Journal Article
Population genetics of grotto sculpin (Cottus specus), a new cave-adapted fish species
Day, J., Starkey, D.E., Adams, G., Brummett, S. and Keeney, D.
Record Number:
3539
Year:
2014
Journal:
Environmental Biology of Fishes
Pages:
1305-1315
Volume:
97
Label:
PDF
Abstract:
Abstract The grotto sculpin (Cottus specus) is a
troglomorphic fish endemic to cave systems in Perry
County, Missouri. These fish are state-threatened and
were recently listed as federally endangered under the
Endangered Species Act (ESA). Due to the unstable
nature of the cave environment, grotto sculpins are
highly susceptible to pollution via agricultural and waste
runoff. Here we provide a summary of population genetic
diversity within the range of the grotto sculpin.
Samples from twenty-one cave, surface, and resurgence
sites within and surrounding the Bois Brule drainage in
Perry County, southeast Missouri, USA were collected
and sequence data from the mitochondrial control were
analyzed using analysis of molecular variance, maximum
likelihood, parsimony, and Bayesian techniques.
We found a substantial degree of divergence from surface
populations of Midlands and Black River banded
sculpin races (7.7–8.0 %). Within the Bois Brule drainage,
two distinct lineages of grotto sculpin were identified
which correspond with northern and southern cave
system boundaries and may represent independent cave
invasions.
Keywords Sculpin . Fish .Conservationbiology.Cave .
Population genetics
Times Cited:
1
Relevent Species: