Aspidobothrean Parasites of Freshwater Mussels (Bivalvia: Unionidae) from the Saskatchewan–Nelson River Drainage in Manitoba, Canada and North Dakota, United States
Bibliographic record
Abstract
A total of 1,021 freshwater mussels (Bivalvia: Unionidae) representing 12 species collected from 23 rivers between May 2002 and September 2006 in Manitoba, Saskatchewan, and North Dakota, U.S.A. were examined for aspidobothrean parasites. Nine of the 12 species were infected with aspidobothrean parasites. Anodontoides ferussacianus, Lasmigona complanata, Lasmigona compressa were uninfected. Aspidogaster conchicola was recovered from 77 individuals representing 6 of 12 mussel species. Prevalence as high as 100% was recorded for Amblema plicata and Potamilus alatus. The highest infection intensity was 254 observed in P. alatus. Cotylogaster occidentalis was recovered from 91 individuals representing 8 of 12 mussel species. Prevalence was typically lower by comparison with A. conchicola, although samples of single infected Fusconaia flava, Lampsilis siliquoidea, and Strophitus undulatus resulted in 100% prevalence in some localities. Cotylogaster occidentalis infection intensity was also much lower with the highest being 10 from Lampsilis cardium. This represents the first report of A. conchicola and C. occidentalis from Manitoba and North Dakota. Aspidogaster conchicola is reported for the first time from Lampsilis cardium. Cotylogaster occidentalis is reported for the first time from the mussels Amblema plicata, Fusconaia flava, Lampsilis cardium, Potamilus alatus, Quadrula quadrula, and Strophitus undulatus. Aspidogaster conchicola was not found infecting some mussel species that had been previously reported as parasitized hosts, perhaps suggesting local host specificity.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 | 0.001 |
| 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 teacher head, 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".