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Steve Bollens

Steve Bollens

Field of Study: Aquatic Ecology
Title: Professor and Director of the Meyer’s Point Environmental Field Station
Degrees: Ph.D., Biological Oceanography, University of Washington
Homepage: Homepage/Lab Web Site Link
Google Scholar: Google Scholar
Office: Science (VSCI) 230Q
Phone: 360-546-9116
Mailing Address: School of Biological Sciences
Washington State University
14204 NE Salmon Creek Ave
Vancouver, WA 98686-9600

Research Interests

My research is broadly concerned with the ecology of marine and estuarine zooplankton and fish, and spans the sub-disciplines of behavior, population biology, community ecology and ecosystem dynamics. My research often has an applied aspect to it, touching upon such areas as conservation biology, restoration ecology, fisheries oceanography, and global change. I employ a wide variety of approaches to “doing science”, including field (observational), modeling and experimental techniques. Locations of my current or recent projects include estuaries of the northeast Pacific (CA, OR, WA, and BC), Georges Bank/Northwest Atlantic, the Arabian Sea, the Florida Keys, and the Bering Sea. These projects are funded by a wide range of federal and state agencies, including the National Science Foundation (NSF), the Environmental Protection Agency (EPA), the Office of Naval Research (ONR), the National Oceanic and Atmospheric Administration (NOAA), the United States Geological Survey (USGS), and the CALFED Bay/Delta Program.

Representative Publications:

