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Acroteriobatus blochii (Müller & Henle, 1841)

Bluntnose guitarfish
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South Africa country information

Common names: Bluntnose fiddlefish, Bluntnose guitarfish, Stompneus-sandkruiper
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Reported on the west coast south to Table Bay (Ref. 11228), Cape Province (Ref. 114953). Also Ref. 3919, 5578.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/sf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Heemstra, P.C., 1995
National Database:

Common names from other countries

Classification / Names Nombres comunes | Sinónimos | Catalog of Fishes(Género, Especie) | ITIS | CoL | WoRMS | Cloffa

Elasmobranquios (tiburones y rayas) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology:   More on authors: Müller & Henle.

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

marino asociado a arrecife.   Tropical; 23°S - 35°S, 12°E - 18°E (Ref. 114953)

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Point map | Introducciones | Faunafri

Southeast Atlantic: South Africa to Namibia.

Tamaño / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 100.0 cm TL macho / no sexado; (Ref. 6497)

Short description Morfología | Morfometría

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

Biología     Glosario (por ej. 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 Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

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 | Referencias | Coordinador : McEachran, John | Colaboradores

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)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 25 April 2018

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

Más información

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Áreas FAO
Ecosistemas
Ocurrencias, apariciones
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Ecología
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componentes alimenticios
consumo de alimento
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Madurez
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Fecundidad
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Age/Size
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Length-frequencies
Morfometría
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Larva
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heritabilidad
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Fuentes de Internet

Estimates based on models

Preferred temperature (Ref. 115969): 16.2 - 27.9, mean 25.5 (based on 265 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00151 - 0.00578), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Ref. 69278):  3.6   ±0.5 se; based on size and trophs of closest relatives
Resiliencia (Ref. 120179):  Bajo, población duplicada en un tiempo mínimo de 4.5-14 años (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  High vulnerability (60 of 100).