Acroteriobatus blochii, Bluntnose guitarfish

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Acroteriobatus blochii (Müller & Henle, 1841)

Bluntnose guitarfish
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Acroteriobatus blochii
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (haaien en roggen) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
  More on authors: Müller & Henle.

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

; marien rifbewoner.   Tropical; 23°S - 35°S, 12°E - 18°E (Ref. 114953)

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Southeast Atlantic: South Africa (Cape Province) to Namibia (where it is common in Walvis Bay). Records from Angola, Senegal and Mauritania are uncertain (Ref. 114953).

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL mannelijk/geslacht niet bekend; (Ref. 6497)

Korte beschrijving Morfologie | Morfometrie

A guitarfish with a broadly pointed snout and a broad pectoral disc (Ref. 5578). Plain brown above, young with white spots (Ref. 5578).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

A rare and unknown species found inshore, in shallow bays and off sandy beaches (Ref. 5578). Ovoviviparous (Ref. 50449). Reaches 96 cm TL (Ref. 114953).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | 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).

Voornaamste referentie Upload your references | Referenties | Coördinator : McEachran, John | Medewerkers

Stehmann, M., 1990. Rhinobatidae. p. 23-27. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 6497)

Status op de Rode Lijst van het IUCN (Ref. 120744)

  Niet bedreigd (LC) ; Date assessed: 02 February 2006

CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Aquatic Commons | BHL | Cloffa | Websites from users | Bekijk FishWatcher gegevens | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genoom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia(ga naar, zoek) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 16.2 - 27.9, mean 25.5 (based on 265 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00158 - 0.00634), b=3.11 (2.93 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.5   ±0.5 se; Based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  laag, minimale populatieverdubbelingstijd 4,5-14 jaar (Fec assumed to be <100).
Kwetsbaarheid (Ref. 59153):  High vulnerability (55 of 100) .