  • Breckenridge+, J., S. M. Bollens, G. C. Rollwagen-Bollens, and C. Roegner. 2015. Plankton assemblage variability in a river-dominated temperate estuary during late spring (high-flow) and late summer (low-flow) periods. Estuaries and Coasts, 38: 93-103. DOI: 10.1007/s12237-014-9820-7
  • Lee*, T. A., G. Rollwagen-Bollens, S. M. Bollens, and J. Faber-Hammond. 2015. Environmental influence on cyanobacteria abundance and microcystin toxin production in a shallow temperate lake. Ecotoxicology and Environmental Safety, 114: 318-325. DOI: 10.1016/j.ecoenv.2014.05.004
  • Emerson*, J. E., S. M. Bollens, and T. Counihan. 2015. Seasonal dynamics of zooplankton in Columbia-Snake River system reservoirs, with special reference to the invasive copepod Pseudodiaptomus forbesi. Aquatic Invasions, 10: 25–40.
  • Dexter*, E., S. M. Bollens, G. Rollwagen-Bollens, J. Emerson*, and J. Zimmerman+. 2015. Persistent versus ephemeral invasions: 8.5 years of zooplankton community dynamics in the Columbia River. Limnology and Oceanography, 60: 527–539.
  • Lee*, T. A., G. C. Rollwagen-Bollens, and S. M. Bollens. 2015. ­­­The influence of water quality variables on cyanobacteria blooms and phytoplankton community composition in a shallow temperate lake. Environmental Monitoring and Assessment, 187(6): 315. DOI: 10.1007/s10661-015-4550-2.
  • Bowen*, A., G. Rollwagen-Bollens, S. M. Bollens and J. Zimmerman+. 2015. Feeding of the invasive copepod Pseudodiaptomus forbesi on natural microplankton assemblages in the lower Columbia River. Journal of Plankton Research, 37: 1089-1094. DOI: 10.1093/plankt/fbv078
  • Adams*, J., S. M. Bollens, and J.G. Bishop. 2015. Predation on the invasive copepod, Pseudodiaptomus forbesi, and native zooplankton in the lower Columbia River: An experimental approach to quantify differences in prey-specific feeding rates. PLoS One, DOI: 10.1371/journal.pone.0144095
  • Lee*, T.A., S. M. Bollens, G. Rollwagen-Bollens, and J. E. Emerson*+. 2016. The effects of eutrophication and invasive species on zooplankton community dynamics in a shallow temperate lake. Fundamental and Applied Limnology, 188: 215-231.
  • Rose*, V., G. Rollwagen-Bollens, and S. M. Bollens. 2017. Interactive effects of phosphorus and zooplankton grazing on cyanobacteria blooms in a shallow temperate lake. Hydrobiologia, 788: 345-359. DOI: 10.1007/s10750-016-3011-4
  • Haskell*, C. A, D. A. Beauchamp, and S. M. Bollens. 2017. Trophic interactions and consumption rates of subyearling Chinook Salmon and nonnative juvenile American Shad in Columbia River reservoirs. Transactions of the American Fisheries Society, 2: 291-298. DOI: 10.1080/00028487.2016.1264997.
  • Counihan, T. D. and S. M. Bollens. 2017. Early detection monitoring for larval dreissenid mussels: How much plankton sampling is enough? Environmental Monitoring and Assessment, 189: 98. DOI: 10.1007/s10661-016-5737-x
  • Haskell*, C. A., D. A. Beauchamp, and S. M. Bollens. 2017. Linking functional response and bioenergetics to estimate juvenile salmon growth in a reservoir food web. PLoS ONE 12(10): e0185933. DOI: 10.1371/journal.pone.0185933
  • Hassett*, W., S. M. Bollens, T. D. Counihan, G. Rollwagen-Bollens, J. Zimmerman+, and J. Emerson*+. 2017. Veligers of the invasive Asian clam Corbicula fluminea in the Columbia River Basin: Broadscale distribution, abundance and ecological associations. Lake and Reservoir Management, 33: 234-248. DOI: 10.1080/10402381.2017.1294218
  • Dexter*, E., S. M. Bollens, J. Cordell, H. Y. Soh, G. Rollwagen-Bollens, S. Pfeifer, J. Goudet and S. Vuilleumier. 2018. A genetic reconstruction of the invasion of the calanoid copepod Pseudodiaptomus inopinus across the North American Pacific Coast. Biological Invasions, 20: 1577–1595. DOI: 10.1007/s10530-017-1649-0.
  • Rollwagen-Bollens, G., T. Lee*, V. Rose*, and S. M. Bollens. 2018. Beyond Eutrophication: Vancouver Lake, WA, USA as a Model System for Assessing Multiple, Interacting Biotic and Abiotic Drivers of Harmful Cyanobacterial Blooms. Water. 10(6), 757; DOI: 10.3390/w10060757
  • Dexter*, E., S. M. Bollens, and G. Rollwagen-Bollens. 2018. The trouble with stress: A flexible method for the evaluation of nonmetric multidimensional scaling. Limnology and Oceanography: Methods. 16: 434-443. DOI: 10.1002/lom3.10257
