Negaprion acutidens (Rüppell, 1837)
Sicklefin lemon shark
photo by Randall, J.E.

Family:  Carcharhinidae (Requiem sharks)
Max. size:  380 cm TL (male/unsexed)
Environment:  reef-associated; depth range 0 - 92 m
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).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 0-0; Anal spines: 0-0; Anal soft rays: 0-0. A large, stocky, yellowish shark with a broad, blunt snout, narrow, smooth-cusped teeth in both jaws, and equal-sized dorsal fins (Ref. 5578). Yellowish brown above, paler below (Ref. 9997). With two nearly equally large dorsal fins (Ref. 37816).
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).
IUCN Red List Status: Endangered (EN); Date assessed: 30 April 2003 (A2abcd+3bcd+4abcd) Ref. (120744)
Threat to humans:  traumatogenic
Country info:   
 

Entered by: Carpenter, Kent E. - 15.06.92
Modified by: Casal, Christine Marie V. - 04.04.18
Checked by: Luna, Susan M. - 06.04.94

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