A coastal and freshwater shark inhabiting shallow waters especially in bays, estuaries, rivers, and lakes (Ref. 244). It readily penetrates far up rivers and hypersaline bays and littoral lagoons (Ref. 9997, 44894, 81283). Capable of covering great distances (up to 180 kilometers in 24 hours), moving between fresh and brackish water at random (Ref. 44894). Adults often found near estuaries and freshwater inflows to the sea; young enter rivers and may be found hundreds of km from the sea (Ref. 4967, 44894, 58304). Feeds on bony fishes, other sharks, rays, mantis shrimps, crabs, squid, sea snails, sea urchins, mammalian carrion, sea turtles, and occasionally garbage (Ref. 244, 5578, 44894). Viviparous (Ref. 50449). Gives birth to litters of up to 13 young (Ref. 26938, 44894). Size at birth is 56-81 cm TL (Ref. 81623). Sexual maturity is attained after 10-15 years (at a length between 160-200 centimeters) (Ref. 44894). Though not commercially important, this species is a good food fish (Ref. 12484). Utilized fresh, fresh-frozen or smoked for human consumption, fins for soup, hide for leather, liver for oil, and carcass for fishmeal (Ref. 244). Very hardy and lives well in captivity (Ref. 244). This large shark is potentially dangerous to man (Ref. 81283), probably the most dangerous species of tropical shark (Ref. 244), and it is repeatedly implicated in attacks on humans (Ref. 4967, 44894); attacks in fresh water are rare (Ref. 44894).
一隻海岸與淡水的鯊魚在海灣,河口,河與湖中居住於淺水域尤其。 輕易地深入在河川最上游與高鹽度海灣。 (參考文獻 9997) 成魚時常在河口與淡水水域流入海洋的附近發現。 幼魚進入河而且可能被發現於數以百計公里遠距離海洋。 (參考文獻 4967) 吃硬骨魚類,其他的鯊魚,魟,螳螂蝦,螃蟹,烏賊,海洋蝸牛,海膽,哺乳動物腐肉,海龜, 與偶然地垃圾.(參考文獻 244,5578) 非常強韌與生存得很好在繁殖場, 熱帶鯊魚 (參考文獻 244) 的可能最危險種, 它是關係到重複的對人類的攻擊.(參考文獻 4967) 胎生的.(參考文獻 50449) 每胎生產向上到 13個幼魚。 (參考文獻 26938) 生鮮使用, 生鮮冷凍或煙燻了供人類消費 , 鰭用於湯, 隱藏用做皮革,肝臟用於製造魚肝油與殘骸用於魚粉.(參考文獻 244)
Preferred temperature (Ref.
115969): 23.2 - 29, mean 27.5 (based on 2930 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00501 (0.00405 - 0.00620), b=3.06 (3.02 - 3.10), in cm Total Length, based on LWR estimates for this species (Ref.
93245).
營養階層 (Ref.
69278): 4.3 ±0.5 se; based on diet studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (K=0.04-0.15; tm=6-21; tmax=32; Fec=1-13).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (82 of 100).