Browsing by Subject "ice-off"

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    Data in support of "Phenology, food webs, and fish: the effects of loss of lake ice across multiple trophic levels"
    (2025-02-21) Rounds, Christopher I; Manske, John; Feiner, Zachary S; Walsh, Jake R; Polik, Catherine A; Hansen, Gretchen J A; round060@umn.edu; Rounds, Christopher; University of Minnesota Fisheries Systems Ecology Lab
    This dataset and associated analyses are made to accompany the manuscript, "Phenology, food webs, and fish: the effects of loss of lake ice across multiple trophic levels". Accompanying data is split into components with distinct analyses (lake ice-off, phytoplankton, zooplankton, walleye spawning, walleye young-of-year recruitment, and walleye abundance). Plankton data is collected from Ramsey County, MN, USA lakes and filtered only to include open water season. Walleye spawning is collected by DNR staff as part of egg-take operations in the spring, walleye young-of-year recruitment is indexed by fall electrofishing and was filtered according to (Kundel et al. 2023). Walleye adult abundance is indexed through gillnets during the open water season and has minimum effort and sampling time of year filtering (see MNDNR 2017), unaged fish were applied a HALK to allow for cohort effects to be modeled (based on Frater et al. 2024). All analyses are done using the package mgcv in R and visualized using ggplot2.