Seasonal occurrence of Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) in the St. Johns River, Florida
Bibliographic record
Abstract
The Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) is an anadromous species that historically occurred in the Atlantic Ocean along the North American coast from maritime Canada to the St. Johns River, Florida.A century of overharvesting and habitat loss has resulted in range-wide population declines, and in 2012 the species was listed under the U.S. Endangered Species Act.The extirpation of several individual populations-especially in the southeastern United States-was an important consideration in the final determination to list the species as endangered.Although historical data confirm the presence of Atlantic sturgeon in the St. Johns River, no recent evidence of a viable population exists for that river system.The primary objective of our study was to document the presence or absence of Atlantic sturgeon in the St. Johns River.During 2014-2015, we conducted nearly 200 hours of directed sampling with gill nets of different mesh sizes in the St. Johns River estuary but found no evidence of an extant population within the St. Johns River system.We did document the seasonal presence of several adult and subadult individuals that had been acoustically tagged by researchers working in other coastal systems, and that finding indicates that nonnatal individuals still use this estuary.
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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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.013 | 0.002 |
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; both teacher heads agree on what is shown here.
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".