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Torpedo marmorata Risso, 1810

Marbled electric ray
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Native range | All suitable habitat | Point map | Year 2050
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Torpedo marmorata   AquaMaps   Data sources: GBIF OBIS
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Image of Torpedo marmorata (Marbled electric ray)
Torpedo marmorata
Picture by Patzner, R.


Italy country information

Common names: Battinetta, Sa Nacida, Sgranfo
Occurrence: native
Salinity: marine
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: Muus, B. and P. Dahlström, 1978
National Database: ICTIMED

Common names from other countries

Classification / Names आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa

इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Torpediniformes (Electric rays) > Torpedinidae (Electric rays)
Etymology: Torpedo: Latin, torpere = be sluggish (Ref. 45335).
  More on author: Risso.

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

समुद्री; खारा प्रवाल-भित्ति संयुक्त; गहराई सीमा 2 - 370 m (Ref. 4430).   Subtropical; ? - 20°C (Ref. 10011); 60°N - 34°S, 19°W - 36°E (Ref. 114953)

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Eastern Atlantic: northern UK (less common in southern North Sea and Kattegat) to Cape of Good Hope, South Africa. Also in the Mediterranean Sea.

Length at first maturity / आकार / वज़न / Age

Maturity: Lm 44.0, range 39 - 49 cm
Max length : 100.0 cm TL पुल्लिंग / अलिंग; (Ref. 27000); common length : 60.0 cm TL पुल्लिंग / अलिंग; (Ref. 114953); अधिकतम प्रकाशित वज़न: 3.0 kg (Ref. 35388)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण) : 0; गुदा कांटा: 0; जानवरों की रीड़ का जोड़: 104 - 108. Disc-width around the same as its length, length and width 1,50 to 1,70 times in total length; dorsal fins more or less rounded, its base 1,50 times in its height (Ref. 39215).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Occurs in seagrass areas, rocky reefs, and adjacent soft bottoms (Ref. 12951). Avoids temperatures above 20°C (Ref. 10011). Nocturnal, usually burying itself during the day with only the eyes and spiracle jutting out (Ref. 12382). Feeds on small benthic fishes Trachurus, Mugil, Mullus, Dicentrarchus, Spondyliosoma, Boops, Labrus, Dascyllus, Pomacentrus) and crustaceans (Ref. 10011). Females outlive males; viviparous, neonates measuring 10-14 cm at birth (Ref. 10426). Produces 2-32 pups in a litter after a 10-month gestation (Ref. 12951, Ref. 114953). Males reaches maturity at ca. 30 cm TL, females at ca. 40 cm TL; born at 10-14 cm TL (Ref. 114953). Electrocytes start developing when the embryo weighs about 1 g; electric organs functional before birth and newborns can use their electric organ discharge (EOD) in capturing prey (Ref. 10428). Can produce electric discharges of up to 200 volts; EOD frequency up to 600 Hz. Jumps on fast-moving prey, paralyzing it with its EOD (Ref. 27000).

Life cycle and mating behavior Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Main reference Upload your references | संदर्भ | संयोजक : Carvalho, Marcelo | सहयोगीयो

Stehmann, M. and D.L. Bürkel, 1984. Torpedinidae. p. 159-162. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the north-eastern Atlantic and Mediterranean. UNESCO, Paris. Vol. 1. (Ref. 2803)

IUCN Red List Status (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other (Ref. 4690)




Human uses

मात्स्यिकी: कोई रुचि बग़ैर; जलजीवालय: सार्वजनिक लजीवालय
FAO(Publication : search) | FishSource | Sea Around Us

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Trophic ecology
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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (Ref. 115969): 10.1 - 19.2, mean 14.1 (based on 392 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.01478 - 0.02241), b=2.93 (2.87 - 2.99), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.0 se; based on diet studies.
लौटाव (Ref. 120179):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Fec=5-32).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).