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Lithognathus mormyrus (Linnaeus, 1758)

Sand steenbras
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Lithognathus mormyrus   AquaMaps   Data sources: GBIF OBIS
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Image of Lithognathus mormyrus (Sand steenbras)
Lithognathus mormyrus
Picture by Patzner, R.


Italy country information

Common names: Aiula, Ajula, Aiole
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/it.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Bauchot, M.-L., 1987
National Database: ICTIMED

Common names from other countries

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Eupercaria/misc (Various families in series Eupercaria) > Sparidae (Porgies)
Etymology: Lithognathus: Greek, lithos = stone + Greek, gnathos = jaw (Ref. 45335).
  More on author: Linnaeus.

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

marien; brak water demersaal; diepte 0 - 150 m (Ref. 3688), usually 10 - 20 m (Ref. 37413).   Subtropical; 48°N - 35°S, 25°W - 36°E

Verspreiding Landen | FAO regio's | Ecosystemen | Voorkomen | Point map | Introducties | Faunafri

Eastern Atlantic: Bay of Biscay, Strait of Gibraltar and Mediterranean; southward to Cape of Good Hope, South Africa; around the Canary and Cape Verde Islands (Ref. 3688); and Madeira Is (Ref. 74541). Western Indian Ocean: southern Mozambique (Ref. 3688). Not found in tropical east Africa (Ref. 3198), Red Sea (Ref. 84159) and Black Sea (Ref. 4781, 112870).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 17.4, range 20 - ? cm
Max length : 55.0 cm TL mannelijk / geslacht onbekend; (Ref. 3397); common length : 30.0 cm TL mannelijk / geslacht onbekend; (Ref. 3688); max. gerapporteerde leeftijd: 12 Jaren (Ref. 13716)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 11; Dorsale zachte stralen (totaal) : 12 - 13; Anale stekels: 3; Anale zachte stralen: 10 - 11.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on the shelf, over sandy and muddy bottoms as well as seagrass-beds and estuaries. Gregarious, sometimes forming sizeable schools. Feeds on worms, mollusks and small crustaceans. Protandric hermaphrodite (Ref. 3688). Flesh excellent (Ref. 3198); sold fresh and dried.

Levenscyclus en paargedrag Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven

A monandric species (Ref. 55367). In the northern Adriatic, overall male to female ratio was 1:1.62. Sex inversion occurred mainly between 24.1 and 35.2 cm TL and 3.5 years of age (Ref. 55367). Conflicting descriptions of the reproductive style of this species have been reported, including possible gonochorism (Ref. 103751). Also Ref. 28504.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Bauchot, M.-L. and J.-C. Hureau, 1990. Sparidae. p. 790-812. 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. 3688)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Niet bedreigd (LC) ; Date assessed: 16 August 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless




Gebruik door de mens

Visserij: van minder commercieel belang; sportvis: ja
FAO(visserij: productie; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

Meer informatie

Trophic ecology
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Diet compositions
Food consumptions
Food rations
Predatoren
Ecology
Ecologie
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Life cycle
Voortplanting
Maturities
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Estimates based on models

Preferred temperature (Ref. 115969): 17.1 - 27.5, mean 24.4 (based on 224 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.01073 - 0.01347), b=3.02 (2.99 - 3.05), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.5   ±0.39 se; based on food items.
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (K=0.24; tm=2).
Prior r = 0.54, 95% CL = 0.36 - 0.81, Based on 1 full stock assessment.
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (40 of 100).
Climate Vulnerability (Ref. 125649):  Low to moderate vulnerability (31 of 100).
Prijsklasse (Ref. 80766):   Medium.