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Rebecca Blanton Johansen

Professor, Curator of Ichthyology

Graduate Program CoordinatorRebecca Johansen

Sundquist Science Complex, Room D116
P.O. Box 4718
Clarksville, TN 37044
(931) 221-7774
email: johansenr@apsu.edu
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Johansen Lab webpage: 


Ph.D. Tulane University (Ecology and Evolutionary Biology), 2007
M.S. Eastern Kentucky University (Biology), 2001
B.S. Eastern Kentucky University (Biology), 1998


Ichthyology, Zoological Diversity, Contemporary Issues in Biology

Research Interests

Fish Systematics, Phylogeography, Population Genetics

Selected Publications 

(an * denotes a student co-author)

Blanton, R.E., M.F. Cashner, M.R. Thomas, S.L. Brandt, M.A. Floyd. 2019. Increased habitat fragmentation leads to isolation among and low genetic diversity within populations of the imperiled Kentucky Arrow Darter (Etheostoma sagitta spilotum). Conservation Genetics https://doi.org/10.1007/s10592-019-01188-y 

Bloom*, E., B. McCall*, G.A. Schuster & R.E. Blanton. 2019. Systematics and description of a new species of Faxonius Ortmann, 1905 (Decapoda: Astacidae: Cambaridae) from the Red River system of Kentucky and Tennessee, USA. Journal of Crustacean Biology (2019): 1-14. 

Wagner*, M.D., & R.E. Blanton. 2017. Do phylogeographic breaks correspond to river drainage boundaries in the Redband Darter, Etheostoma luteovinctum? Copeia 105(4): 698-713.

Jarrett, A., W. Stiles, A. Janosik, R.E. Blanton, and C. Johnston. 2017. Evidence of stream capture from the Tallapoosa River drainage by a Chattahoochee River tributary based on fish distributions. Southeastern Naturalist 16(1): 117-126.

Wagner*, M.D., M.S. Hoger* & R.E. Blanton. 2014. Conservation status of the Redband Darter, Etheostoma luteovinctum, with notes on a burying behavior. Southeastern Naturalist 13(3): 530-546.

Blanton, R.E., L.D. Estes, SW. Hamilton & A.N. Barrass (Editors). 2013. Proceedings of the 14th Symposium on the Natural History of the Lower Tennessee and Cumberland River Valleys. The Center of Excellence for Field Biology, Austin Peay State University, Clarksville, TN.

Baker, W. H., R. E. Blanton, & C. E. Johnston.  2013. Diversity within the Redeye Bass complex (Micropterus coosae), with descriptions of four new species.  Zootaxa, 3635 (4): 379-401.

Blanton, R.E., L.M. Page, & S.A. Hilber*.  2013. Timing of clade divergence and discordant estimates of genetic and morphological diversity in the Slender Madtom, Noturus exilis (Ictaluridae).  Molecular Phylogenetics and Evolution 66: 679-693.

Blanton, R.E., L.M. Page, & B.M. Ennis*.  2011. Phylogenetic relationships of Opsopoeodus emiliae (Cyprinidae), with comment on the taxonomic implications of discordance among datasets. Copeia (1): 82-92.

Bart, H.L., Jr., M.D. Clements, R.E. Blanton, K.R. Piller, & D.L. Hurley. 2010. Discordant morphological and molecular evolution in buffalofishes Molecular Phylogenetics and Evolution 56: 808-820.

Blanton, R.E. & G.A. Schuster.  2008. Taxonomic status of Etheostoma brevispinum (Coker), the Carolina Fantail Darter. Copeia 4:844-857.

Blanton, R.E. & R.E. Jenkins. 2008. Three new darter species of the federally endangered Etheostoma percnurum species complex (Percidae, subgenus Catonotus) from the Tennessee and Cumberland river drainages. Zootaxa 1963:1-24.