France country information

Common names: Chabot du Lez, Lez sculpin
Occurrence: endemic
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Billard, R., 1997
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Occurs in a section 3 km upstream of Lez, a small river in the south of France in the area of Montpellier which is fed by sources of karstic origin. Because of its limited distribution, making C. petiti one of the rarest spcies in France and even in Europe, and the risk of competition with C. gobio, C. petiti is regarded as an endangered species (Ref. 30578). Type locality: sources of river Lez. Also Ref. 55856.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Keith, P. and J. Allardi (coords.), 2001
National Database:

Common names from other countries

Lez sculpin, 佩氏杜父鱼, 佩氏杜父魚, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Cottoidei (Sculpins) > Cottidae (Sculpins)
Etymology: Cottus: Greek, kottos = a fish (Ref. 45335).

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

Freshwater; demersal. Temperate

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

Europe: sources of stream Lez in France.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.4 cm SL male/unsexed; (Ref. 89113); common length : 5.6 cm TL male/unsexed; (Ref. 30578); max. published weight: 4.00 g (Ref. 89113)

Short description Morphology | Morphometrics

Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 15-16; Anal spines: 0; Anal soft rays: 11 - 13; Vertebrae: 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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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 Red List Status (Ref. 130435)

Vulnerable (VU) (D2); Date assessed: 31 January 2006

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries:

FAO(Publication : search) | FishSource |

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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

Price category (Ref. 80766): Low.

Cottus petiti Băcescu & Băcescu-Meşter, 1964