Elasmobranchi (squali e razze) (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335).
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino demersale; distribuzione batimetrica 10 - 35 m (Ref. 116153). Tropical
Southeast Pacific: Colombia and Ecuador.
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 16.5 cm TL maschio/sesso non determinato; (Ref. 116153); 33.0 cm TL (female); peso massimo pubblicato: 54.90 g (Ref. 116153); peso massimo pubblicato: 54.90 g
Collected from shallow and sandy bottom area. The 33 cm TL pregnant female has a total of 12 embryos with 2 females and 10 males, measuring between 6.2 and 6.8 cm TL (Ref. 116153). Males mature at ca. 18 cm TL (Ref. 114953).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Eschmeyer, W.N. (ed.), 2003. Catalog of fishes. Updated database version of March 2003. Database dump. Catalog databases as made available to FishBase in March 2003. (Ref. 46206)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 26.8 - 27.3, mean 27.1 °C (based on 12 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [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 (Fonte Biblio.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).
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