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真鲨科

真鯊科
化石时期:始新世至現今
鼬鯊
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 软骨鱼纲 Chondrichthyes
亚类: 鲨总目 Selachimorpha
目: 真鲨目 Carcharhiniformes
科: 真鯊科 Carcharhinidae
D. S. Jordan & Evermann, 1896

見內文

真鲨科學名:Carcharhinidae),又名白眼鲛科,是軟骨魚綱真鲨目的其中一

分類

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真鲨科下分 11 個屬,如下:

分布

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本科鲨鱼廣泛分布於溫帶、熱帶各大洋海域。

深度

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水深1至500公尺以上。

特徵

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本科魚類,體多細長,頭部平扁,向尾部逐漸側扁;尾鰭特別發達者,往往為全長之1/3,尾柄兩側有縱走稜脊。口寬廣、強度弧形彎曲;口角多少有唇溝。鰓裂中型,第四、第五鰓裂在胸鰭基底上方。鰓弧無鰓耙,亦無鰓狀構造。齒箭頭狀,僅有一尖頭,中央齒多直立,側齒多向口角側斜,邊緣光滑或有鋸齒。背鰭2枚,第一背鰭大型;第二背鰭與臀鰭小型,且互相對在。尾鰭短於全長之1/3,後端下方有缺刻。体长1至4公尺。

生態

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本科魚類一般生活於近海或大洋區,體積大,牙齒尖銳,攻擊性強,屬肉食性,以魚類軟體動物等為食。

經濟利用

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食用魚,紅燒或加工成魚漿魚丸,或醃製成沙魚煙。各鰭可做成魚翅,大型者肝富含油質,可製成魚肝油。小型者可做成魚粉。另本科有些種類生性兇猛、攻擊力旺盛,是危險生物。

参考文献

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外部链接

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真鲨科
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