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Perciformes/Cottoidei (Sculpins) >
Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).
Eponymy: Professor Georges Jean-Jacques Petit (1892–1973) was a French marine biologist at the Muséum National d’Histoire Naturelle. [...] (Ref. 128868), visit book page.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Temperate
Europe: sources of stream Lez in France.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 6.4 cm SL hane/ej könsbestämd; (Ref. 89113); common length : 5.6 cm TL hane/ej könsbestämd; (Ref. 30578); publicerad maxvikt: 4.00 g (Ref. 89113)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 5 - 7; Mjukstrålar i ryggfenan (totalt) : 15 - 16; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 11 - 13; Ryggkotor: 30. Differs from other species of Cottusin France by the combination of the following characters: in juveniles and adults, prickling on body extending backwards to caudal peduncle; no distinct transverse bands on pelvic; last dorsal-fin ray reaching rudimentary caudal-fin rays; eye diameter 27-31%; interorbital distance 1.9-2.4 times in eye diameter; last anal-fin ray connected to body by a membrane along about 2/3 of its length; depth of caudal peduncle 24-28% HL (Ref. 55856). Caudal fin with 13 to 16 rays (Ref. 40476).
Found in cold, karstic spring (Ref. 59043). Laboratory experiments, using natural photoperiod and constant temperature of 15-16°C corresponding with those of its habitat, showed that a female could lay eggs several times with less than one month interval. Between 20 to 70 eggs of relatively large size (2.1 mm) are laid (Ref. 30578).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: saknar intresse
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00345 - 0.02005), b=3.16 (2.98 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Sårbarhet i fisket (Ref.
59153): Low vulnerability (10 of 100).
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