Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (sharks and rays) > Torpediniformes (Electric rays) > Narkidae (Sleeper rays)
Etymology: Typhlonarke: Greek, typhlops = blind + Greek, narke = numbness (Ref. 45335).

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

marino batidemersale; distribuzione batimetrica 65 - 900 m (Ref. 26346), usually 300 - 400 m (Ref. 114953). Deep-water; 42°S - 47°S, 169°E - 176°E (Ref. 114953)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Southwest Pacific: endemic to New Zealand.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 45.0 cm TL maschio/sesso non determinato; (Ref. 114953)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine anali: 0. Dark brown dorsally, light brown ventrally (Ref. 26346).

Found on the continental shelf and slope (Ref. 26346). Produces up to 11 pups a litter. Males reaches maturity at 35-40 cm TL; birth size at 9-10 cm TL (Ref. 114953).

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Presumably ovoviviparous, with up to 11 young born at 9-10 cm (Ref. 26346).

Main reference Upload your references | Bibliografia | Coordinatore : Carvalho, Marcelo | Collaboratori

Cox, G. and M. Francis, 1997. Sharks and rays of New Zealand. Canterbury Univ. Press, Univ. of Canterbury. 68 p. (Ref. 26346)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 22 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori

Ecology
Ecologia

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances

Life cycle
Riproduzione
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larve
Dinamica popolazioni larvali

Distribution
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Aree FAO
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Anatomy
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Physiology
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Visual pigment(s)
Suoni dei Pesci
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Toxicities (LC50s)

Genetics
Genetica
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Human related
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Profili di acquacoltura
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Stamps, coins, misc.

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7502 [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).

Trophic level (Ref. 69278): 3.3 ±0.3 se; based on size and trophs of closest relatives

Resilienza (Ref. 120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (35 of 100).

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