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North America: Mississippi River tributaries on Former Mississippi Embayment from southern Kentucky and southern Arkansas south to Louisiana in the USA; Gulf Slope drainages from Choctawhatchee River in Alabama and Florida to Galveston Bay in Texas in the USA.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 51.0 cm TL male/unsexed; (Ref.
5723
); common length : 25.5 cm TL male/unsexed; (Ref.
12193
)
Inhabits sandy and rocky pools, runs and riffles of small to medium rivers. Also found in impoundments (Ref.
5723
,
10294
). Feeds on detritus, diatoms, and a wide variety of small invertebrates such as microcrustacea, rotifers, caddisfly larvae, and phantom midge larvae (Ref.
10294
).
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=0.01072 (0.00549 - 0.02090), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Moderate vulnerability (40 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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