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इलाज़मौबरांकी (शारक और रेज़) (sharks and rays) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: lasti: Named for Dr. Peter R. Last, in recognition of his studies in the taxonomy and distribution of Australian elasmobranchs.
Eponymy: Dr Peter Robert Last is an eminent Australian ichthyologist who is the senior taxonomist and Senior Principal Research Scientist at CSIRO Marine and Atmospheric Research Hobart. [...] (Ref. 128868), visit book page.

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

समुद्री ड़िमरसल; गहराई सीमा 178 - 350 m (Ref. 75154). Tropical; 8°S - 32°S, 111°E - 132°E (Ref. 114953)

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Eastern Indian Ocean: Australia (Western Australia to off the Northern Territory) and Arafura Sea (SE Indonesia, south of Tanimbar I.).

आकार / वज़न / Age

परिपक्व अवधि: L_m ? range ? - 24 cm
Max length : 36.5 cm TL पुल्लिंग / अलिंग; (Ref. 93928)

Short description पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स

This species is distinguished by the following characters: tail length as measured from cloaca much longer than disc width or length (means: tail length 53.7% of TL, vs. disc width 40.3% of TL and disc length 42.1% TL); nasal curtain much wider than long; colour pattern dorsally uniform light yellowish-brown, which is also present over preorbital snout region, no distinctive spotting or markings over disc and tail; low and inconspicuous lateral tail ridge, not resembling a distinct fold; mean preorbital snout length just over 10% of TL (Ref. 93928).
Body shape (shape guide): other.

Usually found over sandy and muddy bottoms (Ref. 93928). Maturity size reaches at ca. 24 cm TL; born at ca. 7-8 cm TL. Biology little known (Ref. 114953).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Main reference Upload your references | संदर्भ | संयोजक : Carvalho, Marcelo | सहयोगीयो

de Carvalho, M.R. and B. Séret, 2002. Narcine lasti: a new species of numbfish from Western Australia and Indonesia (Chondrichthyes: Torpediniformes: Narcinidae). Rec. Western Australia Mus. 20:393-408. (Ref. 93928)

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

Least Concern (LC) ; Date assessed: 13 May 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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इंटरनेट स्रोत

Estimates based on models

Preferred temperature (संदर्भ 123201): 13.2 - 17.5, mean 15.6 °C (based on 19 cells).

Phylogenetic diversity index (संदर्भ 82804): PD₅₀ = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (संदर्भ 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

लौटाव (संदर्भ 120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Low to moderate vulnerability (27 of 100). 🛈

Narcinops lasti (Carvalho & Séret, 2002)