Australia country information

Common names: Black-tipped whaler, Bronze shark whaler, Bronze whaler
Occurrence: native
Salinity: marine
Abundance: common (usually seen) | Ref:
Importance: minor commercial | Ref:
Aquaculture: | Ref:
Regulations: restricted | Ref:
Uses: gamefish: yes;
Comments: Occurs in southern Australia, from Jurien Bay in Western Australia to Coffs Harbour in New South Wales. Reports from off eastern Tasmania needs verification (Ref. 6871). Bronze whalers probably migrate following the warmer water southwards in the spring and summer and northwards in the autumn and winter. Migratory behaviour suggests a single stock in the area. Commercial fishery: The major commercial fishery is in Western Australia. In the southwestern area, bronze whalers are caught mainly with bottom set gillnets, bottom set longlines, droplines and handlines. Bronze whalers actually comprise only 5% of the combined catch for dusky and bronze whalers (Ref. 6871, 13841). In catch records they are often confused with dusky whalers. Since about 1976-80, fishing effort in the Southwest Shark Fishery in Western Australia has been increasing, reaching about 274% from 1980-81, and finally stabilising in 1987-88 (Ref. 13842). From then on until 1994, the Fishery has developed rapidly. Newly born and small juvenile bronze sharks are the prime target of the fishery, hence the annual variations in catch are probably dependent on the number of new recruits that are available to the fisheries (Ref. 6871, 13841, 13842). These species are also included as incidental catch of demersal otter trawling off southern Australia. In the South Australian inshore fishery, they are also caught in west coast bays, Spencer Gulf and Gulf of St. Vincent, off the Murray River mouth and the south-east coast. Bronze whalers are sold on local markets and their flesh is used in the fish-and-chip trade. Recreational fishery: Jetties such as at Giles Point and Rapid Bay in South Australia, and Lorne and Point Lonsdale in Victoria are frequented by gamefishers for catching bronze whalers. They use moderately heavy lines with wire or light chain traces, and gamefishing tackle. Resource status: Juveniles are mostly targeted in this fishery. However, the extent of the nursery areas is not known so the level of exploitation cannot be determined. There is little information on the status of the adults as well. Current levels of fishing may be sustainable probably if the stocks are not being fished over the extent of their range due to their migratory habits (Ref. 13842). Also Ref. 2334, 5978, 7300, 9997.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/as.html
National Fisheries Authority: http://www.csiro.au/
Occurrences: Occurrences Point map
Main Ref: Kailola, P.J., M.J. Williams, P.C. Stewart, R.E. Reichelt, A. McNee and C. Grieve, 1993
National Database:

Common names from other countries

Requin cuivre, Tiburón cobrizo, Bronze whaler, ... more

Classification / Names Tên thường gặp | Các synonym ( Các tên trùng) | Catalog of Fishes(Giống, Các loài) | ITIS | CoL | WoRMS | Cloffa

Lớp phụ Cá sụn (cá mập và cá đuối) (sharks and rays) > 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); brachyurus: a- (Gr.), not; carenatus, alternate spelling of carinatus (L.), keeled or carinate, referring to absence of dermal fold (dorsal ridge) between the dorsal fins [treated as a junior synonym of C. brachyurus by some workers]. (See ETYFish).
More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range Sinh thái học

Biển; Thuộc về nước lợ Cùng sống ở rạn san hô; Ở đại duơng, biển (Ref. 51243); Mức độ sâu 0 - 360 m (Ref. 58018). Subtropical; 45°N - 52°S, 122°W - 180°E

Sự phân bố Các nước | Các khu vực của FAO | Các hệ sinh thái | Những lần xuất hiện | Point map | Những chỉ dẫn | Faunafri

Western Atlantic: Mexico, Gulf of Mexico, Brazil to Argentina. Eastern Atlantic: off France southward and around the coast of southern Africa to central Natal, South Africa (Ref. 5578), including the Mediterranean. Possibly two separate populations in southern Africa (Ref. 3209). Western Pacific: Japan to New Zealand. Eastern Pacific: southern California, USA to the Gulf of California in Mexico and Peru.

Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age

Maturity: L_m 230.0, range 245 - 240 cm
Max length : 325 cm TL con đực/không giới tính; (Ref. 2334); Khối lượng cực đại được công bố: 304.6 kg (Ref. 40637); Tuổi cực đại được báo cáo: 30 các năm (Ref. 3209)

Short description Hình thái học | Sinh trắc học

Các tia vây lưng cứng (tổng cộng): 0; Các vây lưng mềm (tổng cộng): 0; Tia cứng vây hậu môn 0; Tia mềm vây hậu môn: 0. A large shark to with a bluntly pointed, broad snout, narrow, bent cusps on the upper teeth, and with no interdorsal ridge (Ref. 5578). Grey to bronzy in color, white below (Ref. 5578); fins mostly plain except for dusky tips on pelvic fins, as well as dusky to black tips and rear edges on pectoral fins (Ref. 9997).

A coastal and offshore shark (Ref. 9997) found along continental margins in most tropical and temperate seas. Occasionally enters large coastal bays and inshore areas (Ref. 6390). Occasionally found near the bottom (Ref. 6808). Migratory in the northern part of its range, moving northward in spring and summer and southward in autumn and winter (Ref. 244). Feeds on pelagic and bottom bony fishes, cephalopods, and small sharks and rays (Ref. 5578). Viviparous (Ref. 50449). Undoubtedly utilized for human consumption where it occurs (Ref. 244). Implicated in shark attacks on people (Ref. 9997).

Life cycle and mating behavior Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng

Viviparous, with a yolk-sac placenta. Litter contains 7 to 20 pups (Ref. 6871, 6390). Young born at 59 - 70 cm TL (Ref. 6390). Pupping may occur at any time of the year but there is a peak in births in summer (Ref. 6390). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | Các tài liệu tham khảo | Người điều phối : Compagno, Leonard J.V. | Người cộng tác

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

IUCN Red List Status (Ref. 130435)

Dễ bị tổn thương, xem Sách đỏ của IUCN (VU) (A2bd); Date assessed: 06 April 2020

CITES (Ref. 128078)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Traumatogenic (Ref. 4690)

Human uses

Các nghề cá: buôn bán nhỏ; cá để chơi: đúng

FAO(Các nghề cá: Sản xuất; publication : search) | FishSource | Biển chung quanh ta

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Estimates based on models

Preferred temperature (Ref. 115969): 11.6 - 23.8, mean 17.4 (based on 797 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00468 (0.00230 - 0.00950), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Mức dinh dưỡng (Ref. 69278): 4.5 ±0.0 se; based on diet studies.

Thích nghi nhanh (Ref. 120179): Rất thấp, thời gian nhân đôi của chủng quần tối thiểu là hơn 14 năm (K=0.04; tm=5-20; tmax=30; Fec=7).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (87 of 100).

Climate Vulnerability (Ref. 125649): High vulnerability (57 of 100).

Price category (Ref. 80766): High.

Carcharhinus brachyurus (Günther, 1870)