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Sicklefin lemon shark (Negaprion acutidens) fish species and information / pictures of Sicklefin lemon shark - Negaprion acutidens
Sicklefin lemon shark (Negaprion acutidens) fish species information
Scientific Name
Negaprion acutidens
Common Name
Sicklefin lemon shark
Biology
Found on continental and insular shelves and terraces (Ref. 244). Common on coral reefs (Ref. 5578) and in shallow, sandy lagoons and turbid, mangrove swamps (Ref. 6871). Feeds on smaller sharks, stingrays and on benthic bony fishes (Ref. 5578). Viviparous (Ref. 50449). Dangerous if provoked (Ref. 244). 1 to 11 of 45 cm young are born per litter (Ref. 1602). Meat is utilized fresh and dried salted for human consumption, fins for shark-fin soup base, and liver oil for vitamins (Ref. 244).
Classification
Classified By
R?ppell, 1837
Class
Sharks and Rays (Elasmobranchii)
Order
Ground sharks (Carcharhiniformes)
Family
Requiem sharks (Carcharhinidae)
Distribution
Region
Indo-Pacific
Distribution
Indo-Pacific: Red Sea and South Africa (including Mauritius, Seychelles, Madagascar) to Philippines, north to Viet Nam, south to Australia. Also from Palau, Marshall Islands, and Tahiti. Recorded from Taiwan (Ref. 4868).
Range
30°N - 32°S, 32°E - 140°W
Environment
Climate
Tropical
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; depth range 0 - 92 m (Ref. 244)
Trophic Level
4.13 s.e. 0.67 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
380
cm
Common Length
Unknown
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
Vulnerability
Very high vulnerability (78 of 100)
Resilience
Very Low, minimum population doubling time more than 14 years (Fec=1)
Threat To Humans
Traumatogenic (Ref. 244)
IUCN Red List Status
Vulnerable (VU) (A2abcd+3bcd+4abcd)