This page is sponsored by
FishBase Consortium Member

Carcharhinus amblyrhynchos (Bleeker, 1856)

Blacktail reef shark
Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Carcharhinus amblyrhynchos   AquaMaps   Data sources: GBIF OBIS
Upload your photos and videos
Pictures | Videos | Stamps, Coins Misc. | Google image

Philippines country information

Common names: Pating
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Probably reported (in part) as Carcharias menisorrah from Manila Bay (Ref. 288) and Cebu (Ref. 280). Collected from Luzon Point (USNM 151232, female, 62.1 cm TL and male, 67 cm TL) (Ref. 288). Observed during dives at Tubbataha Reef, central Sulu Sea in April 2000 (Ref. 47737). Recorded from Lanuza Bay, Surigao del Sur (Ref. 104756) and Sulu-Celebes Sea (Ref. 244). Also Ref. 9997, 6871, 26842, 53416, 121724. Occurrence: Manila Bay; Cebu; Lanuza Bay, Surigao del Sur; Tubbataha Reef, central Sulu Sea.
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Alava, M.N.R., J.P.A. Gaudiano, J.A. Utzurrum, E.E.C. Capuli, M.T.R. Aquino, M.M.A. Luchavez-Maypa and M.D. Santos, 2014
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (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);  amblyrhynchos: In honor of British zoologist John Francis George Wheeler (1900-1979), former Director of the East African Marine Fisheries Research Organization, whose 1953 account of this shark, as C. amblyrhynchos, is the first definitive record of this species [treated as a junior synonym of C. amblyrhynchos by some workers]. (See ETYFish).
  More on author: Bleeker.

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

Marine; reef-associated; oceanodromous (Ref. 51243); depth range 0 - 1000 m (Ref. 55178), usually 0 - 280 m (Ref. 6871).   Tropical; 29°N - 35°S, 33°E - 151°W (Ref. 55178)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific to Central Pacific: Madagascar and the Mauritius-Seychelles area to Tuamoto Archipelago; north to southern China; south to northern Australia.

Length at first maturity / Size / Weight / Age

Maturity: Lm 128.0, range 96 - 142 cm
Max length : 255 cm TL male/unsexed; (Ref. 2334); 172.0 cm TL (female); max. published weight: 33.7 kg (Ref. 4699); max. reported age: 25 years (Ref. 37816)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Dark grey or bronze-grey above, white below; caudal fin with a conspicuous wide black posterior margin; undersides of pectoral and pelvic fins with black tips and posterior margins, but fins otherwise not conspicuously black or white-tipped except for white-tipped first dorsal in some individuals (Ref. 9997).

Biology     Glossary (e.g. epibenthic)

Occurs on continental and insular shelves and oceanic waters adjacent to them (Ref. 244). Common on coral reefs, often in deeper areas near drop-offs to the open sea, in atoll passes, and in shallow lagoons adjacent to areas of strong currents (Ref. 244). Coastal-pelagic near the bottom, near drop-offs at 1-275 m (Ref. 58302). Forms daytime schools or aggregations in favored areas (Ref. 244). Although active during the day, it is more active nocturnally (Ref. 244). Viviparous, with 1-6 pups (Ref. 37816). Feeds on reef fishes, squids, octopi, crabs, lobsters and shrimps (Ref. 244, 5578). Tends to be aggressive under baited conditions (Ref. 6871) and readily enters into a frenzy feeding pattern, at which time it may become quite dangerous. Repeatedly incriminated in human attacks. Utilized for human consumption, fishmeal, and other shark products. Minimum depth from Ref. 6871. Maximum length of female taken from Ref. 5213.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Viviparous, placental (Ref. 50449). 1-6 pups in a litter (Ref. 244). Gestation period about 12 months (Ref. 244). Size at birth 50 to 60 cm (Ref. 26346, 37816) or 75 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | References | Coordinator : Compagno, Leonard J.V. | Collaborators

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. 123251)

  Endangered (EN) (A2bcd); Date assessed: 03 July 2020

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Traumatogenic (Ref. 4716)

Human uses

Fisheries: minor commercial; gamefish: yes
FAO(Publication : search) | FishSource | Sea Around Us

More information

FAO areas
Food items
Food consumption
Common names
Egg development
Larval dynamics
Aquaculture profile
Allele frequencies
Mass conversion
Stamps, Coins Misc.
Swim. type
Gill area


Special reports

Download XML

Internet sources

Estimates based on models

Preferred temperature (Ref. 115969): 17.5 - 29, mean 27.5 (based on 4022 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00297 - 0.00846), b=3.13 (2.99 - 3.27), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.1   ±0.5 se; based on diet studies.
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (tm=7; tmax=25; K=0.05-0.86; Fec=1-6).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100).
Price category (Ref. 80766):   Medium.