Trematode diversity in freshwater pulmonate snails from the St Lawrence Wetlands, Canada
Bibliographic record
Abstract
This study applies a molecular approach addressing the identification of trematode larval stages (sporocysts, rediae and cercariae) parasitising four freshwater pulmonate snails (Stagnicola elodes, Radix auricularia, Planorbella trivolvis and Physella gyrina) collected in the wetlands of St Lawrence River in Canada. A total of 20 genetically distinct species or species level lineages were identified via phylogenetic analyses based on, depending on the taxonomic group, mitochondrial (cox1 and nad1) and nuclear (ITS-5.8S-ITS2 and 28S rDNA) sequences integrated with data from the recently generated sequence libraries for the European and some North American trematodes. Phylogenetic analyses and distance-based approaches allowed molecular identification of six described/named and 14 putative new species. These included species of six digenean families (Clinostomidae, Derogenidae, Echinostomatidae, Plagiorchiidae, Schistosomatidae and Strigeidae).
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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 | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 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".