Teleostei (teleosts) >
Pleuronectiformes (Flatfishes) >
Bothidae (Lefteye flounders)
Etymology: Arnoglossus: Greek, aros, -oy = lamb + Greek, glossa = tongue (Ref. 45335).
Eponymy: These genera and species are named after ‘Thor’, the first Danish research vessel specifically equipped for oceanic scientific research (named after the Norse god of thunder). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 15 - 300 m (Ref. 5979). Subtropical; 43°N - 6°N, 26°W - 42°E
Eastern Atlantic: Ireland (Ref. 4704) to Sierra Leone and Cape Verde. Also known from the western Mediterranean and Black Sea.
Length at first maturity / Size / Weight / Age
Maturity: Lm 8.8, range 12 - ? cm
Max length : 18.0 cm SL male/unsexed; (Ref. 4704); common length : 12.0 cm TL male/unsexed; (Ref. 3397); max. reported age: 10 years (Ref. 32766)
Dorsal spines (total): 0; Dorsal soft rays (total): 81 - 91; Anal soft rays: 61 - 69. Second ray of dorsal fin very long, with a conspicuous dark, fringed broad membrane. First 3 or 4 dorsal fin rays generally blackish in adults but only the elongate second ray is dark in immature fishes.
Found on the upper 100 m of the continental shelf. Feeds on small fishes and invertebrates (Ref. 4704). Minimum depth reported taken from Ref. 52678 but has been caught in depths inferior to 10m (Ref. 57407).
Aldebert, Y., M. Desoutter and J.-C. Quéro, 1990. Bothidae. p. 1027-1036. 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. 5979)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Estimates based on models
Preferred temperature (Ref.
123201): 13.7 - 18.6, mean 15.4 °C (based on 138 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00550 - 0.00871), b=3.08 (3.02 - 3.14), in cm total length, based on LWR estimates for this species (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.5 se; based on diet studies.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.51-0.58; tm=2; tmax=10).
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
Nutrients (Ref.
124155): Calcium = 140 [67, 304] mg/100g; Iron = 1.25 [0.57, 2.22] mg/100g; Protein = 18.3 [16.9, 19.8] %; Omega3 = 0.327 [0.141, 0.664] g/100g; Selenium = 29.1 [14.9, 58.3] μg/100g; VitaminA = 17.5 [5.7, 51.3] μg/100g; Zinc = 0.931 [0.634, 1.335] mg/100g (wet weight);
![Image of Arnoglossus thori (Thor\](/images/thumbnails/jpg/tn_Artho_u0.jpg "Image of Arnoglossus thori (Thor\")
