BIOAVAILABILITY AND BIOACCUMULATION OF PAH IN AMPHIPODS EXPOSED TO REFERENCE AND HARBOR SEDIMENTS
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The amphipods Corophium volutator collected from inter-tidal mud flats away from urbanization display the presence of phenanthrene, while larger molecular weight PAHs were only detected in sediments. The latter compounds were abundant in sieved surface sediments collected from Halifax Harbor receiving combined road runoff and sewage effluents and a smaller fraction of the contaminants were bioavailable to amphipods. In laboratory exposures, the kinetics of contaminants uptake by amphipods displayed the steepest increase in concentration the first day of exposure, continued to increase and then decreased, reaching a steady state within a week. The depuration of PAH was more than ten times slower than observed for maximum uptake. Our study indicated the important role played by feeding in the bioavailability and toxicity of sediments. The PAH fingerprint associated with the grain size of particles needs pursuing to better delineate the exposure pathway of PAH to sediment dwelling organisms.
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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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it