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Carcharhinus galapagensis, Galapagos shark : fisheries, gamefish

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Carcharhinus galapagensis (Snodgrass & Heller, 1905)

Galapagos 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 galapagensis   AquaMaps   Data sources: GBIF OBIS
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Image of Carcharhinus galapagensis (Galapagos shark)
Carcharhinus galapagensis
Picture by Cox, C.D.

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); galapagensis: -ensis, Latin suffix denoting place: Galapagos Islands, type locality (See ETYFish).

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

海洋 礁区鱼类; 深度上下限 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816). 热带; 36°N - 34°S, 180°W - 180°E (Ref. 55181)

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

Circumtropical with a preference for waters around oceanic islands. Eastern Atlantic: including St. Paul's Rocks (Refs. 13121, 52289). Western Indian Ocean: including Walter's Shoal, south of Madagascar. Western Pacific: including Middleton and Elizabeth Reefs. Eastern Pacific: Galápagos (Ref. 58896).
环热带偏爱海洋中岛屿周围水域。 东大西洋: 包括圣保罗岩礁 (参考文献。 13121,52289). 西印度洋: 包括沃尔特的浅滩,马达加斯加南方。 西太平洋: 包括米德尔顿与伊丽莎白礁。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm 230.0, range 215 - 245 cm
Max length : 370 cm TL 雄鱼/尚未辨别雌雄; (Ref. 1602); common length : 300 cm TL 雄鱼/尚未辨别雌雄; (Ref. 9253); 最大体重: 85.5 kg (Ref. 40637); 最大年龄: 24 年 (Ref. 31395)

简单描述 检索表 | 型态特徵 | 形态测量图

背棘 (总数) : 0; 臀棘: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).
低的在背部之间的脊呈现。 (参考文献 9997) 背面暗灰色的,腹面浅色的, 鳍平原或有略微暗色的尖端.(参考文献 9997)

生物学特性     字汇 (例如 epibenthic)

A common but habitat-limited tropical shark found close inshore to well as offshore near or on insular or continental shelves (Ref. 244). Prefers clear water with coral and rocky bottoms (Ref. 244). Although a coastal pelagic species, it is capable of crossing considerable distances of open ocean between islands (at least 50 km) (Ref. 244). Juveniles restricted to shallower water, in 25 m or less (Ref. 244; 37816). Found in superficial aggregations (Ref. 244). Tends to feed near the bottom but may take bait from the surface (Ref. 5485). Feeds mainly on bottom fishes, also squid and octopi (Ref. 244). In the Galapagos Is. it preys on sea lions and marine iguanas (Ref. 28023). Inquisitive and sometimes aggressive, displaying a 'hunch' position ( arched back, raised head and lowered caudal and pectoral fins, while twisting and rolling) near divers that may be followed by biting (Ref. 58085). Viviparous (Ref. 50449). 6 to 16 young of 57 to 80 cm are born per litter (Ref. 1602).

一种常见的但是当外海邻近岛屿棚或大陆架或在上面的时候,栖息地受限的热带鲨鱼发现近岸涌出.(参考文献 244) 偏爱底部为珊瑚与岩石的清澈水域。 (参考文献 244) 虽然一个海岸的大洋性鱼种, 它能够在岛 (至少 50 公里) 之间的开放性海域的横渡相当长的距离.(参考文献 244) 稚鱼局限于较浅的水域了, 在 25 公尺以内中 (参考文献 244; 37816)。 发现于表面的群集了。 (参考文献 244) 倾向在底部附近的吃但是可能采取来自表面的诱饵.(参考文献 5485) 主要吃底层鱼类,也捕食乌贼与章鱼。 (参考文献 244) 在加拉巴哥岛,它捕食海狮与海洋的鬣蜥蜴。 (参考文献 28023) 侵略性与对人类有危险性.(参考文献 9997) 胎生的.(参考文献 50449) 生产6 到 16只, 57 到 80 公分的幼鱼每胎。 (参考文献 1602)

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

Viviparous, with a yolk sac placenta (Ref. 244). 6 to 16 young born at 60-80 cm (Ref. 26346). Distinct pairing with embrace (Ref. 205).环热带偏爱海洋中岛屿周围水域。 东大西洋: 包括圣保罗岩礁 (参考文献。 13121,52289). 西印度洋: 包括沃尔特的浅滩,马达加斯加南方。 西太平洋: 包括米德尔顿与伊丽莎白礁。

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)

  最不相关 (LC) ; Date assessed: 07 December 2018

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  引起创伤的 (Ref. 4690)





人类利用

渔业: 低经济; 游钓鱼种: 是的
FAO - Publication: search | FishSource | 周边海洋

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Estimates based on models

Preferred temperature (Ref. 123201): 15 - 28.2, mean 23.8 °C (based on 1899 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.2   ±0.4 se; based on diet studies.
Generation time: 8.8 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
回复力 (Ref. 120179):  非常低的, 最小族群倍增时间超过14 年 (Fec=4).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (73 of 100).
价格分类 (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 3.97 [0.89, 21.70] mg/100g; Iron = 0.329 [0.083, 0.941] mg/100g; Protein = 22.1 [19.2, 24.4] %; Omega3 = 0.0987 [, ] g/100g; Selenium = 46.8 [14.0, 139.5] μg/100g; VitaminA = 39.1 [13.8, 112.6] μg/100g; Zinc = 0.504 [0.236, 0.958] mg/100g (wet weight);


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