  • Perkins*, K.A., G. Rollwagen-Bollens, S.M. Bollens, and J.A. Harrison. 2019. Variability in the vertical distribution of chlorophyll in a spill-managed temperate reservoir. Lake and Reservoir Management, 35: 119–126;
  • Bolam*, B.A., G. Rollwagen-Bollens, and S.M. Bollens. 2019. Feeding rates and prey selection of the invasive Asian clam, Corbicula fluminea, on microplankton in the Columbia River, USA. Hydrobiologia, 833: 107-123,
  • Rollwagen-Bollens, G., T. Holmlund, S.M. Bollens, J. Wait, J. Zimmerman+, K. Connelly*, and L. Bargmann. 2019. Engaging high school students as collaborators in ecological investigation of the Columbia River Estuary: Lessons from a transdisciplinary university-high school partnership. Limnology and Oceanography: Bulletin, 28: 45-51.
  • Nolan*, S., S.M. Bollens, and G. Rollwagen-Bollens. 2019. Diverse taxa of zooplankton inhabit hypoxic waters during both day and night in a temperate eutrophic lake. Journal of Plankton Research, 41: 431–447.
  • Rose*, V., G. Rollwagen-Bollens, S. M. Bollens, and J. Zimmerman+. 2019. The effects of run-of-river dam spill on Columbia River microplankton. River Research and Applications, 35: 1478-1488.
  • Dexter*, E., and S. M. Bollens. 2020. Zooplankton invasions in the early 21st Century: A global survey of recent studies and recommendations for future research. Hydrobiologia, 847: 309-319.
  • Dexter*, E., S. M. Bollens, J. Cordell, and G. Rollwagen-Bollens. 2020. Zooplankton invasion on a grand scale: Insights from a 20-year time-series across 38 Northeast Pacific estuaries. Ecosphere, 11(5):e03040.
  • Rollwagen-Bollens, G.C., S. M Bollens, E. Dexter*, and J. Cordell. 2020. Biotic vs. abiotic forcing of plankton assemblages varies with season and size class in a large temperate estuary. Journal of Plankton Research, 42: 221–237.
  • Dexter*, E., S. M. Bollens, and G. Rollwagen-Bollens. 2020. Native and invasive zooplankton show differing responses to decadal-scale increases in maximum temperatures in a large temperate river. Limnology and Oceanography Letters, 5: 403-409.
  • Connelly*, K. A., G. Rollwagen-Bollens, and S. M. Bollens. 2020. Seasonal and longitudinal variability of zooplankton assemblages along a river-dominated estuarine gradient. Estuarine, Coastal and Shelf Science, Vol 245,
  • Dexter*, E., S. Katz, S. M. Bollens, G. Rollwagen-Bollens and S. Hampton. 2020. Modeling the trophic impacts of invasive zooplankton in a highly invaded river. PLOS ONE 15(12): e0243002.
  • Rollwagen-Bollens, G. C., B. A. Bolam*, S. M. Bollens, S. Henricksen*, C. Sandison, and J. Zimmerman+. 2021. Temperature-dependent functional response of the invasive Asian clam, Corbicula fluminea, feeding on natural phytoplankton. Inland Waters, 11: 250-256.
  • Rose*, V., G. Rollwagen-Bollens, S. M. Bollens, and J. Zimmerman+. 2021. Seasonal and interannual variation in Lower Columbia River phytoplankton (2005-2018): Environmental variability and a decline in large bloom-forming diatoms. Aquatic Microbial Ecology, 87: 29-46.
  • Rose*, V., G. Rollwagen-Bollens, S. M. Bollens, and J. Zimmerman+. 2021. Effects of nutrients and grazing on phytoplankton blooms and microplankton assemblage structure in four temperate lakes spanning a eutrophication gradient. Water. 13, 1085.
  • Bollens, S. M., J. Harrison, M. Kramer, G. C. Rollwagen-Bollens, T. Counihan, S. Robb-Chavez*, and S. Nolan*+. 2021. Calcium concentrations in the lower Columbia River, USA, are generally sufficient to support invasive bivalve spread. River Research and Applications, 37: 889-894.
  • Hassett*+, W., J. Zimmerman+, G. Rollwagen-Bollens, S. M. Bollens, and T. D. Counihan. 2021. An experimental evaluation of the efficacy of imaging flow cytometry (FlowCam) for detecting invasive dreissenid and corbiculid bivalve veligers. Lake and Reservoir Management, 37: 406-417.
  • Henricksen*, S., and S. M. Bollens. 2022. Abundance and growth of the invasive Asian clam, Corbicula fluminea, in the lower Columbia River, USA. Aquatic Invasions. 17: 36-56.
  • Rollwagen-Bollens, G. K. Connelly*, S. M. Bollens, J. Zimmerman+and A.C. Coker*. 2022. Nutrient control of phytoplankton abundance and biomass, and microplankton assemblage structure, in the lower Columbia River (Vancouver, Washington, USA). Water, 14, 1599.
  • Jacobs*, J., G. Rollwagen-Bollens, and S. M. Bollens. 2022. Feeding dynamics of the invasive calanoid copepod, Pseudodiaptomus inopinus, in two northeast Pacific estuaries. Aquatic Biology, 31:49-64.