SPECIES CODE: E05H V01
Listed Endangered in the entire range with Critical Habitat
on August 5, 1985 (50 FR
31597 31604). Recovery Plan completed on June 20, 1986.
Note: All descriptions can be found in the Recovery Plan (1986), the
Federal Register (50 FR 31597 31604), and the USFWS Species Accounts [online].
This species is a member of the Percidae family. The Conasauga logperch is a larger darter,
sometimes exceeds 6 inches in length.
This species feeds on aquatic invertebrates found under stones (Starnes
and Etnier 1980).
studies regarding life history have been conducted. Available information indicates that spawning
occurs in the spring, in fast riffles over gravel substrate. The fish probably reaches sexual maturity
after 1 year and has a maximum life span of at least 4 years.
RANGE AND POPULATION LEVEL:
species is currently known only from the upper Conasauga
River basin in Georgia
and Tennessee. This species is apparently restricted to
about 11 miles of the upper Conasauga
River in Tennessee
and Georgia. Specifically, it has been observed in the Conasauga
River from approximately ¼ mile
above the junction of Minnewauga Creek, Polk County,
Tennessee, downstream through Bradley
County, Tennessee, to the Georgia State Highway 2 Bridge, Murray
species occurs in flowing pool areas and riffles over clean substrate of
rubble, sand, and gravel (Starnes and Etnier, 1980). The Conasauga logperch requires unpolluted,
clean water streams.
habitat designated for this species within the Conasauga
River (Polk and Bradley
and Murray and Whitfield
contains high quality water, pool areas and deeper chutes with gravel and small
rubble for spawning.
Due to the species’ limited distribution, any
factor that degrades habitat or water quality in these short river reaches
could threaten the fish’s survival. The
major threat to the species has been siltation resulting from land clearing
from agriculture or other land uses.
Another factor limiting the species’ distribution is thought to be the
presence of “…the Mobile logperch, occupying the entire
upper Coosa system…resulting in the surviving species
residing in a very small section of the Conasauga
River (Thompson 1985)” (USFWS
1986). Just upstream of Murray County
Road 173 Bridge, Murray County, Georgia,
an island was removed in 1982 at a site that was inhabited by Conasauga
logperch. Six to nine moths after the
area was modified, the Conasauga logperch was not seen at the site.
The continued existence of the species is
jeopardized if water development projects now being considered for the Canasuga River basin are implemented without adequately
considering the requirements of these species.
Fish species common to reservoirs, including carp, generally respond to
reservoir construction by dramatically increasing their population levels,
Periodic upstream movement of these fishes could be expected to reduce the
Consasauga logperch’s chances of survival through competition, predation, and
changes in the habitat caused by some of the fishes’ feeding behavior (e.g.,
carp stirring up the substrate during feeding).
Other threats would include siltation and habitat modification from the
construction of the projects, and major land use changes, chemical spills, and
significant increases in agricultural and urban runoff.
primary factor in conserving the Conasauga logperch will be to protect its
present habitat in the Conasauga River
and ensure that neither habitat nor water quality is degraded through
construction or other activities. Studies on life history and habitat
requirements should be conducted to provide complete information on management
Starnes, W.C., and D.A. Etnier. 1980. Fishes. Pages B1-B134 In D.C. Eagar
and R.M. Hatcher (eds.). Tennessee’s
Rare Wildlife Volume 1: The Vertebrates. Tennessee
Thompson, B.A. 1985. Percina jenkinsi, a new
species of logperch (Pisces:Percidae) from the Conasauga River, Tennessee and
Georgia. Pap. Mus. Zool. Louisiana State Univ. No. 61. 23pp.
Fish and Wildlife Service. 1986. Conasauga Logperch and Amber Darter Recovery
Plan. U.S. Fish
and Wildlife Service, Atlanta, Georgia.
Fish and Wildlife Service. 1985. Determination of Endangered Status and of
Critical Habitat for the Amber Darter and the Conasauga Logperch. Federal
Fish and Wildlife Service. Division of Endangered Species, Conasauga logperch (Percina
jenkinsi) Species Accounts [online]. Available:
Aug. 13, 2002.