分類 / 名稱 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) > Hexanchiformes (Frill and cow sharks) 六鰓鯊目 (Frill and cow sharks) > Hexanchidae (Cow sharks) 六鰓鮫科 (Cow sharks)
Etymology: Hexanchus: hex (Gr.), six; anchus, etymology unclear, perhaps anchos (Gr.), choke or throttle, referring to how six gill openings of H. griseus extend down onto the throat (See ETYFish); vitulus: Latin for calf or bullock, i.e., a small cowshark, smaller than its fellow Atlantic congener, H. griseus (See ETYFish).
Etymology: Hexanchus: hex (Gr.), six; anchus, etymology unclear, perhaps anchos (Gr.), choke or throttle, referring to how six gill openings of H. griseus extend down onto the throat (See ETYFish); vitulus: Latin for calf or bullock, i.e., a small cowshark, smaller than its fellow Atlantic congener, H. griseus (See ETYFish).
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍 生態學
海洋 深海底的; 深度上下限 0 - 700 m (Ref. 125614). ; 46°N - 6°N, 98°W - 28°E
分布 領土 | FAO區域 | 生態系 | 發現紀錄 | 分布圖 | 簡介 | Faunafri
Atlantic Ocean: Gulf of Mexico, the Caribbean to Venezuela and Guyanas; Bay of Biscay, from France to Morocco and the Mediterranean.
初熟時的長度 / 大小 / 重量 / 年齡
成熟度: Lm 160.0, range 142 - 178 cm
Max length : 230 cm TL 雄魚/尚未辨別雌雄; (Ref. 124786); 178.0 cm TL (female); common length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217)
Max length : 230 cm TL 雄魚/尚未辨別雌雄; (Ref. 124786); 178.0 cm TL (female); common length : 120 cm TL 雄魚/尚未辨別雌雄; (Ref. 5217)
Found on continental and insular slopes. Feeds mainly on bony fishes and cephalopods, sometimes on crustaceans Viviparous, with 13 to 26 young in a litter. Size at birth measures to about 40-45 cm TL (Ref. 125614). It was reported that there is likely some stratification of the distribution by size, presumably with larger individuals present in deeper waters (mostly adult captured in the Bahamas at an average depth of 639.5 m) than the juveniles (< 350 m in Belize and northern Gulf of Mexico). Resource and habitat partitioning between juvenile and much larger adult bluntnose sixgill sharks has been suggested as predation avoidance (Ref. 117400).
生命週期和交配行為 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Viviparous, with number of young 13 in one litter. Length at birth about 40 to 45 cm.
主要參考資料
上傳您的推薦信 | 參考文獻 | 合作者 : Compagno, Leonard J.V. | 合作者
Daly-Engel, T.S., I.E. Baremore, R.D. Grubbs, S.J.B. Gulak, R.T. Graham and M.P. Enzenauer, 2018. Resurrection of the sixgill shark Hexanchus vitulus Springer & Waller, 1969 (Hexanchiformes, Hexanchidae), with comments on its distribution in the northwest Atlantic Ocean. Marine Biodiversity: [1-10]. (Ref. 117400)
CITES
Not Evaluated
對人類具威脅
(Ref. 247)
人類使用
FAO - Publication: search | FishSource |
更多資訊
解剖學
鰓區
腦部
耳石
鰓區
腦部
耳石
生理學
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
身體成分
營養素
耗氧量
游泳類型
游泳速度
視覺色素
魚聲
疾病與寄生蟲
毒性 (LC50s)
遺傳學
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
基因組
遺傳學
異種性
遺傳率
遺傳多樣性
工具
特別的報告
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網路資源
AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | Websites from users | 檢查 FishWatcher | CISTI | Catalog of Fishes: 屬, 種 | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GloBI | Google Books | Google Scholar | Google | IGFA World Record | 國家資料庫 | OneZoom | Open Tree of Life | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | TreeBase | 樹狀分類階層 | Wikipedia: 去, 搜尋 | World Records Freshwater Fishing | Zoobank | 動物學的記錄
基於模型的估計
系統發育多樣性指數 (參考文獻 82804): PD50 = 0.6641 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00096 - 0.00523), b=3.15 (2.95 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (參考文獻 69278): 4.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (參考文獻 120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).