The diet and influence of the spionid polychaete Marenzelleria on \nbenthic communities in coastal Newfoundland
Bibliographic record
Abstract
Spionid polychaetes within the genus Marenzelleria are common inhabitants of \norganically enriched sediments in the Northern hemisphere. The species M. viridis has \nunique ventilation behaviors that create dynamic, fluctuating oxygen conditions in \nsediments, enhancing sulfate reduction. These behaviours may have negative effects on \nother macrofauna and positive effects on sulfur bacteria. A Marenzelleria species recently \nsampled in Newfoundland is here identified as M. viridis, and its abundance correlates \nlittle with abiotic factors and macrofaunal community composition at examined sites. \nVarious types of surrounding sediments (oxic and suboxic as well as M. viridis burrow \nlinings) contained surprisingly similar total prokaryotic, sulfate reducing and sulfur \noxidizing bacteria numbers. The high abundance of sedimentary prokaryotes, combined \nwith the stable isotopic composition of M. viridis tissues and lack of obvious symbionts, \nsuggest that, thanks to its ventilation behaviour, this species may “farm” sulfur bacteria in \nsediments and use them as a primary food source.
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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 | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| 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".