From the source metadata record: Fisheries and Oceans Canada’s (DFO’s) conditions of licence for marine finfish aquaculture contain monitoring and intervention requirements to minimize the potential exposure of wild and farmed fish to sea lice. The Industry Sea Lice Abundance Counts report is updated monthly. It shows which Atlantic salmon farms were actively raising fish during the month and the results of industry's monthly sea lice monitoring. Spreadsheets simplified by the data centre team are available for download.

The data provided by the authors of this study describe microplastic concentrations found in juvenile Chinook (Oncorhynchus tshawytscha), surface water and nearshore sediment samples in estuaries throughout eastern Vancouver Island. Abstract from publication: Microplastics are a significant issue in the world's oceans. These small plastic particles (<5 mm in size) are becoming globally ubiquitous in the marine environment and are ingested by various fish species. Here we investigate the incidence of microplastics in juvenile Chinook salmon and their nearshore marine environments on the east coast of Vancouver Island, British Columbia. We completed a series of beach seines, plankton tows and sediment cores in nearshore areas of importance to juvenile salmon. Microplastics were extracted from fish, water and sediment samples and concentrations were quantified. Microplastics analysis, consisting predominantly of fibrous plastics, showed juvenile Chinook salmon contained 1.2 ± 1.4 (SD) microplastics per individual while water and sediment samples had 659.9 ± 520.9 microplastics m-3 and 60.2 ± 63.4 microplastics kg-1 dry weight, respectively. We found no differences in microplastic concentrations in juvenile Chinook and water samples among sites but observed significantly higher concentrations in sediment at the Deep Bay site compared to Nanaimo and Cowichan Bay sites. Chinook microplastic concentrations were relatively low compared to literature values and, given the size and type of microplastics we observed, are unlikely to represent an immediate threat to fish in this area. However, microplastics less than 100 μm in size were not included in the study and may represent a greater threat due to their ability to translocate through tissues.

This dataset displays the spawning zone of influence (ZOI) for all salmon Conservation Units (CUs) assessed in the Pacific Salmon Explorer. A spawning zone of influence (ZOI) is the area of land that drains into the spawning habitat of a specific salmon CU. Methods to delineate spawning ZOIs vary by species and region (refer to Appendix 5 in Methods for Assessing Status and Trends in Pacific Salmon Conservation Units and their Freshwater Habitats) but the spawning zone of influence (ZOI) is most commonly defined as the 1:20,000 Freshwater Atlas assessment watersheds within the CU boundary where species-specific spawning is known to occur.

Regional and Municipal Parks in and around the Strait of Georgia and the Fraser Valley. Municipalities included: Abbotsford, Burnaby, Campbell River, CRD, Chilliwack, Colwood, Coquitlam, Courtenay, Langley, Maple Ridge, Metro Vancouver, Nanaimo, Regional District of Nanaimo, New Westminster, North Vancouver, Port Moody, Saanich, Sunshine Coast, Surrey, Vancouver, Victoria, West Vancouver, White Rock.