Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335); fijiensis: Named for its type locality, Fiji..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 567 - 699 m (Ref. 91035). Tropical; 16°S - 19°S, 177°E - 178°W (Ref. 114953)
Western Pacific: Fiji.
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 31.0 cm TL mannelijk / geslacht onbekend; (Ref. 91035); 39.5 cm TL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
This species (probably of medium size) is distinguished by the following set of characters: a small but conspicuous preorbital thorn; velvety dorsal surface of disc which is covered with fine denticles; velvety ventral surface with widely spaced and very fine denticles; long and slender tail, entirely velvety and without enlarged thorns; lateral tail folds are not expanded distally, narrower than tail for their whole length; nasal lobes are not greatly expanded, width of nasal curtain 7.3-8.3% TL; relatively small mouth, width more than 66% of maximum width of nasal curtain and 5.7-6.2% TL; anterior pelvic-fin lobe is shorter than posterior lobe; dorsal surfaces plain pale yellowish brown, ventral surface creamy white; total pectoral-fin radials 64-66, monospondylous centra 25, total diplospondylous centra 119-127, total number of centra 144-152 (Ref. 91035).
Found on nearby insular slope. Life history unknown (Ref. 114953).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Séret, B. and P.R. Last, 2012. New deep water skates of the genus Notoraja Ishiyama, 1958 (Rajoidei, Arhynchobatidae) from the southwest Pacific. Zoosystema, 34 (2):319-341. (Ref. 91035)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Preferred temperature (Ref.
123201): 8.5 - 9.8, mean 8.6 °C (based on 6 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.7 ±0.7 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Preliminary low fecundity).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).
