Investigation into microbial methymercury production in Kejimkujik National Park, Nova Scotia, Canada
Bibliographic record
Abstract
In the mid 1990's, it was noticed that the loon population in Kejimkujik National Park was decreasing. Subsequent research determined that the loons had high levels of methylmercury, which was affecting their behavior and reproduction. It has been reported that the amount of methylmercury in biota in Kejimkujik National Park is at levels considered unsafe to wildlife. In order to ascertain the importance of sulfate- reducing bacteria to mercury methylation in Kejimkujik National Park, we studied Big Dam East and Big Dam West lakes and Thomas Meadow Brook, which runs into Big Dam West. The aim of this study was to first of all determine the bacterial productivity of these watersheds and then try and ascertain the amount of bioavailable mercury present using bioluminescent sensors. Finally, the most probable number (MPN) technique was used in order to estimate the number of sulfate-reducing bacteria in the water and sediment. The microbial productivity of the system was within normal ranges for these types of lakes. Test results of mud from Thomas Meadow Brook show a high rate of mercury methylation and methane formation, while peat samples from Thomas Meadow Brook show very little mercury methylation and methane formation. The results from the biosensors and the MPN were inconclusive.
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How this classification was reachedexpand
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 | 0.001 |
| 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) | 0.002 | 0.001 |
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 teacher head, 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".