
Brazilian Sharpnose Shark
Rhizoprionodon lalandii (Müller & Henle, 1839)
Names
| English | Brazilian Sharpnose Shark |
|---|---|
| Dutch | Braziliaanse scherpsnuithaai |
| Spanish | Cazón picudo brasileño |
| Chinese | 巴西斜锯牙鲨 |
| Scientific name | Rhizoprionodon lalandii (Müller & Henle, 1839) |
About this species
The Brazilian sharpnose shark (Rhizoprionodon lalandii) is a requiem shark of the family Carcharhinidae. It is found in the tropical waters of the western Atlantic Ocean between latitudes 13° N and 33° S, at depths between 3 and 70 m. It has been recorded in the following countries: Aruba, Brazil, Colombia, French Guiana, Guyana, Panama, Suriname, Trinidad and Tobago and Venezuela. It can also have traces of chemical compounds and it can reach a length of 77 cm. It is considered a vulnerable species in Brazil due to intensive fishing although it may actually classify at a higher level. The flesh is eaten for food but the fins are not used as they are too small. Other threats include water pollution from plastic litter and three specimens have been found with plastic collars on their head or gills. The shark feeds on teleostei and squid. Research showed the shark may be an important predator of demersal and pelagic prey.
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El cazón picudo brasileño (Rhizoprionodon lalandii) es un carcarriniforme de la familia Carcharhinidae que habita en las aguas tropicales del océano Atlántico occidental entre las latitudes 13º N y 33° S, a profundidades de entre 3 y 70 m. Su longitud máxima es de 77 cm.
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巴西斜锯牙鲨(学名:Rhizoprionodon lalandii),是软骨鱼纲真鲨目真鲨科斜锯牙鲨属一种,被IUCN列为易危保育类动物,分布于西大西洋巴拿马到巴西南部与乌拉圭海域,深度3至70米,本鱼体延长且粗壮,头部扁平,吻尖长,具有长的上唇沟和下唇沟,成鱼的牙齿不呈锯齿状或呈不规则锯齿状,成年雄鲨比成年雌鲨有更窄、更高、更弯曲的前外侧牙齿,总齿排数通常为25,背鳍2个,身体上部深灰色或灰褐色,下部浅色,胸边缘浅色,背部深色,体长可达80公分,栖息在沿海沙泥底质水域,属肉食性,以硬骨鱼、虾子及乌贼为食,胎生,雌鱼每胎可生产1至4尾幼鱼,可做为食用鱼。
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Classification
| Kingdom | Animalia |
|---|---|
| Phylum | Chordata |
| Class | Elasmobranchii |
| Order | Carcharhiniformes |
| Family | Carcharhinidae |
| Genus | Rhizoprionodon |


