Seymour River Estuary Habitat Restoration, North Vancouver, B.C.
Bibliographic record
Abstract
Industrial activity has significantly altered the form and function of the Seymour River estuary. Since the early 1900s, the lower river has been re-aligned, channelized, straightened, bank-armoured, and dredged. In the upper watershed, historical logging practices, urbanization and reservoir impoundment reduced inputs of woody debris, nutrients and sediment to the estuary. Native plant communities in the riparian and intertidal zones have been diminished, and non-migratory Canada geese have residualized in the estuary. As a result, the quantity and quality of functional estuarine habitat has been drastically reduced for resident and anadromous salmonids and native wildlife species. A collaboration of organizations and individuals, led by the British Columbia Institute of Technology: Rivers Institute, Tsleil-Waututh Nation and Seymour Salmonid Society, has worked since 2013 to rehabilitate aquatic and terrestrial habitat and restore natural estuarine processes, especially carbon storage and brackish water habitat. Primary project activities included forming an interdisciplinary project team, identifying land ownership, conducting sediment contaminant surveys, removing creosote-soaked structures, re-contouring the estuary topography, non-herbicidal removal of invasive plant species, re-vegetation of riparian and intertidal zones, installing a raptor nesting platform, and anchoring 150 large woody debris structures in the intertidal zone. Scheduled 2016 projects include naturalizing the west bank, re-creating a tidally-influenced salt water wetland, stabilizing an eroding near-vertical north bank of the back bay, and transplanting eelgrass and kelp. Numerous governments and NGOs contributed to this project with financial aid and in-kind support. The main contributors included the Habitat Conservation Trust Foundation, Metro Vancouver, Department of Fisheries and Oceans, Pacific Salmon Foundation and the District of North Vancouver. The public was engaged through community planting events, on-site signage and press releases. Students in the BCIT Ecological Restoration undergraduate program were involved throughout the project (and will continue post-construction monitoring) to apply their classroom-based learning while gaining valuable experience.
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 | 0.000 | 0.001 |
| Science and technology studies | 0.003 | 0.000 |
| Scholarly communication | 0.002 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.033 | 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".