeast Atlantic
Bibliographic record
Abstract
Based on the genetic information that has been analyzed in 2007, ICES presents advice for the following stock units of tusk: Subareas I and II (Arctic); Division Va and Subarea XIV; Division XII excluding XIIb (Mid-Atlantic Ridge); Division VIb (Rockall); Other areas (IIIa, IV, Vb, VIa, VII, VIII, IX, and XIIb). This latter grouping is a combination of isolated fishing grounds and these areas are grouped due to their mutual lack of data. The new perception of the stock structure is based on considerations of new genetic information in 2007 (ICES, 2007). Studies using recently developed microsatellite primers detected highly significant genetic differentiation in tusk within its North Atlantic range. In particular, tusk around Rockall, the Mid-Atlantic Ridge, and off Canada, most likely represent different biological populations that clearly warrant separate management considerations. For the remainder of the North Atlantic this study uncovered limited genetic differentiation and no firm conclusion can be reached at present regarding the number of populations and assessment units. Samples from Storegga and Tromsøflaket (ICES Subarea II) are similar and may represent a single population in this area, and likewise for Greenland and Iceland. Tusk from around Faroe Islands differ significantly both from those from Iceland and Tromsøflaket, but the differences are small and it is at present unclear how these differences should be interpreted in terms of management implications. The geographical coverage of this study is insufficient to exclude the possibility of additional genetically differentiated populations of tusk. More samples are required from around Iceland, Faroe Islands, Hatton Bank, and Western Scotland to disentangle potential structure within and among these areas. Before 2008, ICES has advised for three management units proposed on the basis of apparent isolation of fishing ground: I and II (Arctic), Va (Iceland), and IIIa, IVa, Vb,VI, VII, VIII, IX, XII, and XIV (other areas).
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".