Summary of zooplankton and fish data from the 2021 and 2022 James Bay expeditions / by Andrea Niemi, Krystal Woodard, David Capelle, Caitlin Allison, Andrew Majewski, Michelle Kamula.: Fs97-13/1467E-PDF

"In 2021 and 2022, the community composition and spatial distribution of marine zooplankton and fish were assessed at offshore stations in James Bay, Canada. This research was conducted as part of the James Bay Expedition, led by the University of Manitoba. Zooplankton was numerically dominated by the copepods Pseudocalanus spp. and Oithona spp., and the appendicularian Fritillaria borealis. The non-copepod contribution of zooplankton biomass varied between the study years, with a greater contribution of hydrozoa in 2021 and pelagic sea snails (Limacina spp.) in 2022. In both years, fish abundance and biomass was dominated by Eeplout species (Zoarcidae spp.) and to a lesser extent Stout eelblenny (Anisarchus medius). Two anadromous species, Osmerus mordax and Gasterosteus aculeatus, were collected at low numbers near river mouths. The diversity and distribution data presented herein contribute to a growing body of Arctic biodiversity surveys aimed at assessing long-term anthropogenic impacts in the region and supports current marine conservation efforts"--Abstract, page vi.

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