UBC Graduate Research

Upstream, Again : A Salmon-Centered Urban Stream Restoration Strategy for Still Creek Watershed Zhai, Ang

Abstract

With the rapid urbanization of the Vancouver metropolitan area, natural hydrological systems have been severely disrupted. Streams have been buried and hardened, surface runoff intensified, and ecological corridors fragmented, resulting in reduced habitat quality, increased urban flood risk, and weakened ecological linkages between waterbodies, land, and life. The Brunette River-Burnaby Lake-Still Creek system was once an essential tributary for Pacific salmon migration and rearing within the Fraser River Basin. However, urban development has resulted in the burial of river channels, loss of salmon habitat, blockage of migratory pathways, and loss of natural shallows, deep pools, and vegetated floodplains in the river. This has further disrupted the ability of fish to migrate and weakened the cultural ties between Indigenous peoples and the water body. Upstream, Again focuses on Still Creek and its hydrological connections to Lake Burnaby and the Brunette River through daylighting, re-establishing a shallow-pool-turbulence system, and constructing stormwater -The project focuses on Still Creek and its hydrologic connections to Lake Burnaby and the Brunette River through daylighting, reconstruction of shallow pools and deep pools, construction of stormwater filtering wetlands, and shaping of waterfront cultural narratives. The project aims to restore salmon migration and ecological connectivity at the urban scale, enhance regional ecological diversity and climate resilience, and, in the long term, contribute to the sustainable revitalization of salmon populations and the reconstruction of urban ecology and culture.

Item Citations and Data

Rights

Attribution-NonCommercial-NoDerivatives 4.0 International