The Implications of Parasite Roles for the Nutritional Dynamics of Food Webs
Bibliographic record
Abstract
It is increasingly evident that the aquatic free-living infectious stages (cercariae) of trematodes (flatworms) serve as dietary sources and vectors of nutritionally-important polyunsaturated fatty acids (PUFA) from their molluscan intermediate hosts to higher trophic-level consumers. Here, I investigated whether a change in the algal diets of trematode-infected snails altered the fatty acid (FA) profiles of these hosts or their parasites, thereby affecting their nutritional values. While diet influenced their overall FA profiles, levels of certain essential fatty acids (EFA) were largely unaffected. This suggests that cercariae-mediated trophic transfers of EFA may not be dramatically affected by algal community shifts. I also investigated whether platyhelminths have the necessary enzymes for de novo omega-3 (n-3) PUFA biosynthesis, and found that select taxa (including prominent trematodes) have the relevant genomic sequences. If these genes are functional, then these parasites may be involved in the natural production of essential n-3 PUFA.
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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 | 0.001 |
| 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".