分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Carcharhiniformes (Ground sharks)
真鯊目 (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
生態學
海洋 礁區魚類; 深度上下限 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816). 熱帶; 36°N - 34°S, 180°W - 180°E (Ref. 55181)
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).
環熱帶偏愛海洋中島嶼周圍水域。 東大西洋: 包括聖保羅岩礁 (參考文獻。 13121,52289). 西印度洋: 包括沃爾特的淺灘，馬達加斯加南方。 西太平洋: 包括米德爾頓與伊莉莎白礁。 東太平洋: 加拉巴哥島.(參考文獻 58896)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 230.0, range 215 - 245 cm
Max length : 370 cm TL 雄魚/尚未辨別雌雄; (Ref. 1602); common length : 300 cm TL 雄魚/尚未辨別雌雄; (Ref. 9253); 最大體重: 85.5 kg (Ref. 40637); 最大年齡: 24 年 (Ref. 31395)
背棘 (總數): 0; 背的軟條 (總數): 0; 臀棘 0; 臀鰭軟條: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).
低的在背部之間的脊呈現。 (參考文獻 9997) 背面暗灰色的﹐腹面淺色的, 鰭平原或有略微暗色的尖端.(參考文獻 9997)
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).
一種常見的但是當外海鄰近島嶼棚或大陸棚或在上面的時候，棲息地受限的熱帶鯊魚發現近岸湧出.(參考文獻 244) 偏愛底部為珊瑚與岩石的清澈水域。 (參考文獻 244) 雖然一個海岸的大洋性魚種, 它能夠在島 (至少 50 公里) 之間的開放性海域的橫渡相當長的距離.(參考文獻 244) 稚魚侷限於較淺的水域了, 在 25 公尺以內中 (參考文獻 244; 37816)。 發現於表面的群集了。 (參考文獻 244) 傾向在底部附近的吃但是可能採取來自表面的誘餌.(參考文獻 5485) 主要吃底層魚類，也捕食烏賊與章魚。 (參考文獻 244) 在加拉巴哥島，它捕食海獅與海洋的鬣蜥蜴。 (參考文獻 28023) 侵略性與對人類有危險性.(參考文獻 9997) 胎生的.(參考文獻 50449) 生產6 到 16隻, 57 到 80 公分的幼魚每胎。 (參考文獻 1602)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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).環熱帶偏愛海洋中島嶼周圍水域。 東大西洋: 包括聖保羅岩礁 (參考文獻。 13121,52289). 西印度洋: 包括沃爾特的淺灘，馬達加斯加南方。 西太平洋: 包括米德爾頓與伊莉莎白礁。 東太平洋: 加拉巴哥島.(參考文獻 58896)
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 07 December 2018
人類使用
漁業: 低經濟
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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): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00479 (0.00221 - 0.01036), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (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.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=4).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (73 of 100).
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);
