An ichthyophoniasis epizootic in Atlantic herring in marine waters around Iceland
Bibliographic record
Abstract
A widespread ichthyophoniasis epizootic occurred in the Icelandic summer-spawning herring (Clupea harengus) stock during the years 2008–2014. The spatial and temporal variation in prevalence of heart lesions and the seasonal development of the disease in the stock were explored with an inspection of hearts. The year classes from 2004 to 2006 had generally the highest prevalence of heart lesions, varying from ∼47%–50% in 2009 to ∼31%–34% in 2014. Newly developed disease was apparently occurring in the autumns of 2008–2010 but not in the autumns thereafter. Analyses of the data strongly suggest that the disease caused mortality in 2009–2011 but was insignificant thereafter, and consequently, the epizootic waned after mid-2011. The analytical assessment model used for the stock gave the best fit to the data when applying disease mortality equivalent to 30% of the diseased herring for these 3 years. Thus, we conclude that the widespread ichthyophoniasis epizootic in the stock over these 6 years caused significant mortality in the stock during the first 3 years but less mortality than suggested in other publications.
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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 | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 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) | 0.000 | 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".