Jens. M. Nielsen

  • Education:
    • B.S. Biology, Aarhus University, Denmark, 2009
    • M.S. Biological Oceanography, Bergen University, Norway, 2011
    • Ph.D. Marine Ecology, Stockholm University, Sweden, 2016
  • Email:
  • Phone:
    • 206-526-4178
  • Location:
    • NOAA AFSC

    •  

    I work on projects examining a range of topics in biological oceanography and marine ecology, with an emphasis on linking findings to ecosystem management. That includes studies focusing on phytoplankton and primary production dynamics using mooring sensor technology, and large spatial scale satellite analyses of phytoplankton bloom timing and ice dynamics. I am interested in data analyses, and I often work with large datasets including high resolution moored sensors, ship survey, and satellite datasets. I am an interdisciplinary scientist and also work on several projects that link plankton and climate data to essential fish habitat modeling, as well as crab condition and distributions.

    Selected publications

    Nielsen J.M, Eisner, L.B, Lomas M.W, Bak-Hospital S, Lange P.K, Mordy C.W, Gann J, Wilson C, Stabeno P, Pelland N.A (in review) Transient shifts in Bering Sea shelf phytoplankton cell size structure in response to wind-induced mixing

    Litzow M. A, Fedewa E. J, Malick M. J, Connors B. M, Eisner, L. B, Kimmel D. G, Kristiansen T, Nielsen J.M, Ryznar E. R (2024) Human-induced borealization leads to the collapse of Bering Sea snow crab. Nature Climate Change, 1-4

    Friedland K. D, Nielsen J. M, Record N. R, Brady D.C, Morrow C. J (2024) The phenology of the spring phytoplankton bloom in the North Atlantic does not trend with temperature. Elementa: Science of the Anthropocene 12 (1)

    Nielsen J.M, Sigler, M.F, Eisner, L.B, Watson, J.T, Rogers, L.A, Bell, S.W, Pelland N.A, Mordy C.W, Cheng, W, Kivva, K, Osborner, S, Stabeno P (2024) Spring phytoplankton bloom phenology during recent climate warming on the Bering Sea Shelf. Progress in Oceanography 220, 103176

    Nielsen J.M, Pelland N.A, Bell S.W, Lomas M.W, Eisner L.B, Stabeno P, Harpold C, Stalin S, Mordy C.W (2023) Seasonal dynamics of primary production in the southeastern Bering Sea assessed using continuous temporal and vertical dissolved oxygen and chlorophyll-a measurements. Journal of Geophysical Research: Oceans, 128, 5

    Nielsen J.M, Copeman L.A. Eisner L.B, Axler K.E, Mordy C.W, Lomas M.W (2023) Seasonal phytoplankton fatty acid dynamics in the northern Bering-Chukchi Sea region. Deep Sea Research Part II: Topical Studies in Oceanography, 208, 105247

    Axler, K. E., Goldstein, E. D., Nielsen, J. M., Deary, A. L., & Duffy-Anderson, J. T. (2023). Shifts in the composition and distribution of Pacific Arctic larval fish assemblages in response to rapid ecosystem change. Global Change Biology.

    Nielsen J.M, Rogers L.A, Duffy-Anderson J.T, Deary A.L, Koslow J.A, Brodeur R.D, Auth T, Thompson A. R, Perry I, Galbraith M (2021) Responses of ichthyoplankton communities to the recent marine heatwave and previous climate fluctuations in several Northeast Pacific marine ecosystems. Global Change Biology 27 (3), 506-520

    Burian A, Nielsen J.M, Winder M (2020) Food quantity-quality interactions and their impact on zooplankton consumer behavior and trophic transfer. Ecological Monographs e01395.

    Nielsen, J. M., Rogers, L. A., Kimmel, D. G., Deary, A. L., & Duffy-Anderson, J. T. (2019). Contribution of walleye pollock eggs to the Gulf of Alaska food web in spring. Marine Ecology Progress Series, 632, 1-12.

    Nielsen J.M, Clare E.L, Hayden B, Brett M.T, Kratina P (2018) Diet tracing in ecology: method comparison and selection. Methods in Ecology and Evolution. 9.2: 278-291.

    Nielsen J.M, Popp B.N, Winder M (2015) Meta-analysis of amino acid stable nitrogen isotope ratios for estimating trophic position in marine organisms. Oecologia Vol 178: 631-642