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Daniel Weaver

Daniel Weaver 2018


  • Ph D University of Maine 2017
  • MS North Carolina State University 2010
  • BS Virginia Tech 2007


I joined the Maine Coop Unit and Wildlife, Fisheries, Conservation Biology department in the summer of 2013. I'm originally from Virginia and in my free time I enjoy running, hiking, and kayaking.

Research Interests

Broadly I am interested in population and community dynamics and food web interactions in rivers and streams and those that bridge freshwater and marine ecosystems with an emphasis on fish, but also aquatic invertebrates and microorganisms. My PhD work demonstrated linkages between freshwater and marine ecosystems through the nutrient dynamics of anadromous sea lamprey. Currently I'm exploring other diadromous fishes including American eel and American shad and their migratory movement through fishways and dams. I’m working on developing a Bayesian forecasting model to predict the movement and behavior of outmigrating silver-phase American eel through dams. I work to develop a framework that will assist natural resource managers in the decision-making process of managing and conserving fisheries and ecosystem functions.

Research Publications

  • 81. Weaver, D., Ratten, S., Coghlan, Jr., S., and Sherwood, G., and Zydlewski, J. (2018) Age and growth of a native, lightly exploited, population of lake whitefish Coregonus clupeaformis in a small natural lake in Maine, USA. Northeastern Naturalist 25(4):599-610. DOI: 10.1656/045.025.0406 Download  | 
  • Weaver, D., Coghlan Jr., S., Greig, H., Klemmer, A., Perkins, L., and Zydlewski, J. (2018) Subsidies from anadromous sea lamprey (Petromyzon marinus)
    carcasses function as a reciprocal nutrient exchange between
    marine and freshwaters. River Research and Applications. DOI: 10.1002/rra.3291
    Download  | 
  • Weaver, D., Coghlan Jr., S. and Zydlewski, J. (2018) The influence of nutrients from carcasses of sea lamprey (Petromyzon marinus) on larval growth and spawner abundance. Fisheries Bulletin. 116:142–152, DOI: 10.7755/FB.116.2.3 Download  | 
  • See All ...

Technical Publications

  • Wallace, B.C., D.M. Weaver, and T.J. Kwak. 2011. Efficiency of baited hoop nets for sampling catfish in southeastern U.S. small impoundments. Pages 581-588 in P.H. Michaletz and V.H. Travnichek, editors. Conservation, ecology, and management of catfish: the second international symposium. American Fisheries Society Symposium 77, Bethesda, Maryland.

Current Staff

Federal Staff: 95

Masters Students: 249

Phd Students: 143

Post Docs: 55

University Staff: 247

5 Year Summary

Students graduated: 680

Scientific Publications: 1936

Presentations: 4251


Contact Information

Tel: (207) 581 - 2939 Personal Web Site:

Links of Interest

Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey