Intraspecific polymorphism of mitochondrial cytochrome b gene fragment of the chum salmon (Oncorhynchus Keta Walbaum) from the rivers of eastern Kamchatka and the northern coast of the Sea of Okhotsk
Bibliographic record
Abstract
The nucleotide sequence of a gene fragment of cytochrome b ( cytb ) was determined, and data on the variability of this mtDNA region in chum salmon from certain populations on the northern coast of the Sea of Okhotsk and eastern Kamchatka populations were obtained. It was shown that the Kamchatka chum salmon population is characterized by the lowest values of nucleotide (π) and haplotype (h) diversity. The higher level of genetic diversity of the Sea of Okhotsk population is most likely due to the history of formation and distribution. Statistically significant ( p < 0.001) genetic differences (Fst) between the studied groups of populations were found. The Okhotsk and Kamchatka chum salmon populations differ from the Canada chum salmon population in the structure of the cytb gene and the amino acid sequence of the studied fragment of this enzyme.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".