Intertidal Habitat Use, Population Characteristics, Movement, and Exploitation of Striped Bass in the Inner Bay of Fundy, Canada
Bibliographic record
Abstract
Abstract Striped bass Morone saxatilis were sampled from intertidal weirs in Minas Basin and Cobequid Bay, Bay of Fundy, to determine tidal behavior, population characteristics, movements, and exploitation. During 1985 and 1986, 1,864 striped bass ranging from 69 to more than 600 mm in fork length were captured in three commercial weirs from May to December along the north shore of Minas Basin and Cobequid Bay. Catches were lowest during early summer and highest in late summer and fall. Catches were greatest when low tide occurred from dusk to midnight (1800-2400 hours), a second peak being observed when low tide occurred from dawn to late morning. Largest weir catches at a clear-water site (Minas Basin) were associated with spring tides (0.5-0.9 m above mean low water [MLW]), but at turbid water sites (Cobequid Bay) the best catches were during neap tides (1.0-1.7 m above MLW). The largest striped bass were captured from June to August (280-610 mm), but age-0 (69-94-mm) and age-1 (141-240-mm) fish dominated the catches in September and October. A total of 1,431 striped bass were marked: 1,163 in 1985 and 268 in 1986. The recapture rate was 21.3% for fish released in 1985 and 8.9% for those released in 1986; 55.8% were recreational recaptures, and 44.2% came from commercial fisheries. The mean day of recapture from all sources (recreational and commercial) in marine waters of the Bay of Fundy was September 3, but for striped bass recaptured in local, freshwater overwintering sites it was May 21. The average distance moved for striped bass recaptured in Minas Basin and local watersheds was 55 km, and for long-distance movement it was 780 km. Tags were returned from Nova Scotia, New Brunswick, Massachusetts, Rhode Island, Connecticut, New Jersey, and Virginia. All tag returns from outside Minas Basin were from fish larger than 390 mm at time of release. The fastest travel time was 17.8 km/d by a fish recaptured in Rhode Island 45 d after release. Our findings demonstrate that the striped bass frequenting Minas Basin and Cobequid Bay each summer consist of a portion that overwinters in freshwater around the Bay of Fundy and a portion that migrates southward along the eastern coast of the United States.
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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 | 0.001 |
| Science and technology studies | 0.001 | 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".