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Percopsiformes (Trout-perches, pirate perches and cavefishes) >
Amblyopsidae (Cavefishes)
Etymology: Amblyopsis: Greek, amblys = darkness + Greek, ops = shape (Ref. 45335).
More on author: DeKay.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce démersal; non migrateur (Ref. 126106). Temperate; 39°N - 37°N
North America: Indiana and Kentucky, U.S.A.
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 11.0 cm TL mâle / non sexé; (Ref. 5723); common length : 6.5 cm TL mâle / non sexé; (Ref. 12193)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 9 - 11; Épines anales: 0; Rayons mous anaux: 8 - 11; Vertèbres: 29 - 30. Pink-white. No eyes (vestigial eye tissues under skin). Extremely small pelvic fins (rarely absent). Large, broad head. Caudal fin with 4-6 rows of papillae; 11-13 branched caudal rays.
Body shape (shape guide): elongated.
Blind and depigmented. Despite the lack of eyes it does respond to light and moves away from it (scotophilia). Adults inhabit subterranean water or caves which have consolidated mud-rock substrates in shoals and silt-sand substrates in pools but is more often found in caves with uniform silt-sand substrates (Ref. 34868). This species has low reproduction rate and broods eggs in gill cavity for up to 4-5 months (Ref. 557; 34868; 27795). Can live for 2 years without food because of low metabolic rate (Ref. 5326). Top predator.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Female incubates eggs in gill cavities (Ref. 7471).
Romero, A. and L. Bennis, 1998. Threatened fishes of the world: Amblyopsis spelaea DeKay, 1842 (Amblyopsidae). Environ. Biol. Fishes 51(4):420. (Ref. 27795)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.6331 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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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). |
Niveau trophique (Réf. 69278) |
3.4 ±0.39 se; based on food items. |
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Generation time |
5.5 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Résilience (Réf. 120179) |
Faible, temps minimum de doublement de population : 4,5 à 14 années (K=0.20; low reproductive rate (Refs. 34868; 27795).). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate vulnerability (37 of 100). 🛈 |