Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Centrarchiformes (Basses) >
Centrarchidae (Sunfishes)
Etymology: Micropterus: Greek, mikros = small + Greek,pteron = wing, fin (Ref. 45335); cahabae: Named for the Cahaba River, to which it is endemic.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Subtropical
North America: endemic to the Cahaba River system in the Piedmont region of central Alabama, USA.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 36.0 cm SL male/unsexed; (Ref. 93229); max. published weight: 800.00 g (Ref. 93229)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 10; Dorsal soft rays (total): 11 - 12; Anal spines: 3. Distinguished from all congeners, except Micropterus tallapoosae, by the absence of red or orange pigmentation on fin rays (fin rays green or yellow-green); from M. tallapoosae and M. chattahoochae by having 68-72 lateral-line scales (vs. 61-67 ) and 30-32 scales around caudle peduncle ( vs. 26-29); from M. chattahoochae by its narrower head (postfrontal width 11.2% SL vs. 11.8%); and from M. coosae by its head width 11.2% (vs. 11.0%); from M. chattahoochae and M. cf. coosae (Savannah River) by a smaller tongue tooth patch (less than 1.0 mm in 51.7%, absent in 34.5% of specimens vs. in 66.7% or more and absent in 9.0% or less) and from M. warriorensis by more often having a tooth patch (absent in 34.5% vs. 82.9%). It further differs from all species by a unique pigmentation pattern along the midline of the body, having 6-12 blotches with the anterior 6-9 shorter, wider vertical bars followed posteriorly by rounded spots (Ref. 93229).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Baker, W.H., R.E. Blanton and C.E. Johnston, 2013. Diversity within the redeye bass, Micropterus coosae (Perciformes: Centrarchidae) species group, with descriptions of four new species. Zootaxa 3635(4):379-401. (Ref. 93229)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00590 - 0.02567), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±0.5 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): Low to moderate vulnerability (34 of 100).
