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Daniel Weaver

Daniel Weaver


  • 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 but spent the previous six years in North Carolina. I'm interested in fish and freshwater mussels, stream communities, and biotic interactions in riverine systems integrating basic and applied ecology. In my free time I enjoy running, hiking, and kayaking.

Research Interests

I am researching the ecological role of sea lamprey as a functional link between fresh water and marine ecosystems. The delivery and timing of marine-derived nutrients and energy (MDNE), from post-spawning carcasses, may be a critical process in stream food webs. We also wish to characterize the role of larvae or "ammocoetes" and their capacity to retain MDNE within streams. From our empirical results, we can develop models that predict minimum spawning sizes necessary to yield ecologically significant nutrient enriching effects, identify pathways by which MDNE are incorporated into stream biota, and quantify ammocoete feeding and metabolism. These studies may assist state and federal agencies and conservation groups in fisheries management decisions and determine whether actions should promote sea lamprey restoration as an integral component of dam removal and rehabilitation of other anadromous fishes.

Research Publications

  • Weaver, D., Coghlan, S., and Zydlewski, J. (2015) Decomposition of Sea Lamprey Carcasses: Temperature Effects, Nutrient Dynamics, and Implications for Stream Food Webs. Hydrobiologia. On line - DOI 10.1007/s10750-015-2302-5. Download  | 
  • Weaver, D.M., T.J. Kwak, and K.H. Pollock. 2014. Sampling characteristics and calibration of snorkel counts to estimate stream fish populations. North American Journal of Fisheries Management 34:1159-1166.
  • Weaver, D.M. and T.J. Kwak. 2013. Assessing effects of stocked trout on nongame fish assemblages in southern Appalachian Mountain streams. Transactions of the American Fisheries Society 142: 1495-1507.

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: 2

Masters Students: 1

Phd Students: 6

Post Docs: 1

University Staff: 14

5 Year Summary

Students graduated: 28

Scientific Publications: 53

Presentations: 251


Contact Information

Tel: (207) 581 - 1340


Maine Cooperative Fish and Wildlife Research Unit Cooperators

  1. Maine Department of Inland Fisheries and Wildlife
  2. U.S. Fish and Wildlife Service
  3. U.S. Geological Survey
  4. University of Maine
  5. Wildlife Management Institute