Rhabdochona hospeti Thapar, 1950: A Natural Parasite in Tor putitora
Bibliographic record
Abstract
Rhabdochona Railliet, 1916 is a predominant intestinal parasite in fresh water fish all over the world. This study, aimed to investigate the infection level (prevalence, mean intensity and abundance) of nematode Rhabdochona hospeti Thapar, 1950 in golden mahseer (Tor putitora) in Mahakali River, Nepal, was conducted from September 2022 to August 2023. A total of 146golden mahseerwere collected from the two sites of the Mahakali River by using gill nets. Nematode parasites were retrieved and processed using standard helminthological methods. All sized and both male and female fish were found infected year-round. Overall, the prevalence, mean intensity and abundance of the Rhabdochona hospeti in golden mahseer were 90.41%,7.48and 6.77 respectively. Butthere was 100% prevalence in more than 150 gm weight fish in the months of September, January, February and April. The parasitic burden (mean intensity and abundance) was higher in more than 20 cm sized (8.29 and 7.48) female host fish (8.45 and 7.89) in the months of October (15.5 and 13.29) and autumn season (10.84 and 10.05). Statistically, the prevalence, mean intensity and abundance of the Rhabdochona hospeti were insignificant (p ˃ 0.05) with the body size and sex of the host fish, months and season of the year. This study reveals stable high infection of the Rhabdochona hospetias a natural parasite in golden mahseer fish in new locality and will be the one of the natural cause of fish decline from the river in near future.
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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 | 0.001 | 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".