Updated information on Atlantic salmon (Salmo salar) eastern Cape Breton populations (ECB; Salmon Fishing Area 19) of relevance to the development of a 2nd COSEWIC status report
Bibliographic record
Abstract
The purpose of this research document is to summarize and update the present status and recent trends of Atlantic Salmon populations in the Eastern Cape Breton (ECB) Designatable Unit (DU) of relevance to the development of the status report by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). There are 46 watersheds known to contain or have contained Atlantic Salmon in the DU, and additional smaller streams have been identified as likely to contain or historically contained Atlantic Salmon. Atlantic Salmon population monitoring in ECB has focused on five river systems: Middle, Baddeck, North, Grand, and Clyburn. Assessments on these rivers have been based on fishery independent counts by dive surveys or at a fish ladder and/or recreational catch reports. Of these five populations, two (Grand and Clyburn) show marked declines in adult abundance over the last 3-generations of available data. Two populations (Middle and Baddeck) have remained relatively stable at abundances below their conservation requirements and one population (North) is estimated to be near or above its conservation requirement in recent years. Recreational catch data for other rivers in the ECB DU suggests that Atlantic Salmon abundance is low throughout most of the DU. Intermittent electrofishing surveys also indicate that juvenile densities are below reference values at many locations throughout the ECB DU, although juvenile salmon are still widely distributed. A number of threats to Atlantic Salmon are identified in the freshwater and estuarine/marine environment of the ECB DU, including illegal fishing/poaching, salmonid aquaculture, marine ecosystem change, disease and parasites, and many others.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.004 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.037 | 0.007 |
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".