The Ashy Darter, Etheostoma cinereum (Percidae: subgenus Allohistium), is restricted to flowing pools of relatively silt free, medium-sized rivers in the Cumberland, Duck and Tennessee River drainages in the southeastern United States. Degradation of these habitats within these drainages has fragmented the range of E. cinereum into several disjunct populations and eliminated it from many historical localities. Phylogenetic analysis of cytochrome b sequence from individuals (n = 14) representing each of the extant populations of E. cinereum indicated genetic differentiation among populations inhabiting the Cumberland, Duck, and upper Tennessee River drainages. These analyses are concordant with previously noted patterns of morphological variation and minimally support three different management units (MU) currently recognized as E. cinereum. Efforts to conserve these distinct MUs should be considered in management attempts.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 2004 • No. 3