Malta country information

Common names: Brown ray, Raja lixxa, Raja petruza
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 3167.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mt.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Lanfranco, G.G., 1996
National Database:

Common names from other countries

Raie miroir, Raya de espejos, Homelyn cuckoo ray, ... more

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

Elasmobranchii (haaien en roggen) (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Raja: Latin, raja, -ae = a sting ray (Raja sp.) (Ref. 45335).
More on author: Linnaeus.

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

marien; brak water demersaal; diepte 17 - 462 m (Ref. 56504), usually 50 - 150 m (Ref. 27121). Subtropical; 44°N - 35°S

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Northeast Atlantic: from Spain (Bay of Biscay) to Morocco and Madiera, including the Mediterranean Sea.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m ?, range 44 - ? cm
Max length : 63.0 cm TL mannelijk / geslacht onbekend; (Ref. 39256); 59.7 cm TL (female); common length : 35.0 cm TL mannelijk / geslacht onbekend; (Ref. 2683)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Anale stekels: 0. Snout short and bluntly pointed; disc angular (Ref. 5578). Upper surface prickly only in young, nearly smooth in adults, underside smooth (Ref. 3167). Upper surface ochre to reddish-brown with scattered dark spots, underside white (Ref. 3167); two bright blue eyespots centered on the pectoral bases (Ref. 5578); may have a small dark spot on tip of snout (Ref. 2708).

Found over soft bottoms of the shelf and the uppermost slope (Ref. 5578). Depth range from 17-300 m, and up to depth of 462 m in the eastern Ionian Sea (Ref. 56504). Feed on all kinds of benthic animals, also on fish offal (Ref. 5578). Oviparous. Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205). Eggs are oblong capsules with stiff pointed horns at the corners deposited in sandy or muddy flats (Ref. 205). Egg capsules are 4.2-4.6 cm long and 2.7-2.9 cm wide (Ref. 41250). About 40-72 eggs are lain by an individual in a year (Ref. 41250). Caught by ski-boat anglers (Ref. 5578).

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

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). With egg-cases laid from spring to summer (Ref. 3167). Distinct pairing with embrace. Young may tend to follow large objects, such as their mother (Ref. 205).

Hoofdreferentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

McEachran, J.D. and K.A. Dunn, 1998. Phylogenetic analysis of skates, a morphologically conservative clade of elasmobranchs (Chondrichthyes: Rajidae). Copeia 1998(2):271-290. (Ref. 27314)

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

Niet bedreigd (LC) ; Date assessed: 04 January 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: commercieel; sportvis: ja

FAO(visserij: productie; publication : search) | FishSource | Sea Around Us

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Estimates based on models

Preferred temperature (Ref. 115969): 13.1 - 25.6, mean 17.6 (based on 383 cells).

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00182 (0.00152 - 0.00218), b=3.27 (3.23 - 3.31), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.7 ±0.6 se; based on diet studies.

Weerstandsvermogen (Ref. 120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (51 of 100).

Prijsklasse (Ref. 80766): Medium.

Raja miraletus Linnaeus, 1758