Integrated pelagic ecosystem survey on the Vancouver Island continental shelf, July 4 - August 2, 2022 / by Jackie R. King, Amy M. Tabata, Hilari Dennis-Bohm, Tyler B. Zubkowski, Kelsey L. Flynn, and Jennifer...: Fs97-6/3545E-PDF

"Fisheries and Oceans Canada (DFO) mandates and policies require the development and application of an ecosystem based approach to fisheries management as well as cumulative risk assessments. Required to meet these mandates is a comprehensive understanding of factors that affect the distribution and abundance of fish and prey species, trophic structure, predator-prey dynamics, and species interdependencies. The Integrated Pelagic Ecosystem Survey (IPES) is the only broad-scale pelagic ecosystem survey in the Pacific Region that collects this type of information. The goal of the IPES is to understand factors affecting the distribution, abundance, and food web linkages of pelagic fish species, such as Pacific Herring and juvenile Pacific Salmon. To accomplish this goal, we have conducted a random stratified survey with 8 strata on the north and west continental shelf of Vancouver Island since 2017. IPES provides comprehensive biological sampling and stomach analyses of all caught species, along with physical and biological oceanographic sampling. The survey produces data required for ecosystem monitoring and modelling, data for SARA-listed species, and supports both DFO's State of the Pacific Ocean reporting and the State of the Salmon program. This report summarizes the IPES design, methods, and results from the 2022 survey"--Abstract, page vi.

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