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Uranoscopus scaber Linnaeus, 1758

Stargazer
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Native range | All suitable habitat | Point map | Year 2050
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Uranoscopus scaber   AquaMaps   Data sources: GBIF OBIS
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Image of Uranoscopus scaber (Stargazer)
Uranoscopus scaber
Picture by Patzner, R.

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

Teleostei (teleosts) > Perciformes/Uranoscopoidei (Sand dwellers) > Uranoscopidae (Stargazers)
Etymology: Uranoscopus: Greek, ouranos = sky + Greek skopein = to watch (Ref. 45335).
More on author: Linnaeus.

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

Marine; demersal; depth range 15 - 400 m (Ref. 6763). Subtropical; 62°N - 16°N, 19°W - 37°E

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

Eastern Atlantic and Mediterranean Sea.

Length at first maturity / Size / Weight / Age

Maturity: Lm 15.8, range 17 - 18 cm
Max length : 56.4 cm TL male/unsexed; (Ref. 86700); common length : 22.0 cm TL male/unsexed; (Ref. 3397); max. published weight: 940.00 g (Ref. 40637)

Biology     Glossary (e.g. epibenthic)

The shoulder spines can inflict, painful stings. Usually found buried in the sand or mud. Equipped with an acoustic apparatus that generates both acoustic and electric pulses. Electric discharge activity shows two temporal patterns: 1) reflexive discharges of short duration (milliseconds), elicited by mechanical stimulation, and 2) those of much longer duration (several seconds) observed only during the summer spawning period (Ref. 10011). Low-frequency spontaneous discharge activity (5-10 Hz), with a sexual dimorphism in discharge amplitude is also said to exist. This species suggestively represents a transitional form in the evolution of electric organs in fishes (Ref. 10577). Oviparous, eggs, larvae and juveniles are pelagic (Ref. 6763). Utilized fresh (Ref. 9987).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Roux, C., 1990. Uranoscopidae. p. 897-898. 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. 7366)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 14 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 4690)





Human uses

Fisheries: minor commercial; gamefish: yes
FAO - Fisheries: landings; Publication: search | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 123201): 11.2 - 17, mean 14.2 °C (based on 228 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00979 - 0.01477), b=3.04 (2.98 - 3.10), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.70 se; based on food items.
Generation time: 7.4 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=2).
Fishing Vulnerability (Ref. 59153):  High vulnerability (56 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 69.2 [40.3, 127.0] mg/100g; Iron = 1.04 [0.66, 1.74] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.445 [0.303, 0.666] g/100g; Selenium = 30.9 [15.8, 60.3] μg/100g; VitaminA = 26.2 [9.2, 80.2] μg/100g; Zinc = 0.603 [0.430, 0.869] mg/100g (wet weight); based on nutrient studies.