Élasmobranches (requins et raies) (sharks and rays) >
Rajiformes (Skates and rays) >
Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335); alisae: Named for the French research vessel 'Alis' (name of a local wind) of the Institut de Recherche pour le Développement (IRD) in Nouméa, which was used for the numerous exploratory cruises performed in New Caledonian EEZ.
the name of a local wind..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathypélagique; profondeur 870 - 1049 m (Ref. 91035). Subtropical; 17°S - 35°S, 166°E - 172°E (Ref. 114953)
Western Pacific: New Caledonia. The dark form exhibits a wider latitudinal distribution (from southern Norfolk Ridge (35°8’S) in New Zealand’s EEZ to Espiritu Santo in Vanuatu).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 51.5 cm TL mâle / non sexé; (Ref. 91035); 54.5 cm TL (female)
Description synthétique
Morphologie | Morphométrie
This is a medium-size species with the following set of characters: disc wider than long, width 50.9-55.5% TL, length 43.8-45.7% TL; dorsal head length 17.1-19.0% TL; interspiracular distance 6.2-6.7% TL, internasal distance 7.0-8.5% TL, preorbital length 2.7-3.1 times orbit length, 3.4-3.6 interorbital; tail width at pelvic-fin axil 1.5-1.6 times its height; one rudimentary preorbital thorn; velvety dorsal and ventral surfaces of disc, covered with fine denticles; long and slender tail, entirely velvety and without enlarged thorns; lateral tail folds variably expanded posteriorly, its width sometimes greater than tail width at level of second dorsal fin; expanded nasal lobes, width of nasal curtain 8.1-9.8% TL; anterior pelvic-fin lobe shorter that posterior lobe; dorsal and ventral surfaces are pale greyish brown; total pectoral-fin radials 63; monospondylous centra 24-25, total diplospondylous centra 112-117, total centra 136-142 (Ref. 91035).
Found on insular slopes, mainly on hard bottoms. Rarely caught. Life history unknown (Ref. 114953).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Preferred temperature (Ref.
123201): 3.1 - 4.1, mean 3.4 °C (based on 9 cells).
Phylogenetic diversity index (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).
Niveau trophique (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (42 of 100).
![Image of Notoraja alisae (Alis\](/images/thumbnails/gif/tn_ARHYNCT0.gif "Image of Notoraja alisae (Alis\")
