Carcharhinus galapagensis (Snodgrass & Heller, 1905)

Galapagos shark
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Carcharhinus galapagensis
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分類 / Names 共通名の | 類義語 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

板鰓亜鋼(サメとエイ類) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Carcharhinus: Greek, karcharos = sharpen + Greek, rhinos = nose (Ref. 45335).

Environment: milieu / climate zone / depth range / distribution range 生態学

; 海 関連する礁; 深さの範囲 1 - 286 m (Ref. 58302), usually 30 - 180 m (Ref. 37816).   Tropical; 36°N - 34°S, 180°W - 180°E (Ref. 55181)

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | 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).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm ?, range 215 - 245 cm
Max length : 370 cm TL オス/雌雄の選別がない; (Ref. 1602); common length : 300 cm TL オス/雌雄の選別がない; (Ref. 9253); 最大公表体重: 85.5 kg (Ref. 40637); 最大記録サイズ: 24 年 (Ref. 31395)

簡単な記述 形態学 | 形態計測学

背面の脊椎 (合計): 0; 背鰭 (合計): 0; 肛門の骨 0; 臀鰭: 0. Low inter-dorsal ridge present (Ref.9997). Dark grey above, light below, fins plain or with slightly dusky tips (Ref. 9997).

生物学     用語集 (例 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). Aggressive and dangerous to people (Ref. 9997). Viviparous (Ref. 50449). 6 to 16 young of 57 to 80 cm are born per litter (Ref. 1602).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | | 生産力 | 幼生

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).

主な参考文献 Upload your references | 参考文献 | コーディネーター : Compagno, Leonard J.V. | 協力者

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)

IUCNのレッドリストの状況は (Ref. 120744)

  絶滅危惧に近い (NT) ; Date assessed: 30 April 2003

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Traumatogenic (Ref. 4690)





Human uses

水産業: 少数商業の
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共通名の
類義語
代謝
捕食動物
生態毒性
繁殖
成熟
放精
卵の集合体
生産力

卵の開発
参考文献
水産養殖
水産養殖の紹介
緊張
遺伝子の
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病気
行列
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画像
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シガテラ(食中毒の名前)
速度
泳ぐ 型式
カマ
Otoliths

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インターネットの情報源

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 15 - 28.2, mean 23.8 (based on 1899 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
栄養段階 (Ref. 69278):  4.2   ±0.4 se; Based on diet studies.
回復力 (Ref. 69278):  非常に低い, 14年以上の倍増期間の最小個体群 (Fec=4).
弱み (Ref. 59153):  Very high vulnerability (84 of 100) .
価格帯 (Ref. 80766):   Medium.