Insights through response to live-strandings of harbour porpoise by the Vancouver Aquarium’s Marine Mammal Rescue Centre: the secretive life of a very common cetacean
Bibliographic record
Abstract
Since 2006, 6 live-stranded harbour porpoises have been recovered and presented to the Vancouver Aquarium’s Marine Mammal Rescue Centre for rehabilitation. Estimated age at stranding ranged from 6 weeks to 7 years, with younger animals stranding more frequently in the summer and early fall. Animals ranged in weight from 12.1 to 52 kg at admit. Each animal received 24-hour care by trained veterinary staff and rescue volunteers. Length of stay ranged from 2 to 168 days for animals that died during rehabilitation or that were released. Animals that strand as dependent calves are considered non-releasable and two perinatal animals that were successfully rehabilitated are permanently housed in a habitat at the Vancouver Aquarium. The causes of death in three animals include: severe metabolic compromise, hydrocephalus, and encephalomyelitis associated with Cryptococcus sp. An adult porpoise was successfully released after 168 days of care. Post-release monitoring via satellite-linked transmitter for 72 days showed wide-ranging use of the Salish Sea habitat with dives up to 254 m in depth and up to 5 min and 50 second duration. Medical challenges with stranded porpoises include diagnosis of the underlying cause of stranding, very high metabolic rate and nutritional demands particularly with neonates, and the effect of stranding on muscles and pulmonary function resulting in a requirement for intensive and prolonged supportive care. However, investigation into the causes of morbidity and mortality of live-stranded cetaceans provides detailed insight into the spread of pathogens (including diseases of zoonotic potential) and marine ecosystem health. In addition to evaluating the success of individual animals, tagging and tracking of stranded animals is an invaluable tool to investigate habitat use in animals that are normally very difficult to mark. Animals that live in public display aquaria are not only important for education but are also valuable resources for researchers for establishing physiologic normal values.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".