Biophysical and ecological overview of the Caamaño Sound and Douglas Fjord system network zones / by Amy D. Liu [and 17 others].: Fs97-6/3664E-PDF

"The Caamaño Sound and Douglas Fjord System Network Zones were identified as areas of ecological and cultural significance as part of the Northern Shelf Bioregion Marine Protected Area Network planning process (led by the governments of Canada, British Columbia, and 15 First Nations). These Network Zones are situated in the nearshore North Coast region in the traditional territories of the Gitga'at, Gitxaała, Haisla, and Kitasoo Xai'xais Nations. This Biophysical and Ecological Overview report compiles available knowledge and data on the physical and biological oceanography, climate change projections, human uses, and ecological diversity that is present within the seven Network Zones. Network-level Ecological and Cultural Conservation Priorities are highlighted throughout the report. Data presented in this report incorporate information gathered in the data compilation step of the Northern Shelf Bioregion Marine Protected Area Network planning process, in addition to regionally-specific data and knowledge and projections of two climate change scenarios. Knowledge gaps, recommendations, and the sensitivities and resiliencies of ecological features and taxonomic groups are detailed. The Network Zones have a well-established estuarine circulation supported by large freshwater inputs from rain and snowmelt. Unlike many fjord systems, deep waters are not hypoxic due to annual renewals every spring and summer. Although this remote area has comparatively less commercial and recreational fishery activity compared to other parts of the province, a substantial amount of vessel traffic passes through several zones – the most noticeable route being the Inside Passage. The distribution of biogenic habitats and species is variable throughout the Network Zones from the transition of the outer continental shelf to fjord systems. Key ecosystem features include kelp forests, gadza k'aw/eelgrass and surfgrass beds, estuaries, and areas of high rugosity. The many nearshore habitats provide shelter for the growth of juvenile fishes and invertebrates and spawning habitats for forage fishes and salmonids. Notably, the Network Zones encompass important habitats for Killer, Fin, and Humpback whales and other marine mammals. Many culturally and spiritually significant areas are also present, including contemporary harvesting sites, historical settlements, and the community of Txałgiu/Hartley Bay, home of the Gitga'at Nation. Connectivity within the Network Zones, between existing protected areas, and within the Northern Shelf Bioregion is described. This report is intended to inform research, monitoring, policy, management, and subsequent steps in developing a potential Marine Protected Area under Canada's Oceans Act"--Abstract, page xvii.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.947180&sl=0

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