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The shark species "Nervous shark"

Photo
Unfortunately, there is not yet a photo of this shark in the database
Unfortunately, there is not yet a photo of this shark in the database
Range Map
North America South America Africa Australia Europe Asia Coming soon Coming soon
North America South America Africa Australia Europe Asia Coming soon Coming soon
Nervous shark

Rough area of distribution

Taxonomy
Kingdom:
Animals (Animalia)
Phylum:
Vertebrates (Chordata)
Class:
Cartilagenous fishes (Chondrichthyes)
Order:
Ground sharks (Carcharhiniformes)
Family:
Requiem sharks (Carcharhinidae)
Genus:
Carcharhinus
Names
Scientific:
Carcharhinus cautus
English:
Nervous shark
German:
Nervöser Hai
French:
Requin nerveux
Spanish:
Tiburón nervioso
Appearance
A typical requiem shark of moderate size. Snout bluntly rounded with horizontal oval eyes. Large and falcate first dorsal fin, with a narrow and pointed apex. Front origin over or slightly in front of pectorals free rear tips. Second dorsal fin is relatively high (3-4 % of total body length). Origin of second dorsal fin over origin of anal fin. No interdorsal ridge present.
Coloration
Greyish-brown or bronze on its back, white belly region. Dorsal, pectoral, and caudal fins have black margins. These black margins expand apically to black tips on caudal lobes and pectorals. A conspicuous white band may be present on the flanks.
Distribution
Eastern Indian Ocean and Western South Pacific: Australia (Queensland, Western Australia), Solomon Islands, Papua New Guinea.
Biology
A little known species found over shallow waters of continental and insular shelves. May swim into deeper water, as well.
Diet
Bony fishes, and to lesser extent, crustaceans and cephalopods.
Size
Maximum size about 150 cm, average size between 100 and 130 cm.
Reproduction
Viviparous, with yolksac placenta (gives birth to live young). Litter size between 1 and 5 pups. Gestation period 8 to 9 months. Size at birth between 35 and 40 cm.
Similar Species
Similar to Blacktip reef shark but no conspicuous black tips on the first dorsal fin and anal fin.
Vulnerability
Category: Least Concern (LC)
Criteria: -
Last evaluated: 2020
Trend: Stable




© IUCN Red List 2024. The IUCN Red List of Threatened Species: Version 2024-2.

Danger to Humans
Harmless.

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