Feeding ecology and movement patterns of Atlantic Sturgeon in Minas Basin, Bay of Fundy
Bibliographic record
Abstract
Atlantic sturgeon are a highly migratory, anadromous species known to seasonally aggregate. The Minas Basin, Bay of Fundy, is a summer terminus for a large mixed-stock feeding aggregation consisting of primarily sub-adult and adult Atlantic sturgeon from Canada and the USA. The movement and feeding behaviour of Atlantic sturgeon was examined in a macro-tidal estuary, and an attempt to link these behaviours to their physical and biotic drivers was made. Diet analysis revealed that tube-dwelling polychaetes comprised the majority of the Atlantic sturgeon diet. Quantification of movement patterns and analysis of fine-scale spatial data revealed three distinct behaviours exhibited by acoustically tagged Atlantic sturgeon. The first movement pattern was indicative of foraging, and the second of searching over the intertidal mudflats, whereas the third movement type suggested transitory behaviour moving past the general study site. Increased crepuscular activity was also identified revealing a diel pattern of behaviour not previously described for Atlantic sturgeon in the marine environment. Quantitative identification of foraging behaviour and diet analysis indicate that the Kingsport Beach area in the Southern Bight of the Minas Basin is an important feeding site for Atlantic sturgeon. More information on the basic biology of the Atlantic sturgeon is required in order to develop a holistic approach to the management and conservation of this trans-boundary species, particularly at mixing sites such as Minas Basin.
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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 | 0.001 | 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".