Zapteryx exasperata, Banded guitarfish : fisheries

Zapteryx exasperata (Jordan & Gilbert, 1880)

Banded guitarfish
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Zapteryx exasperata   AquaMaps   Data sources: GBIF OBIS
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Image of Zapteryx exasperata (Banded guitarfish)
Zapteryx exasperata
Photo von Murch, A.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (Haie und Rochen) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Trygonorrhinidae (Banjo rays, Fiddler rays)
Etymology: Zapteryx: Greek, za = an augmentative particle + Greek, pteryx, wing, fin (Ref. 45335).
More on authors: Jordan & Gilbert.

Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie

seewasser riff-verbunden; tiefenbereich 1 - 200 m (Ref. 37955), usually 1 - 22 m (Ref. 12951). Subtropical; 37°N - 20°N, 125°W - 108°W (Ref. 114953)

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Eastern Pacific: California, USA to Mexico, records to Peru probably misidentifications.

Länge bei der ersten Reifung / Größe / Gewicht / Alter

Geschlechtsreife: Lm 68.0, range 57 - 77 cm
Max length : 83.0 cm Männchen/unbestimmt; (Ref. 48844); 97.0 cm (female)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Wirbelzahl: 149 - 150. Spiral valve count: 8-10. Broad disc is about as wide as it is long; dorsal surface covered with numerous, small to large, scattered, stellate prickles; a single median row of enlarged thorns running along the mid-back; a broad, short snout; small, blunt, pebble like teeth; a dorsal fin that originates closer to the pelvic fin bases than to the caudal fin origin; a thick tail and a moderately large, rounded caudal fin without a distinct lower lobe. Tooth count: 60-75/60-75. Coloration: The dorsal surface is sandy brown to dark gray, with several prominent black bars, and lighter below with dark spots on the posterior edge of the pectoral fins.
Body shape (shape guide): other.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Generally in rocky areas mainly shallower than 10 m, moves offshore onto soft bottoms in autumn and winter; but may also be found on sandy bottoms (Ref. 37955, Ref. 114953). Reported from tide pools (Ref. 12951). Relatively docile, harmless rays that are easily approached by divers (Ref. 48844). Feeds mainly on mollusks and crustaceans (Ref. 37955). Ovoviviparous (Ref. 50449), with 4 to 11 pups in a litter (Ref. 51576). Maturity size of males at 64-70 cm TL, females at 57-77 cm TL; birth size at 15-18 cm TL (Ref. 114953). Seldom buries itself in sand. This species is a commercially important part of artisanal fisheries (Ref. 114953). Etymology: The genus name comes from the Greek za, meaning intensive, and pteryx, meaning fin, in reference to the vertical fins being larger than those of skates. The species name comes from Latin, meaning made rough, in reference to the numerous stellate prickles on its back. (Ref. 48844).

Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven

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). During breeding season, male and female adult schools congregate in shallow areas of bays and lagoons (Ref. 51576). Parturition takes place three to four months after mating, with litters of 4 to 11 pups (Ref. 48844).

Hauptreferenz Laden Sie Ihre Referenzen hoch | Referenzen | Koordinator | Partner

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))

  Verwundbar (VU) (A2cd); Date assessed: 04 March 2025

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: weniger kommerziell
FAO - Publication: search | FishSource |

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Schätzungen auf der Grundlage von Modellen

Phylogenetischer Diversitätsindex
(Ref. 82804) 		PD50 = 0.6289 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00724 (0.00272 - 0.01929), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophische Ebene
(Ref. 69278) 		3.6   ±0.53 se; based on food items.
Generation time 7.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Widerstandsfähigkeit
(Ref. 120179) 		sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec = 4).
Anfälligkeit der Fischerei
(Ref. 59153) 		High vulnerability (63 of 100). 🛈
Preiskategorie
(Ref. 80766) 		Medium.
Nährstoffe
(Ref. 124155) 		Calcium = 9.41 [1.30, 36.16] mg/100g; Iron = 0.385 [0.093, 1.046] mg/100g; Protein = 19.9 [17.7, 21.9] %; Omega3 = 0.146 [0.062, 0.340] g/100g; Selenium = 16.5 [4.8, 49.0] μg/100g; VitaminA = 34.4 [11.2, 110.6] μg/100g; Zinc = 0.605 [0.292, 1.289] mg/100g (wet weight);