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State of the Physical, Biological and Selected Fishery Resources of Pacific Canadian Marine Ecosystems in 2020

Jennifer L. Boldt, Ania Javorski and Peter C. Chandler (Editors)

State of the Physical, Biological and Selected Fishery Resources of Pacific Canadian Marine Ecosystems in 2020
(PDF, 18 MB)

Abstract

Fisheries and Oceans Canada is responsible for the management and protection of marine resources on the Pacific coast of Canada. Oceanographically there is strong seasonality in coastal upwelling and downwelling, considerable freshwater influence, and variability from coupling with events and conditions in the tropical and North Pacific Ocean. The region supports ecologically and economically important resident and migratory populations of invertebrates, groundfish, pelagic fishes, marine mammals and seabirds.

Since 1999 an annual State of the Pacific Ocean meeting has been held by DFO to bring together the marine science community in the Pacific Region and present the results of the most recent year’s monitoring in the context of previous observations and expected future conditions. The workshop to review ecosystem conditions in 2020 was convened virtually, March 2-4, 2021, due to the COVID-19 pandemic. This technical report includes submissions based on presentations given at the meeting and a few poster summaries.

Climate change is a dominant pressure acting on North Pacific marine ecosystems, causing, for example, increasing temperatures, deoxygenation, and acidification, and changes to circulation and vertical mixing. These pressures impact ecosystem nutrient concentrations and primary and secondary productivity, which then affect higher trophic levels through the food chain.

Accessibility notice

This document is available in PDF format. If this document is not accessible to you, please contact the DFO Library to obtain another appropriate format, such as regular print, large print, Braille or audio version.

Active offer to produce in both official languages

This report uses scientific and technical terms and is published in the official language of the working group or scientific expert that produced the document. If this document is not accessible to you in the official language of your choice, please contact: Jennifer.Boldt@dfo-mpo.gc.ca.

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