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Elasmobranchii (sharks and rays) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: Diplobatis: Greek, diploos = twice + Greek, batis, -idos = a ray (Raja sp) (Ref. 45335).
More on authors: Jordan & Gilbert.

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

Marine; reef-associated; depth range 3 - 94 m (Ref. 96339), usually ? - 65 m (Ref. 114953). Tropical; 28°N - 2°S, 113°W - 83°W (Ref. 114953)

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

Eastern Pacific: Gulf of California to Ecuador.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 9259)

A nocturnal and solitary species found on sand and rock bottoms, in bays and on coral reefs (Ref. 12951). Feeds on small crustaceans, worms, and fishes (Ref. 37955). The smallest adult males known ca. 15 cm TL, females ca. 18 cm TL (Ref. 114953).

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

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

McEachran, J.D., 1995. Narcinidae. Rayas eléctricas. p. 769-771. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para los Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9259)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 07 February 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Other (Ref. 4537)

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
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Aquaculture profiles
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Ciguatera cases
Stamps, coins, misc.

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Taxonomy
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References
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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 22.4 - 28.9, mean 26.4 °C (based on 72 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01413 (0.00680 - 0.02934), b=2.87 (2.68 - 3.06), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.48 se; based on food items.

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

Fishing Vulnerability (Ref. 59153): Low vulnerability (15 of 100).

Nutrients (Ref. 124155): Calcium = 14 [2, 221] mg/100g; Iron = 0.518 [0.044, 5.651] mg/100g; Protein = 15.7 [11.5, 20.1] %; Omega3 = 0.119 [0.038, 0.345] g/100g; Selenium = 28.3 [4.6, 136.1] μg/100g; VitaminA = 62.7 [4.4, 812.4] μg/100g; Zinc = 1.43 [0.10, 16.00] mg/100g (wet weight);

Diplobatis ommata (Jordan & Gilbert, 1890)