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North America: Roanoke, Neuse, and Tar River drainages in Virginia and North Carolina in the USA. Also in extreme upper James River drainage in Virginia and New River drainage in West Virginia and Virginia, which are probably recent introductions.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 7.8 cm TL male/unsexed; (Ref.
5723
); common length : 4.3 cm TL male/unsexed; (Ref.
12193
); max. reported age: 3.00 years (Ref.
12193
)
Inhabits fast gravel and rubble riffles (adult), gravel-bottomed pools and runs near riffles (young) of small to medium rivers.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Page, L.M. and B.M. Burr
, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref.
5723
)
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00235 - 0.01227), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (tmax=3).
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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