Henry, C.J. and R. Ruelle. 1992. A study of pallid sturgeon and shovelnose sturgeon
reproduction. U.S. Fish and Wildlife Service. 19 pp.
Ruelle, R. 1991. A contaminant evaluation of interior least tern and piping plover eggs
and chicks on the Missouri River, South Dakota. U.S. Fish and Wildlife Service. 18 pp.
Ruelle, R. 1991. A pesticide and toxicity evaluation of wetland waters and sediments on
National Wildlife Refuges in South Dakota. U.S. Fish and Wildlife Service. Contaminant
Report Number: R6/804P/91. 27 pp.
Ruelle, R. and C. Henry. 1993. Contaminant and toxicity evaluation of National Wildlife
Refuge and private wetlands in South Dakota. U.S. Fish and Wildlife Service Contaminant
Report Number: R6/814P/93. 36 pp.
Ruelle, R. and C. Henry. 1994. Life history observations and contaminant evaluation of
pallid sturgeon, final report. U.S. Fish and Wildlife Service. 33 pp.
Ruelle, R.R. and C.J. Henry. 1995. Survey of organophosphate insecticides in wetlands
near sunflower fields in South Dakota, final report. 15 pp.
Ruelle, R. and K.D. Keenlyne. 1992. Contaminants in Missouri River sturgeon. U.S. Fish
and Wildlife Service. SD-DEC-93-01. 12 pp.
Ruelle, R, R. Koth, and C. Stone. 1993. Contaminants, fish, and hydrology of the
Missouri River and western tributaries, South Dakota. U.S. Fish and Wildlife Service. Pp.
449-490. In: Hesse, L.W., C. Stalnaker, N. Benson, and J. Zuboy (eds). River
Ecosystem. Biological Report 19, National Biological Survey, Washington, D.C. October
Schwarz MS, and Gober J. 2011. Review and Management Recommendations for study titled “Retention time of chlorophacinone in the tissues of black-tailed prairie dogs exposed to chlorophacinone bait.” US Fish and Wildlife Service Contaminants Report 6F56. Pierre, SD. 16 pp with attached Witmer report.[PDF file size 7 MB]
Sowards, C., S. Maxwell, and R. Ruelle. 1991. A compendium of environmental
contaminants in South Dakota fish, wildlife, and habitats. U.S. Fish and Wildlife Service
Contaminant Report Number: R6/812P/91. 93 pp.