Spatial Distribution of<i>Gyrodactylus salmonis</i>(Monogenea) on the Body of Captive Fingerling<i>Oncorhynchus mykiss</i>, Including Attachment Within the Olfactory Chamber
Bibliographic record
Abstract
Gyrodactylus salmonis is a common ectoparasite on the fins and body of North American salmonids in fresh water. In this study, the spatial distribution of G. salmonis on 60 captive hatchery-reared rainbow trout, Oncorhynchus mykiss , is reported. The highest parasite densities occurred on 5 × 5-mm(2) sections of the dorsal fin followed by the trunk, other fins, and the olfactory chamber, with the lowest densities on the head. The finding of infections within the olfactory chamber of 93% of the fish was unexpected. One possibility is that such infections represented spillover from high-density infrapopulations that occur on the skin and fins. However, this possibility is unlikely, because worm densities at various sites along the body surface of infected fish did not correlate with densities within the olfactory chamber. The parasite conceivably enters the chamber either via water incurrent or by crawling in from the head and subsequently remaining at this site to feed and reproduce. Results from scanning electron microscopy are consistent with physical modification to the olfactory epithelium associated with the attachment/reattachment of the opisthaptor and epithelial grazing.
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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 | 0.000 |
| 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) | 0.001 | 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".