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Carcharhinus signatus (Poey, 1868)

Description

Dorsal spines (total): 0; Anal spines: 0. A slim shark with a very long, pointed snout, large eyes, and small jaws with oblique-cusped serrated upper teeth; dorsal fins low with elongated rear tips; interdorsal ridge present (Ref. 5578). Grey-brown above, white below; no conspicuous fin markings (Ref. 5578).

Common Names

  • Nathaj , Danish , Denmark
  • Nachthaai , Dutch , Netherlands
  • Night Shark , English , Cuba
  • Night shark , English , USA
  • Night shark , English , Uruguay
  • Night shark , English , Global
  • Shark , English , USA
  • Öö-hallhai , Estonian , Estonia
  • Requiem de nuit , French , France
  • Requin de nuit , French , France
  • Requin de nuit , French , Global
  • 美洲基齒鯊 , Mandarin Chinese , China
  • 美洲基齿鲨 , Mandarin Chinese , China
  • 長吻真鯊 , Mandarin Chinese , China
  • 长吻真鲨 , Mandarin Chinese , China
  • Tubarão-da-noite , Portuguese , Portugal
  • Cação-noturno , Portuguese (Latin) , Brazil
  • Cazón de arrecife , Spanish , Venezuela
  • Tiburón de noche , Spanish , Cuba
  • Tiburón de noche , Spanish , Spain
  • Tiburon de noche , Spanish , Spain
  • Tiburón marrón , Spanish , Uruguay
  • Tiburón nocturno , Spanish , Mexico
  • Tiburon nocturno , Spanish , Nicaragua
  • Tiburón nocturno , Spanish , Spain

    • Taxonomic Hierarchy

    Kingdom: Animalia

    Phylum: Chordata

    Class: Elasmobranchii

    Order: Carcharhiniformes

    Family: Carcharhinidae

    Genus: Carcharhinus

    Species: Carcharhinus signatus (Poey, 1868)

    Climate Zone

  • Subtropical

    • Location

    Biology

    Coastal and semi-oceanic species found on or along outer continental and insular shelves (Ref. 244). Found to depths of 40 m (Ref. 26938). Forms schools (Ref. 244). Nocturnal (Ref. 5578), and feeding mainly on small bony fishes and squid (Ref. 244). Viviparous (Ref. 50449). Off West Africa, recorded water parameters at 90 to 285 m, where it was caught includes: temperature = 11 to 16°C; salinity = 36 ppt; oxygen = 1.81 ml/l (Ref. 244). Not known to be dangerous to people (Ref. 244).

    Habitat

    benthopelagic