Somniosus pacificus Bigelow & Schroeder 1944
Bibliographic record
Abstract
Somniosus pacificus Bigelow & Schroeder, 1944. Mud Shark or Pacific Sleeper Shark. To at least 4.3 m (14.1 ft) (Ebert 1987), with unconfirmed, deep-water observations to 7.0 m (23 ft) (Yano et al. 2007). Taiwan to Bering Sea to south-eastern Chukchi Sea (66°20’ N, 165°47’W), and on Russian side of southern Chukchi Sea (Mecklenburg and Steinke 2015) to Pacific Ocean off southern Baja California (Compagno 1984). Possible hybrids of this species and Somniosus microcephalus (Bloch & Schneider, 1801) have been taken somewhat west of Baffin Bay, eastern Canada (Hussey et al. 2015). There is one anecdotal report of a large shark (possibly this species) that was taken near Tuktoyaktuk, northwest Territory, Canada (Reist in Coad and Reist 2018). Reports of S. pacificus as far south as Pisco, Peru (Chirichigno and Vélez 1998) and Bahía de San Antonio, Chile (33°35’S) (Brito 2004a) are not considered valid and probably represent S omniosus antarcticus Whitley, 1939 (Ebert et al. 2009). Depth: surface, intertidal to about 2,205 m (7,232 ft) (min.: Bright 1959; max.: Yeh and Drazen 2009); at the greatest depths in the southern part of the range.
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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.024 | 0.005 |
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".