Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Torpediniformes (Electric rays) > Platyrhinidae (Fanrays)
Etymology: Platyrhinoidis: Greek, platys = flat + Greek, rhinos = nose + Greek, oides = similar to (Ref. 45335).
More on authors: Jordan & Gilbert.

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

marina bottenlevande; djupintervall 0 - 137 m (Ref. 96339). Subtropical; 38°N - 23°N, 124°W - 108°W (Ref. 114953)

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eastern Pacific: San Francisco, USA to Baja California, Mexico.

Length at first maturity / Size / Vikt / Age

Maturity: L_m ?, range 48 - ? cm
Max length : 91.0 cm TL hane/ej könsbestämd; (Ref. 2850)

Inhabits fine sand to mud bottom, often near kelp beds and sometimes abundant on mud flats of coastal bays. Often buries itself in bottom sediments. Ranges from the intertidal zone to 50 m depth (Ref. 12951). Solitary or in small groups, gathers in shallow bays, lagoons, and off beaches (Ref. 12951, Ref. 114953). Feeds on small sand-dwelling crustaceans, worms and mollusks. Ovoviviparous (Ref. 50449), with 1 to 15 pups in a litter (Ref. 48844), mainly in August (Ref. 114953). Possesses ampullary electroreceptors with a region of maximum sensitivity of 5-15 Hz (Ref. 10011).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

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

Least Concern (LC) ; Date assessed: 07 October 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless (Ref. 12951)

Human uses

FAO - Publication: search | FishSource |

Ytterligare information

Trophic ecology
Födoslag
Födosammansättning
Födointag
Food rations
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Ecology
Ekologi

Population dynamics
Tillväxtparametrar
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Life cycle
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Lek
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Larver
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Estimates based on models

Preferred temperature (Ref. 123201): 15.3 - 23.1, mean 20.6 °C (based on 38 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [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).

Trofisk nivå (Ref. 69278): 3.4 ±0.42 se; based on food items.

Resiliens (Ref. 120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Fec = 1).

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Platyrhinoidis triseriata (Jordan & Gilbert, 1880)