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Elasmobranchii (Haie und Rochen) (sharks and rays) > Myliobatiformes (Stingrays) > Dasyatidae (Stingrays) > Dasyatinae
Etymology: Dasyatis: Greek, dasys = rough, dense (Ref. 45335).

Issue
Distribution needs review.

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

seewasser demersal; tiefenbereich 1 - 110 m (Ref. 114953). Tropical; 15°S - 36°S, 10°E - 34°E (Ref. 114953)

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Southeast Atlantic: central Angola to at least St. Lucia, Natal, South Africa, possibly extending to Mozambique. Reported from the Comoros, Reunion and Madagascar (Ref. 33390).

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 75.0 cm WD Männchen/unbestimmt; (Ref. 36731)

Found in shallow bays, sheltered sandy beaches in summertime, moves to deeper waters during winter. Feeds on bony fishes and crustaceans such as crabs, shrimps and mantis shrimps (Ref. 36731); including sea lice and marine worms (Ref. 114953). Ovoviviparous (Ref. 50449). Litters of 1-5 pups (Ref. 114953). Often caught by shore anglers (Ref. 36731). It is parasitised by the monogenean Dendromonocotyle citrosa on the dorsal skin surface (Ref. 124058).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | 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). Distinct pairing with embrace (Ref. 205).

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

Cowley, P.D. and L.J.V. Compagno, 1993. A taxonomic re-evaluation of the blue stingray from southern Africa (Myliobatiformes: Dasyatidae). S. Afr. J. Mar. Sci. 13:135-149. (Ref. 33465)

IUCN Rote Liste Status (Ref. 130435)

Gefährdung zunehmend (NT) (A2bd); Date assessed: 01 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell

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Estimates based on models

Preferred temperature (Ref. 123201): 17.2 - 26.7, mean 24.8 °C (based on 64 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00646 (0.00265 - 0.01571), b=3.06 (2.86 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±0.65 se; based on food items.

Generation time: 15.7 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Widerstandsfähigkeit (Ref. 120179): niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Assuming fecundity<100).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (78 of 100).

Preiskategorie (Ref. 80766): Low.

Dasyatis chrysonota (Smith, 1828)