Actinopteri (ray-finned fishes) > Perciformes/Scorpaenoidei
(Scorpionfishes) > Triglidae
(Searobins) > Triglinae
Etymology: Chelidonichthys: Greek, chelidon, -onos = swift, as black as a swift + Greek, ichthys = fish (Ref. 45335).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 20 - 318 m (Ref. 56504). Subtropical; 8°C - 24°C (Ref. 4944); 66°N - 9°N, 18°W - 42°E
Eastern Atlantic: Norway to Cape Blanc (along the African coast); not recorded at Madeira and the Azores. Also in the Mediterranean and Black seas.
Length at first maturity / Size / Weight / Age
Maturity: Lm 24.7  range ? - ? cm
Max length : 75.1 cm TL male/unsexed; (Ref. 59122); common length : 30.0 cm TL male/unsexed; (Ref. 3397); max. published weight: 6.0 kg (Ref. 3397); max. reported age: 15 years (Ref. 26811)
Longest ray in the pectoral fin reaching the front part of the anal fin. Lateral line scales smooth. Reddish color (Ref. 35388).
Occurs at temperatures ranging from 8.0-24.0 °C (Ref. 4944). Inhabits sand, muddy sand or gravel bottoms. Up to depth of 318 m in the eastern Ionian Sea (Ref. 56504). Feeds on fish, crustaceans and mollusks. Has three isolated rays on the pectoral fin which function as legs on which the fish rests and also help in locating food on the soft bottom (Ref. 9988). Marketed fresh or frozen; eaten pan-fried, broiled, microwaved or baked (Ref. 9988).
Distinct pairing during breeding (Ref. 205).
Richards, W.J. and V.P. Saksena, 1990. Triglidae. p. 680-684. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 3687)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: commercial; gamefish: yes; aquarium: public aquariums
Estimates based on models
Preferred temperature (Ref. 115969
): 7 - 16, mean 9.8 °C (based on 453 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00651 - 0.00926), b=3.03 (2.98 - 3.08), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.0 se; based on diet studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (K=0.15-1.6(?); tmax=14; tm=3).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (54 of 100) .
Climate Vulnerability (Ref. 125649
): Moderate vulnerability (37 of 100) .
Nutrients (Ref. 124155
): Calcium = 84.7 [40.9, 192.6] mg/100g ; Iron = 0.901 [0.530, 1.658] mg/100g ; Protein = 19 [18, 20] % ; Omega3 = 0.338 [0.162, 0.947] g/100g ; Selenium = 43.4 [21.7, 106.6] μg/100g ; VitaminA = 12.1 [4.6, 31.1] μg/100g ; Zinc = 0.714 [0.492, 1.082] mg/100g (wet weight); based on nutrient studies.