Classification / Names
Noms communs | Synonymes | Catalog of Fishes(Genre, Espèce) | ITIS | CoL | WoRMS | Cloffa
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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); specus: The specific epithet 'specus' means a cave or cavern, in reference to the primary habitat in caves..
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce benthopélagique. Temperate
North America: Bois Brule drainage in eastern Missouri, USA.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 10.3 cm SL mâle / non sexé; (Ref. 92978)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 7 - 8; Rayons mous dorsaux (Total) : 16 - 18; Rayons mous anaux: 12 - 14. Distinguished from all congeners, except Cottus carolinae, Cottus chattahoochee, Cottus confusus, Cottus hubbsi, and some populations of Cottus beldingii by the complete lateral line ending near the base of the caudal fin and dorsal fins not usually connected. Cottus specus only occupies geographically adjacent to C. carolinae and can be distinguished by a reduction in eye size: 1-5% SL in 98% of specimens (1-4% in 85% of specimens) versus eye size 5-9% of SL in 100% of specimens. Cottus specus possesses a significant increase in cephalic lateralis pore size, 92% above 500 mm (vs. 100% in C. carolinae between 200-500 mm) (Ref. 92978).
Occurs in cave streams as well as their resurgences, primarily over gravel, cobble, or bedrock bottom (Ref. 92978).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Builds nests under cobble or pebble substrate. Lays adhesive eggs, in a clump, that are attached to the underside of a rock (Ref. 92978).
Adams, G.L., B.M. Burr, J.L. Day and D.E. Starkey, 2013. Cottus specus, a new troglomorphic species of sculpin (Cottidae) from southeastern Missouri. Zootaxa 3609(5):484-494. (Ref. 92978)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00389 - 0.01621), b=3.12 (2.95 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
