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Blacknose shark (Carcharhinus acronotus) fish species and information / pictures of Blacknose shark - Carcharhinus acronotus

Blacknose shark (Carcharhinus acronotus) fish species information

Scientific Name
Carcharhinus acronotus

Common Name
Blacknose shark

Biology
Found on continental and insular shelves, mainly over sandy, shell, and coral bottoms. Feeds on small fishes, including pinfish (Sparidae) and porcupine fish. Preyed on by larger sharks. Viviparous (with a yolk-sac placenta), with 3 to 6 young per litter. Performs a 'hunch' display, with back arched, caudal lowered and head raised, as a possible threat display when confronted by divers. Utilized dried salted for human consumption.

Classification

Classified By
Poey, 1860
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Requiem sharks (Carcharhinidae)

Distribution

Region
Western Atlantic
Distribution
Western Atlantic: North Carolina, USA to southern Brazil and Uruguay (Ref. 58839), including the Gulf of Mexico and the Caribbean.
Range
40°N - 37°S, 100°W - 33°W

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
Unknown m
Depth To - meters
Unknown m
Zone
reef-associated
Environment
Marine; reef-associated, usually 9 - ? m (Ref. 55176)
Trophic Level
4.22 s.e. 0.70 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
False
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
200 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: minor commercial; gamefish: yes
Vulnerability
High to very high vulnerability (70 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (K=0.12; tm=2; tmax=4.5; Fec=4)
Threat To Humans
  Harmless (Ref. 244)
IUCN Red List Status
  Near Threatened (NT)