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Record W7133274510

Assessment of Capelin (Mallotus villosus) in NAFO Divisions 2J + 3KL to 2024

2025· other· en· W7133274510 on OpenAlexaff
Ron S. Lewis, Hannah M. Murphy, Aaron T. Adamack, Hannah Munro, Mariano Koen‐Alonso, Christina M. Bourne

Bibliographic record

VenueFederal Open Science Repository of Canada / Le Dépôt fédéral de science ouverte du Canada · 2025
Typeother
Languageen
Field
Topic
Canadian institutionsGovernment of CanadaFisheries and Oceans Canada
Fundersnot available
KeywordsCapelinStock (firearms)Biomass (ecology)HerringStock assessment
DOInot available

Abstract

fetched live from OpenAlex

Fishery-independent (spring acoustic survey, larval survey, biological characteristics from the spring acoustic and fall bottom-trawl surveys, and citizen science beach spawning diary program) and fishery-dependent survey data were used to assess the status of Capelin (Mallotus villosus) in Northwest Atlantic Fisheries Organization (NAFO) Divisions (Div.) 2J3KL up to and including 2024. In 2024, the biomass index was 647 kt which was higher than the 2018 to 2023 time period (median: 286 kt) and similar to recent time series highs in 2013 to 2014 but lower than the 1980s median. In 2024, a low proportion of female Capelin maturing at age-2 were observed; spawning timing was earlier than the post-collapse median; and the Bellevue Beach larval index was similar to the time series median. Capelin fall relative condition was similar to last year. The Limit Reference Point (LRP) for the 2J3KL Capelin stock is a spring acoustic biomass index of 155 kt. The Capelin stock in 2024 was above its LRP with a greater than 95% probability, and has been above the LRP since 2007, except for 2010 and 2017. Based on the Capelin forecast model, the Capelin acoustic biomass index in 2025 is projected to be lower than the observed 2024 biomass index, but above the LRP. The boundary between the Cautious and Healthy Zones has not been determined for this stock.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: none
Teacher disagreement score0.844
Threshold uncertainty score0.311

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.008
GPT teacher head0.270
Teacher spread0.262 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreOther

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".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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Same venueFederal Open Science Repository of Canada / Le Dépôt fédéral de science ouverte du Canada→French-language works237,207→