Correlation Between Stream Discharge and Dissolved Oxygen Concentration at Salish Creek, Vancouver Pacific Spirit Park
Bibliographic record
Abstract
Stream discharge and dissolved oxygen (DO) concentration are important abiotic factors for salmon. The existence of a linear correlation between these two abiotic factors could bear significance to the salmon ecosystem. In this study, we examined the existence of a linear correlation, or the lack thereof, between these two variables with our alternative hypothesis being that there is a linear correlation between the two variables. To do this, we measured DO concentration and stream discharge at 3 ripple water sites and 3 still water sites from upper Salish Creek. Stream discharge was calculated using the wetted depth, the wetted channel width, and the stream velocity. The correlation coefficient was found to be -0.516, suggesting a moderate negative trend. Using the Pearson’s Product Moment Correlation test, P-value was found to be 0.296, and at a significance level of 0.05, P-value > 0.05. Thus, we failed to reject the null hypothesis. This may be due to the increased amount of organic matter leading to greater biochemical oxygen demand (BOD) caused by the mixing of the water column at ripple water sites, and a greater BOD would result in a lower DO. We conclude that there was not enough statistical evidence to indicate that there is a linear correlation between stream discharge and DO concentration.
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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 | 0.000 |
| 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) | 0.003 | 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 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".