Pseudobatos productus, Shovelnose guitarfish : fisheries, gamefish

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Pseudobatos productus (Ayres, 1854)

Shovelnose 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.
Pseudobatos productus   AquaMaps   Data sources: GBIF OBIS
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Pseudobatos productus
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Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology: More on author: Ayres.

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

marien; brak water demersaal; diepte 1 - 91 m (Ref. 48844), usually 1 - 13 m (Ref. 48844). Tropical; 38°N - 18°N, 123°W - 106°W (Ref. 114953)

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Eastern Pacific: endemic to the eastern Pacific from San Francisco, USA to the Gulf of California, and possibly to Mazatlan, Mexico (Ref. 48844).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm ?, range 57 - ? cm
Max length : 119 cm TL mannelijk / geslacht onbekend; (Ref. 48844); 170.0 cm TL (female); max. gepubliceerd gewicht: 9.8 kg (Ref. 40637); max. gepubliceerd gewicht: 9.8 kg; max. gerapporteerde leeftijd: 16 Jaren (Ref. 48844)

Korte beschrijving Morfologie | Morfometrie

Broad disc is greater in length than width; a relatively smooth dorsal surface except for a single row of thorns around the eyes and extending along the back and tail; a long, pointed snout with a rounded tip; small, rounded, pebble-like teeth; a first dorsal fin that originates closer to the pelvic fin base than to the caudal fin origin; a thick tail and a moderately large caudal fin without a distinct lower lobe. Tooth count: 102-112/98-117. Spiral valve count: 8-10.

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found on sand or mud bottoms of bays, seagrass beds, estuaries, and near rocky reefs. Nomadic and gregarious. Found singly or in aggregations (Ref. 12951). Burrows in sand during the day, feeds on crabs, worms, clams and small fishes at night (Ref. 12951). Ovoviviparous, with 6 to 28 pups in a litter (Ref. 48844). Females mature by 7 years at 87-99 cm TL; males reaches 91-110 cm TL; birth size at 20-24 cm TL (Ref. 114953). Etymology: The genus comes from the Greek word rhine, meaning shark, and the Latin word batis, meaning ray, in reference to its body form being intermediate between that of a shark and a ray. The species name comes Latin, meaning produced, in reference to its pointed snout (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). Adults of both sexes congregate during the breeding season in shallow bays and estuaries and likewise leave when the pupping season is over after mating (Ref. 48844). Gestation lasts for about 12 months (Ref. 48844).

Hoofdreferentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

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)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Gevoelig (NT) ; Date assessed: 17 December 2014

CITES


CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless (Ref. 2850)





Gebruik door de mens

Visserij: commercieel; sportvis: ja
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Estimates based on models

Preferred temperature (Ref. 123201): 15.3 - 25.9, mean 22.4 °C (based on 149 cells).
Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00209 (0.00137 - 0.00319), b=3.10 (2.98 - 3.22), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.6   ±0.3 se; based on diet studies.
Generation time: 11.0 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (tm=7; tmax=11; K=0.1; Fec = 6).
Fishing Vulnerability (Ref. 59153):  High vulnerability (65 of 100).
Prijsklasse (Ref. 80766):   Low.
Nutrients (Ref. 124155):  Calcium = 32.6 [8.1, 140.3] mg/100g; Iron = 0.666 [0.163, 1.807] mg/100g; Protein = 18.8 [16.7, 20.7] %; Omega3 = 0.146 [0.065, 0.333] g/100g; Selenium = 50.9 [14.7, 138.9] μg/100g; VitaminA = 12.1 [5.5, 26.8] μg/100g; Zinc = 1.03 [0.51, 1.86] mg/100g (wet weight);