Body condition and diet data for gamefish in 15 hardwater lakes of southern Saskatchewan, Canada
Bibliographic record
Abstract
Mitigating threats of aquatic invasive species in lakes requires holistic insights into the biological, physical, and chemical conditions sustaining fish communities. This study establishes the ecological baseline conditions for three key gamefishes—walleye, northern pike, and yellow perch—across 15 hardwater prairie lakes in south-central Saskatchewan, Canada, that are threatened by zebra mussel invasion. We employed stomach content analysis to evaluate diet composition and ontogenetic nutritional shifts in adult fishes and assessed how fish size and environmental factors influence body condition. Adult walleye transition from a diet of amphipods to fishes as they grow, demonstrating greater dietary flexibility compared to perch and pike, which maintain a stable diet of chironomids and fish, respectively. While walleye and pike decline in body condition with size, perch maintain a consistently high body condition as they grow. Lake productivity and alkalinity are important predictors of body conditions of adult walleye and perch in hardwater prairie lakes. Given the combined threats of zebra mussel invasions, climate change, and potential local forage fish scarcity, novel management strategies are essential.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 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".