Acroteriobatus annulatus, Lesser sandshark : fisheries, gamefish, aquarium

Acroteriobatus annulatus (Müller & Henle, 1841)

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

Elasmobranchii (Haie und Rochen) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
  More on authors: Müller & Henle.

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

; seewasser; brackwasser demersal; tiefenbereich 75 - ? m (Ref. 114953).   Subtropical; 17°S - 36°S, 10°E - 34°E (Ref. 114953)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Southeast Atlantic: Namibia to central Natal, South Africa. Record from Madagascar is uncertain (Ref. 3919).

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 140 cm TL Männchen/unbestimmt; (Ref. 3919)

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

Found from the surf line to about 70 m depth (Ref. 5578), also reported as common in shallow waters to at least 75 m depth (Ref. 114953); also enters estuaries (Ref. 27121). Feeds on crustaceans, bivalves, polychaete worms and small bony fishes (Ref. 5578). Ovoviviparous (Ref. 50449). Males mature at ca. 59 cm TL, females at 62-65 cm TL; born at ca. 23 cm TL. Produces litters of 2-10 pups (Ref. 114953). Taken by surf anglers (Ref. 3919). Flesh highly esteemed (Ref. 3919). It is parasitised by the monogeneans Pseudoleptobothrium christisoni on the dorsal skin surface (Ref. 124055) and Neoheterocotyle robii on the gill lamellae (Ref. 124054).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | 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). 2-10 young born in the summer (Ref. 5578).

Hauptreferenz Upload your references | Referenzen | Koordinator : McEachran, John | Partner

Compagno, L.J.V., 1986. Rhinobatidae. p. 128-131. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 3919)

IUCN Rote Liste Status (Ref. 123251)

  gefährdet, siehe IUCN Red List (VU) (A2bcd); Date assessed: 01 August 2019

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: kommerziell; Sportfisch: ja; Aquarium: Kommerziell
FAO - Publication: search | FishSource |

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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 16.1 - 25.7, mean 22 °C (based on 36 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5039   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00219 (0.00126 - 0.00381), b=3.06 (2.90 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.48 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Fec=2).
Verwundbarkeit (Ref. 59153):  Moderate to high vulnerability (49 of 100) .
Preiskategorie (Ref. 80766):   Low.