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Ikan bertulang rawan (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Eponymy: Marcus Élieser Bloch (1723–1799) was a German physician and naturalist specialising in ichthyology. [...] (Ref. 128868), visit book page.
More on authors: Müller & Henle.

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

laut berasosiasi dengan karang. Tropical; 23°S - 35°S, 12°E - 18°E (Ref. 114953)

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

Southeast Atlantic: South Africa to Namibia.

Size / Weight / umur

Maturity: L_m ? range ? - ? cm
Max length : 100.0 cm TL jantan/; (Ref. 6497)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

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

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 Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | 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).

rujukan utama Upload your references | Acuan | Koordinator : McEachran, John | mitra

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 IUCN Red List (Ref. 130435: Version 2024-2)

kurang bimbang (LC) ; Date assessed: 25 April 2018

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

ancaman kepada manusia

Harmless

penggunaan manusia

Perikanan:

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Preferred temperature (Ref. 123201): 16.2 - 27.9, mean 25.5 °C (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).

Trophic level (Ref. 69278): 3.6 ±0.5 se; based on size and trophs of closest relatives

Daya lenting (Ref. 120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (Fec assumed to be <100).

Fishing Vulnerability (Ref. 59153): High vulnerability (60 of 100).

kategori harga (Ref. 80766): Low.

Acroteriobatus blochii (Müller & Henle, 1841)