A history of research on the early marine life of Pacific salmon off Canada’s Pacific
Bibliographic record
Abstract
Abstract: We review studies of the early ocean period of salmon life history conducted in the coastal areas off Canada’s West Coast. The role of the ocean in the dynamics of salmon popula-tions has received considerably less study than their life cycle in fresh water, even though Pacific salmon in general spend more time in the ocean than in fresh water and the survivals in the ocean are extremely low and variable. Feeding, growth and distribution studies from the late 1950s until the present have contributed to an improved appreciation of biology of salmon during the marine phase of their life history. However, conclusions about the processes that cause the high and variable mortality in the ocean remain speculative. How fishing impacts interact with natural proc-esses also remain to be clarified. Recent studies have demonstrated that ocean and climate con-ditions are important contributors to the total marine mortality of a number of species, and to the stock and recruitment relationship. We suggest that it is time to conduct the definitive studies that will identify the processes that regulate the survival of Pacific salmon throughout their entire life cycle. We propose that an international effort to study the early marine period is the way to change the current beliefs and speculations into explanations.
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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 | 0.002 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.011 |
| Science and technology studies | 0.003 | 0.003 |
| Scholarly communication | 0.003 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".