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
Afbeelding van Murch, A.

Classificatie / Namen Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (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.

Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied Ecologie

marien rifbewoner; diepte 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.

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturiteit: Lm 68.0, range 57 - 77 cm
Max length : 83.0 cm mannelijk / geslacht onbekend; (Ref. 48844); 97.0 cm (female)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Wervels: 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     Verklarende woordenlijst (bv. 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).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | 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).

Hoofdreferentie Upload uw referenties | Referenties | Coördinator | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van minder commercieel belang
FAO - Publication: search | FishSource |

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Schattingen op basis van modellen

Fylogenetische diversiteitsindex
(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).
Trofisch niveau
(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.
Weerstandsvermogen
(Ref. 120179) 		Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (Fec = 4).
Kwetsbaarheid van de visserij
(Ref. 59153) 		High vulnerability (63 of 100). 🛈
Prijsklasse
(Ref. 80766) 		Medium.
Voedingsstoffen
(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);