Carcharhinus signatus, Night shark : fisheries, gamefish

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相关物种

Carcharhinus signatus (Poey, 1868)

Night shark

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Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Carcharhinus signatus AquaMaps Data sources: GBIF OBIS

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Image of Carcharhinus signatus (Night shark)

Carcharhinus signatus
Picture by NOAA\NMFS\Mississippi Laboratory

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) 白眼鮫目 (Ground sharks) > Carcharhinidae (Requiem sharks) 白眼鮫科 (Requiem sharks)
Etymology: Carcharhinus: karcharos (Gr.), sharp or jagged; rhinus, an ancient name for sharks, from rhine (Gr.), rasp, both words alluding to a shark's jagged, rasp-like skin (See ETYFish); signatus: Latin for marked, probably referring to indentation on outer margins of upper teeth (described from jaws only) (See ETYFish).
More on author: Poey.

Environment: milieu / climate zone / depth range / distribution range 生态学

海洋底中水层性; 深度上下限 0 - 600 m (Ref. 244), usually 50 - 100 m (Ref. 244). 亞熱帶的; 11°C - 16°C (Ref. 244); 39°N - 43°S, 98°W - 15°E (Ref. 55190)

分布国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Western Atlantic: Delaware to Florida (USA), Bahamas, and Cuba; southern Brazil, Argentina (Ref. 244). Eastern Atlantic: Senegal to Côte d'Ivoire, Ghana to Cameroon, Democratic Republic of the Congo, Angola, off northern Namibia (Ref. 244, 5578).
西大西洋: 德拉瓦州到佛羅里達 (美國) ，巴哈馬與古巴; 巴西南部，阿根廷。東大西洋: 塞內加爾到象牙海岸，迦納到喀麥隆，剛果，安哥拉, 外海的那米比亞北部.(參考文獻 5578)

Length at first maturity / 大小 / 重量 / 年龄

Maturity: L_m 202.5, range 150 - 205 cm
Max length : 280 cm TL 雄鱼/尚未辨别雌雄; (Ref. 244); common length : 200 cm TL 雄鱼/尚未辨别雌雄; (Ref. 26999); 最大体重: 76.7 kg (Ref. 40637)

简单描述检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 臀棘: 0. A slim shark with a very long, pointed snout, large eyes, and small jaws with oblique-cusped serrated upper teeth; dorsal fins low with elongated rear tips; interdorsal ridge present (Ref. 5578). Grey-brown above, white below; no conspicuous fin markings (Ref. 5578).
一瘦的鲨鱼有一个非常长的，尖的吻，和大的眼, 与小的颌部有斜尖的锯齿状的上颚齿; 背鳍低的具有细长的后顶端; 间背脊呈现。 (参考文献 5578) 背面灰褐色的, 腹面白色的; 没有显着的鳍斑纹.(参考文献 5578)

Coastal and semi-oceanic species found on or along outer continental and insular shelves (Ref. 244). Found to depths of 40 m (Ref. 26938). Forms schools (Ref. 244). Nocturnal (Ref. 5578), and feeding mainly on small bony fishes and squid (Ref. 244). Viviparous (Ref. 50449). Off West Africa, recorded water parameters at 90 to 285 m, where it was caught includes: temperature = 11 to 16°C; salinity = 36 ppt; oxygen = 1.81 ml/l (Ref. 244). Not known to be dangerous to people (Ref. 244).

海岸的与半大洋性鱼种发现或者之上沿着大陆架和岛屿棚外缘.(参考文献 244) 发现到深度 40 公尺。 (参考文献 26938) 形成鱼群。 (参考文献 244) 夜行的 (参考文献 5578), 而且主要捕食小的硬骨鱼类与乌贼.(参考文献 244) 胎生的.(参考文献 50449) 非洲西部外,在 90 到 285 公尺记录了水参数, 在哪里它被捕捉包括: 温度 =11 到 16 °C; 盐度 =36 ppt; 氧 =1.81 毫升/l.(参考文献 244) 不知道是否对人有危险.(参考文献 244)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼

Viviparous, placental (Ref. 50449), with 4 to 12 young in a litter (Ref. 244). Size at birth about 60 cm (Ref. 244). Distinct pairing with embrace (Ref. 205).西大西洋: 德拉瓦州到佛羅里達 (美國) ，巴哈馬與古巴; 巴西南部，阿根廷。東大西洋: 塞內加爾到象牙海岸，迦納到喀麥隆，剛果，安哥拉, 外海的那米比亞北部.(參考文獻 5578)

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)

濒危 (EN) (A2bd); Date assessed: 21 June 2019

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

无害处的 (Ref. 244)

人类利用

渔业: 商业性; 游钓鱼种: 是的

FAO - 渔业: 物种外形; Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 15.8 - 27, mean 21.7 °C (based on 178 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00468 (0.00303 - 0.00722), b=3.07 (2.95 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

营养阶层 (Ref. 69278): 4.6 ±0.0 se; based on diet studies.

回复力 (Ref. 120179): 非常低的, 最小族群倍增时间超过14 年 (tm=8-10; Fec=4; Tmax=17; K=0.12).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (73 of 100).

价格分类 (Ref. 80766): Medium.

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