Proceedings of the Expert Panel Meeting on the Potential Risks Associated with Horizontal Gene Transfer from Novel Aquatic Organisms
Bibliographic record
Abstract
Under the New Substances Notification Regulations (Organisms) (NSNR, Organisms) of the Canadian Environmental Protection Act, 1999 (CEPA 1999), research and development (R&D) involving animate products of biotechnology is exempt from regulatory notification if there is no release of the living organism, material from the organism involved in toxicity, or genetic material from the organism. This exemption is currently being reviewed by Environment Canada and Health Canada.\nFisheries and Oceans Canada (DFO) administers the NSNR for aquatic organisms with novel traits on behalf of Environment Canada and Health Canada. This includes the conduct of assessments of potential risks to the environment and human health of aquatic organisms with novel traits. In addition, DFO is developing new regulations specific to novel aquatic organisms. The potential risk associated with horizontal gene transfer (HGT) of genetic material from aquatic organisms with novel traits is an issue\nthat requires consideration in the design of these regulations.\nTo address this, Fisheries and Oceans Canada commissioned a literature review and discussion document of the persistence of DNA in the environment, mechanisms for HGT, known occurrence of HGT, and potential risks associated with HGT. A scientific panel of experts was convened to address specific questions, based on the discussion document, on potential risks associated with HGT. This report summarizes the considerations and output from the expert panel and will be used to inform the regulatory amendment and the development of new regulations for novel aquatic\norganisms.\nHorizontal gene transfer is a very rare event that is more likely between prokaryotes than between eukaryotes or eukaryotes and prokaryotes.\nThe potential consequences of HGT are important. Case-by-case evaluation of potential consequences of HGT from novel organisms will help to identify what further information may be required to complete an environmental risk assessment. This tiered approach will ensure that the allocation of risk management is in line with potential identified risks.
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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 | 0.042 | 0.029 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.002 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.004 | 0.001 |
| Scholarly communication | 0.004 | 0.003 |
| Open science | 0.003 | 0.003 |
| Research integrity | 0.013 | 0.006 |
| Insufficient payload (model declined to judge) | 0.011 | 0.004 |
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".