Updated status report on the endangered Atlantic Whitefish, Coregonus huntsmani
Bibliographic record
Abstract
The Atlantic Whitefish, Coregonus huntsmani, is an endemic Canadian species known only from the Tusket and Petite Riviére watersheds in southwestern Nova Scotia.The species is anadromous in the Tusket River and its tributary the Annis River.It has declined drastically in these rivers as a result of factors related to a hydro-electric dam, acidification, overfishing and poaching.The construction of a hydro-electric dam on the Tusket River has prevented Atlantic Whitefish from migrating upstream to spawn and exposed them to poachers in fish ladders.More recently the spread of Chain Pickerel, Esox niger, has contributed to the decline of Atlantic Whitefish in the Annis River.The decline in the Tusket River watershed has continued since the last COSEWIC report in 1983, although the report of an Atlantic Whitefish in the Tusket River in 1996 may indicate a remnant population still exists.Atlantic Whitefish have been regularly caught by anglers in the Petite Riviere watershed since the late 1800s although population trends are uncertain.Atlantic Whitefish are landlocked in three lakes in this watershed and there appears to be a small population in the lower Petite Riviére.The Atlantic Whitefish populations in the Petite Riviere lakes may be threatened by acidification and the spread of non-indigenous fish predators like Smallmouth Bass.Field studies in 1982-1985 provided some knowledge of the habitat and biology of Atlantic Whitefish although the ecological requirements of the species are still poorly known.The Atlantic Whitefish Conservation and Recovery Team was created in 1999 and is actively investigating requirements to conserve the species.The Atlantic Whitefish is threatened with imminent extinction and its status should remain as endangered.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.027 | 0.012 |
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".