Black Bass Diversity: Multidisciplinary Science for Conservation

Guadalupe Bass Micropterus treculii (Vaillant & Bocourt, 1874)

Stephen G. Curtis, Joshuah S. Perkin, Preston T. Bean, Mario L. Sullivan, and Timothy H. Bonner

doi: https://doi.org/10.47886/9781934874400.ch6

Guadalupe Bass Micropterus treculii diverged from northeastern ancestral Micropterus (Conner and Suttkus1986) approximately 4.1–5.7 million years ago during the late Miocene or early Pliocene (Near et al. 2003, 2005). The species was originally described by Cope (1880) as the Texas (Johnson Fork of the Llano River) version of Florida Bass M. floridanus, differing slightly in some morphometric and meristic counts from its Florida counterpart. Since that time, Guadalupe Bass have undergone several redescriptions, including Dioplites treculii (Vaillant and Bocourt 1883), M. nuecensis var. treculii (Vaillant and Bocourt 1883), M. salmoides (Jordan and Gilbert 1886, Evermann and Kendall 1894), M. pseudaplites (Hubbs 1927), M. punctulatus punctulatus (Hubbs and Bailey 1940), M. p. treculii (Hubbs and Bailey 1942), M. treculi (Jurgens and Hubbs 1953; Hubbs 1954), and its current nomenclature M. treculii (Nelson et al. 2004). Johnson et al. (2001) determined that the sister taxa of Guadalupe Bass is Spotted Bass M. punctulatus based on mitochondrial DNA analyses. Near et al. (2003, 2005) also used mitochondrial DNA analyses and found historical introgression of Guadalupe Bass with Largemouth Bass M. salmoides.