Oxygen uptake by wrack- and driftwood-acclimated populations of Platorchestia platensis (Amphipoda, Talitridae) during feeding and fasting
Bibliographic record
Abstract
Abstract Oxygen uptake rates were measured in fasted and fed Platorchestia platensis (Krøyer, 1845) to estimate the energy required for ingestion, digestion, absorption, assimilation and growth. A modified population specific dynamic action model (SDApop) was compared between two populations fed either wrack or driftwood. Results reject the null hypothesis: that both populations have equal energy requirements during digestion, as might be the case if native enzymes alone were involved. The alternate hypothesis that driftwood-fed P. platensis have a significantly lower SDA than wrack-fed ones was supported. Our oxygen uptake measurement experiments could not distinguish between two possible causes of the lower energetic costs associated with driftwood-fed P. platensis: driftwood as a poor-quality food and/or a microbial subsidy effect. Preliminary microbiological studies of P. platensis do support the subsidy effect, because cellulose-degrading bacteria and filamentous fungi were present in whole body tissues from the animal. Wrack and driftwood culture treatments of P. platensis supported a different cellulose-degrading microbiome between the two treatments.
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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 | 0.000 | 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) | 0.001 | 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".