Ecosystem-based juvenile Pacific salmon (Oncorhynchus spp.) trawl survey in the Strait of Georgia and associated waters, British Columbia, June 16-July 1, 2025 / by Jackie R. King, Yeongha Jung, Amy M.... : Fs97-13/1481E-PDF

"Fisheries and Oceans Canada (DFO) conducted an ecosystem-based trawl survey in the Strait of Georgia and associated waters from June 16 to July 1, 2025 on the CCGS Sir John Franklin. This study targeted juvenile Pacific Salmon (Oncorhynchus spp.). In 83 tows, there were 31 taxonomic groups caught in 3,332 kg of catch, with 7% juvenile Pacific Salmon caught by weight (230.39 kg). North Pacific Spiny Dogfish (Squalus suckleyi), adult Coho Salmon (O. kisutch), and Fried Egg Jellyfish (Phacellophora camtschatica) were the most abundant catch by weight. There were 5,028 individual lengths and 4,521 individual weights recorded, including all 5 Pacific Salmon species. Juvenile salmon species caught, in decreasing catch weight, were: Chum Salmon, Coho Salmon, Chinook Salmon, Sockeye Salmon and Pink Salmon, with catch distribution varied based on species. Common prey species for juvenile Pacific Salmon included unidentified fishes, crabs, euphausiids and other zooplankton. Biological samples for genetic stock composition, otoliths, energy density, and coded wire tags are archived at the Pacific Biological Station, Fisheries and Oceans Canada (Nanaimo, BC). Associated information on the physical oceanography (38 locations), water samples for chemistry and chlorophyll a along with zooplankton samples (38 locations) were returned to the Institute of Ocean Sciences (DFO, Sidney, BC)"--Abstract, page v.

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