Classification / Names
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sub class Elasmobranchii (ฉลามและกระเบน) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Urogymninae
Etymology: astra: Name from Latin 'astrum' for star or constellation, refers to the dorsal coloration, which usually consists of dark spots orbited in various ways by whitish spots, vaguely resembling a cluster of stars, evident in larger specimens..
More on authors: Last, Manjaji-Matsumoto & Pogonoski.
Environment: milieu / climate zone / depth range / distribution range
นิเวศวิทยา
เกี่ยวกับทะเล,น้ำเค็ม กลุ่มสัตว์หน้าดิน,กลุ่มสัตว์พื้นท้องน้ำ; ระดับความลึก 1 - 141 m (Ref. 76963). Tropical; 1°S - 29°S, 111°E - 155°E (Ref. 114953)
Indo-West Pacific: Australia, to West Papua, Indonesia; including Timor Sea (Ref. 76936); southern New Guinea (Ref. 114953).
Length at first maturity / ขนาด / น้ำหนัก / Age
Maturity: Lm ?, range 50 - ? cm
Max length : 180 cm WD เพศผู้/กระเทย; (Ref. 76963)
A demersal species found inshore, over muddy bottoms or mangrove flats to 140 m depth. Litters of 1-3 pups. Feeds mainly on prawns and crabs (Ref. 114953). Birth size for this species is about 17-19 cm WD (Ref. 76963).
Life cycle and mating behavior
Maturities | การสืบพันธุ์ | Spawnings | Egg(s) | Fecundities | ตัวอ่อน
Last, P.R., B.M. Majajii-Matsumoto and J.J. Pogonoski, 2008. Himantura astra sp. Nov., a new whipray (Myliobatoidei: Dasyatidae) from Northern Australia. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76963)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 24.5 - 28.8, mean 27.7 °C (based on 748 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00606 - 0.04338), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ระดับชั้นอาหาร (Ref.
69278): 3.7 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).