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Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); tilstoni: In honor of Richard Tilston, naturalist-surgeon at Port Essignton, Northern Territory, near where holotype was collected in the 1840s (See ETYFish).
Eponymy: Richard Tilston was a naturalist who trained as a physician at Guy’s Hospital, London (1841) and became a naval surgeon (1842). [...] (Ref. 128868), visit book page.
More on author: Whitley.
Lingkungan: lingkungan / zona iklim / kisaran kedalaman / jangkauan distribusi
Ekologi
laut; payau pelagic-neritic; kisaran kedalaman 0 - 150 m (Ref. 6871). Tropical; 10°S - 28°S
Indo-West Pacific: currently known only from the continental shelf of tropical Australia. Very similar to Carcharhinus limbatus and reliably distinguished only by biochemical studies and vertebral counts (Ref. 9819).
Panjang pada saat jatuh tempo pertama / Ukuran / Berat / umur
Kematangan: Lm ?, range 115 - ? cm
Max length : 200 cm TL jantan/; (Ref. 9997); Berat maksimum terpublikasi: 52.0 kg (Ref. 6390); Umur maksimum dilaporkan: 12 Tahun (Ref. 6390)
Duri punggung (Keseluruhan (total)) : 0; Duri dubur: 0. Back dark grey, ashy blue or dusky bronze; belly white or yellowish white; a dark band extending rearward along each side to about over origin of pelvic fin; tips of pelvic fins with a persistent black spot (Ref. 9997).
Body shape (shape guide): fusiform / normal.
Found on the continental shelf from close inshore to about 150 m depth (Ref. 9997). Found throughout the water column but usually near the sea bed during the day and near the surface at night (Ref. 6390). Prefers teleost fishes but also feeds on cephalopods to a lesser degree. Viviparous (Ref. 50449). Forms large aggregations (Ref. 6871). Utilized for its meat and fins (Ref. 6871). The flesh has a relatively high mercury content (Ref. 6871).
Viviparous, placental (Ref. 50449). The average litter size is 3, with a range of 1-6, average total length at birth is 60 cm. Pups are born in January after a 10-month gestation period. These sharks breed once each year (Ref. 13440). Distinct pairing with embrace (Ref. 205).
Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993. Australian fisheries resources. Bureau of Resource Sciences, Canberra, Australia. 422 p. (Ref. 6390)
Status IUCN Red List (Ref. 130435: Version 2025-2 (Global))
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: nilai komersial kecil
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimasi berdasarkan model
Indeks keanekaragaman filogenetik (Acuan 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00525 (0.00243 - 0.01135), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Tingkat Trofik (Acuan 69278) |
4.2 ±0.6 se; based on diet studies. |
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Generation time |
7.8 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
Daya lenting (Acuan 120179) |
Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (K=0.14; tm=3-4; tmax=12). |
Kerentanan Penangkapan Ikan (Ref. 59153) |
High to very high vulnerability (70 of 100). 🛈 |
kategori harga (Ref. 80766) |
Medium.
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