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North America: disjunct range east and west of Former Mississippi Embayment. Cumberland and Tennessee River drainages; upper Savannah and Santee drainages (Atlantic Slope); and upper New River drainage in West Virginia and Virginia; St. Francis and White River drainages in Missouri and Arkansas, USA.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref.
86798
); common length : 6.9 cm TL male/unsexed; (Ref.
12193
); max. reported age: 4 years (Ref.
12193
)
Inhabits rocky runs, less often in pools and riffles, of clear headwaters, creeks, and small rivers (Ref.
5723
,
86798
). Feeds on terrestrial insects and drifting aquatic larvae (Ref.
10294
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Page, L.M. and B.M. Burr
, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref.
86798
)
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00232 - 0.01084), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (tmax=4).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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