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

Elasmobranchii (sharks and rays) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335).

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

Marine; demersal; depth range ? - 35 m (Ref. 114953). Tropical; 35°N - 10°N, 97°W - 60°W (Ref. 114953)

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Western Atlantic: North Carolina to northeastern Brazil, including the Gulf of Mexico, Caribbean Sean and the islands of the West Indies. Not in Compagno's 1999 checklist (Ref. 35766). Reported in Brazil (Ref. 53431).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 65.0 cm TL male/unsexed; (Ref. 114953)

A benthic species on continental and insular shelves. Mainly feeds on invertebrates suction-fed off the bottom. Produces up to 16 embryos during each gestation. Maturity size of males at ca. 23 cm TL; birth size observed to be ca. 9 cm TL (Ref. 114953).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator : Carvalho, Marcelo | Collaborators

de Carvalho, M.R., 1999. Systematic revision of the electric ray genus Narcine Henle, 1834 (Chondrichthyes: Torpediniformes: Narcinidae), and the higher-level phylogenetic relationships of the orders of elasmobranch fishes (Chondrichthyes). Unpublished Ph.D. thesis, the City University of New York. (Ref. 31157)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 23 November 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

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

Bayesian length-weight: a=0.01175 (0.00476 - 0.02897), 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 (Ref. 69278): 3.1 ±0.3 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).

Narcine bancroftii (Griffith & Smith, 1834)