Elasmobranchii (haaien en roggen) (sharks and rays) >
Rajiformes (Skates and rays) >
Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335); grahamorum: Named for the efforts of two unrelated Australasian ichthyologists, Alastair Graham (Australian National Fish collection) and and Ken Graham (NSW Depart.Primary Industries)..
More on author: Last.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien benthopelagisch; diepte 70 - 490 m (Ref. 75648), usually 250 - 450 m (Ref. 75648). Tropical; 25°S - 37°S, 151°E - 155°E (Ref. 114953)
Southwest Pacific: off eastern Australia.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 62.2 cm TL mannelijk / geslacht onbekend; (Ref. 75648); 64.1 cm TL (female)
A demersal species most commonly found on continental slope. Biology poorly known (Ref. 114953). No observed adolescent males, but with undeveloped claspers at 46.8 cm TL; adult males from 54.5- 62.2 cm TL, and smallest confirmed juvenile 18.3 cm TL (Ref. 75648).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Last, P.R., 2008. New short-snout members of the skate genus Dipturus (Rajoidei: Rajidae) from Australian seas. pp. 53-98. In Last, P.R., W.T. White, J.J. Pogonoski and D.C. Gledhill (eds.): Descriptions of new Australian skates (Batoidea: Rajoidei) pg. 53-98. CSIRO marine and atmospheric research paper no. 021. (Ref. 75648)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Estimates based on models
Preferred temperature (Ref.
123201): 12.9 - 18.9, mean 14.6 °C (based on 38 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00282 (0.00133 - 0.00596), b=3.25 (3.08 - 3.42), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.8 ±0.6 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): Moderate to high vulnerability (46 of 100).