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Black Stingray or Thorntail Stingray

Dasyatis thetidis

Description:

ADORED by holiday-makers and locals alike, no visit to picturesque Hamelin Bay was complete without patting Stumpy the stingray. The friendliest ray in the bay, affectionately dubbed Stumpy because it had no barb, was a hit with families and particularly children, who would stroke and feed it. That was until two young fishermen speared the creature and hacked it to pieces in front of distressed and screaming beachgoers last month. Angry locals are now mourning the loss of Stumpy and are demanding more protection for the bay's remaining stingrays - a key tourism attraction. Authorities were powerless to act because the bay, 30km south of Margaret River, is open to recreational fishing. WELCOME TO AUSTRALIA!!!

Habitat:

The black stingray, or longtail stingray (Dasyatis thetidis) is a species of stingray in the family Dasyatidae. It is found off southern Africa, Australia, and New Zealand from the intertidal zone to a depth of 440 m (1,440 ft). This bottom-dweller inhabits soft-bottomed habitats such as lagoons, estuaries, and reefs. Growing to 1.8 m (5.9 ft) across and over 200 kg (440 lb) in weight, the black stingray is among the largest stingrays in the world. Uniformly dark above and light below, it has a diamond-shaped pectoral fin disc and a very long, whip-like tail with a fin fold underneath. The upper surface of the disc and the tail bear numerous stout, sharp thorns. The diet of the black stingray consists of benthic invertebrates and bony fishes. It has been known to gather in large groups during summertime. Like other stingrays, it is aplacental viviparous, with the developing embryos sustained to term by histotroph (“uterine milk”) produced by the mother. The venomous stinging spine of the black stingray can inflict a painful injury, though it is not aggressive towards humans. It is caught by commercial and recreational fishers, though the impact of such activities on its population is unknown. As a result, the International Union for Conservation of Nature (IUCN) has listed this species as Data Deficient.

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1 Comment

Christiane
Christiane 11 years ago

New Photo uploaded..

Christiane
Spotted by
Christiane

6286, Western Australia, Australia

Spotted on Jan 11, 2010
Submitted on May 11, 2011

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Reference

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