Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Rajidae (Skates)
Etymology: Dipturus: Greek, di = two + Greek, pteryx = fin (Ref. 45335).

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

Marine; demersal; depth range 15 - 1310 m (Ref. 26346). Deep-water; 33°S - 43°S, 166°E - 178°W (Ref. 114953)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southwest Pacific: endemic to New Zealand.

Length at first maturity / Size / Weight / Age

Maturity: L_m 112.0 range ? - ? cm
Max length : 240 cm TL male/unsexed; (Ref. 26346); common length : 80.0 cm TL male/unsexed; (Ref. 9258); max. reported age: 24 years (Ref. 47618)

Short description Identification keys | Morphology | Morphometrics

Grey with scattered charcoal blotches dorsally, greyish-white ventrally (Ref. 26346).

Occurs in coastal waters, continental shelf and upper slope (Ref. 26346). Usually found in deeper waters to 200 m (Ref. 9258). Mainly feeds on benthic decapods and bony fishes (Ref. 114953). Oviparous (Ref. 50449). Eggs have horn-like projections on the shell (Ref. 205). Males reaches maturity at ca. 150 cm TL. This species is said to be long lived and slow growing (Ref. 114953).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Young hatch at about 20-23 cm (Ref. 26346).

Main reference Upload your references | References | Coordinator : McEachran, John | Collaborators

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)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 21 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 6.4 - 12.9, mean 8.2 °C (based on 173 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00224 (0.00133 - 0.00376), b=3.24 (3.10 - 3.38), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.6 se; based on size and trophs of closest relatives

Generation time: 11.6 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (80 of 100).

Price category (Ref. 80766): Medium.

Dipturus innominatus (Garrick & Paul, 1974)