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Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Cynoglossidae (Tonguefishes) > Symphurinae
Etymology: Symphurus: Greek, syn, symphysis = grown together + Greek, oura = tail (Ref. 45335).
Eponymy: John Roxborough Norman (1898–1944) was an English ichthyologist who started his working life as a bank clerk. [...] (Ref. 128868), visit book page.
More on author: Chabanaud.

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

Marine; demersal; depth range 50 - 100 m (Ref. 27121). Tropical

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Eastern Atlantic: Gulf of Guinea (Ref. 2683) to Angola. Reported from northern Namibia (Ref. 27121).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 70.0 cm TL male/unsexed; (Ref. 36731)

Inhabits mud and sand bottoms (Ref. 2683).

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

Main reference Upload your references | References | Coordinator | Collaborators

Desoutter, M., 1990. Cynoglossidae. p. 1050-1054. 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. 6511)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 21 May 2012

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 14.2 - 19.8, mean 17.8 °C (based on 17 cells).

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

Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (48 of 100).

Price category (Ref. 80766): Very high.

Symphurus normani Chabanaud, 1950