Lemon shark (Negaprion brevirostris) fish species and information / pictures of Lemon shark - Negaprion brevirostris

Lemon shark (Negaprion brevirostris) fish species information

Scientific Name
Negaprion brevirostris

Common Name
Lemon shark

Biology
Occurs on continental and insular shelves, frequenting mangrove fringes, coral keys, docks, sand or coral mud bottoms, saline creeks, enclosed bays or sounds, and river mouths. May enter fresh water. Occasionally moves into the open ocean, near or at the surface, apparently for purposes of migration. May rest motionless on the bottom (Ref. 9710). May occur singly or in small groups. Feeds mainly on fish but also takes crustaceans and mollusks. Viviparous, with 4 to 17 young in a litter. Size at birth 60 to 65 cm. Has been involved in several attacks on people. Meat is utilized for human consumption, hides for leather, fins for shark-fin soup base, liver oil for vitamins, and carcasses for fish meal. Marketed fresh, dried-salted and frozen (Ref. 9987).

Classification

Classified By
Poey, 1868
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Requiem sharks (Carcharhinidae)

Distribution

Region
Western Atlantic
Distribution
Western Atlantic: New Jersey, USA to southern Brazil, including the Gulf of Mexico, the Bahamas, and the Caribbean; also in Gulf of Mexico (Ref. 26938). Northeast Atlantic: Senegal, C?te d'Ivoire and probably wide-ranging off West Africa, but this requires confirmation. Eastern Pacific: southern Baja California, Mexico and the Gulf of California to Ecuador.
Range
45°N - 39°S, 114°W - 0°

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
92 m
Zone
reef-associated
Environment
Marine; brackish; reef-associated; oceanodromous (Ref. 51243); depth range 0 - 92 m (Ref. 244)
Trophic Level
4.37 s.e. 0.78 Based on diet studies.
Occurs in Marine / Salt water
True
Occurs in Brackish water
True
Occurs in Fresh Water
False
Occurs on Reefs
True
Is kept in Aquariums
False

Physical Size and Genetics

Maximum Length
340 cm
Common Length
240 cm
Phylogenetic Diversity Index
PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: commercial; gamefish: yes
Vulnerability
Very high vulnerability (87 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (K=0.54(?); tm=12.7; tmax=25; Fec = 4-17; rmax = 0.012)
Threat To Humans
  Traumatogenic (Ref. 244)
IUCN Red List Status
  Near Threatened (NT)