Notoraja sapphira, Sapphire Skate

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Notoraja sapphira Séret & Last, 2009

Sapphire Skate
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Notoraja sapphira   AquaMaps   Data sources: GBIF OBIS
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Image of Notoraja sapphira (Sapphire Skate)
Notoraja sapphira
Male picture by Séret, B./Last, P.R.

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

Elasmobranchii (sharks and rays) > Rajiformes (Skates and rays) > Arhynchobatidae (Softnose skates)
Etymology: Notoraja: Greek, noton = back + Latin, raja = fish, Raja sp. (Ref. 45335);  sapphira: From the Greek sappheiros in reference to its intense blue dorsal coloration resembling that of a dark sapphire (gemstone)..
More on authors: Séret & Last.

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

Marine; benthopelagic; depth range 1195 - 1313 m (Ref. 81757). Subtropical; 25°S - 35°S, 167°E - 169°E (Ref. 114953)

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

West Pacific: Coral Sea and Tasman Sea. Known only from the five type specimens collected on the slopes of the Norfolk Ridge. Also from New Caledonia (Ref. 86942, Ref. 114953).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 36.0 cm TL male/unsexed; (Ref. 81757); 41.3 cm TL (female)

Short description Morphology | Morphometrics

This medium-size (413 mm TL) species is distinguished by the following set of characters: heart-shaped disc with a short projected snout tip; disc slightly wider than long, its width 51-54% of TL, and length 47-48% TL; short snout, its preorbital snout length 12-15% TL, preoral snout length 12-15% TL; interorbital width 3.6-4.1% TL; interspiracular width 6.0-6.6% TL; long and slender tail, its length from posterior margin of cloaca to tip of tail 54-58% TL; dorsal surface of disc largely free of dermal denticles; rostrum with some denticles, without thorns; a small but distinct preorbital thorn on anterior upper orbital rim; denticles present on posterior mid-dorsal trunk; tail prickly with dense, irregular and randomly arranged thorns; mid-dorsal row on tail hardly distinct from the rest of thorn pattern; naked ventral surface of disc and tail; upper jaw with 29-36 tooth rows, lower with 28-32; pectoral-fin radials 67-70; monospondylous trunk centra 23-25; predorsal caudal diplospondylous centra 70-74; total number of centra 126-134; dorsal surface rich blue, uniform, with a narrow blackish outer margin; ventral surface of disc and tail brownish black, gill slits darker, cloaca opening and mouth corners whitish (Ref. 81757).

Biology     Glossary (e.g. epibenthic)

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

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

Séret, B. and P.R. Last, 2009. Notoraja sapphira sp. nov. (Rajoidei: Arhynchobatidae), a new deepwater skate from the slopes of the Norfolk Ridge (South-West Pacific). Zootaxa 2153:24-34. (Ref. 81757)

IUCN Red List Status (Ref. 130435)

  Data deficient (DD) ; Date assessed: 20 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00273 - 0.01106), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.7   ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (31 of 100).