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Teleostei (teleosts) > Percopsiformes (Trout-perches, pirate perches and cavefishes) > Amblyopsidae (Cavefishes)
Etymology: Amblyopsis: Greek, amblys = darkness + Greek, ops = shape (Ref. 45335).
More on author: Eigenmann.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal; potamodromous (Ref. 51243). Temperate; 38°N - 35°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

North America: Springfield Plateau in southwestern Missouri, northeastern Oklahoma and northwestern Arkansas (Arkansas and upper White River drainages), USA.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.2 cm TL male/unsexed; (Ref. 5723); common length : 4.4 cm TL male/unsexed; (Ref. 12193)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 7 - 8; Anal soft rays: 8. Pink-white. No eyes (vestigial eye tissues under skin). No pelvic fins. Usually 8 anal rays; 9-11 branched caudal rays.

Adults inhabit subterranean waters of quite small cave streams. Preferred habitat in these caves is chert rubble though individuals are also found in areas of silt-sand substrates. Stomachs examined contained copepods which constituted about 70-90% by volume with the balance being primarily small salamanders, crayfish, isopods, amphipods and young of their own species (Ref. 34868). Eggs are carried in gill chambers of females (Ref. 205). Threatened by overfishing (Ref. 10172).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Incubates eggs in gill chamber of females (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

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)

IUCN Red List Status (Ref. 130435)

Near Threatened (NT) ; Date assessed: 26 April 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6338 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.54 se; based on food items.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (K=0.3; Fec=25).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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