Klassifizierung / Names
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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335); duranii: Named for Duranius (Durranus, Dordonia, etc.), the Latin name of River Dordogne which is the type locality of the species.
More on authors: Freyhof, Kottelat & Nolte.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
; süßwasser benthopelagisch. Temperate
Europe: Upper Dordogne and upper Loire drainages in France. Populations from upper Lot are possibly conspecific.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 10.0 cm SL Männchen/unbestimmt; (Ref. 89113)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Afterflossenweichstrahlen: 12 - 13. Differs from all species of Cottus in Europe by the dorsal fins usually separate in both sexes. Other characters useful to distinguish the species from other Cottus in Atlantic drainages include: relatively elongated body; first dorsal fin low, slightly rounded or regularly slanted; caudal peduncle stout (length 14-20% SL; depth 8-9% SL and 1.5-2.4 times in its length); no prickling in adults; eye diameter 19-26% of HL; interorbital distance 0.9-1.2 times in eye diameter; last anal-fin ray connected to body by a membrane at most along 1/4 of its length; last dorsal-fin ray connected to body by a membrane along 1/2-4/5 of its length; no membrane between pelvic fin and body; pelvic-fin ray 1 straight and slender; lateral line complete (Ref. 55856).
Inhabits streams with clear, cool, moderate to swift water and stone substrate (Ref. 59043).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Keith, P., H. Persat, E. Feunteun and J. Allardi, 2011. Les poissons d'eau douce de France. Biotope, Mèze; Muséum national d'Histoire naturelle, Paris (collection Inventaires et biodiversité), 552 p. (Ref. 89113)
IUCN Rote Liste Status (Ref. 130435: Version 2024-2)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
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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=0.00955 (0.00344 - 0.02648), b=3.09 (2.85 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Cottus duranii (Chabot d\](/images/thumbnails/gif/tn_COTTIDT0.gif "Image of Cottus duranii (Chabot d\")
