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) >
Pentanchidae (Deepwater catsharks)
Etymology: Cephalurus: cephalus, from kephale (Gr.), head, referring to its expanded, flattened and rounded head; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes. (See ETYFish); cephalus: From kephale (Gr.), head, allusion not explained, probably referring to its expanded, flattened and rounded head, “much wider” and with larger pores compared with the similar Parmaturus xaniurus, its presumed congener at the time. (See ETYFish).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 155 - 927 m (Ref. 244). 深水域; 32°N - 15°S
Eastern Central Pacific: southern Baja California, Mexico and Gulf of California. Cephalurus specimens from Panama, Peru and Chile differ from Cephalurus cephalus and may represent one or more new species.
中太平洋東部: 墨西哥的下加利福尼亞南部與加州灣。 來自巴拿馬，祕魯與智利的 Cephalurus 標本不同於 圓頭鯊〔Cephalurus cephalus〕 而且可能是一個或多個新種。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 19 - ? cm
Max length : 28.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244); common length : 24.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244)
Found on the upper continental slope and outermost shelf. The expanded branchial region of this shark suggests that they are adapted to bottom areas with low dissolved oxygen levels. With little information available, reproductive mode could either be ovoviviparous (Ref. 244, 53776) or oviparous, paired eggs are laid (Ref. 50449).
棲息於大陸坡上層與最外的大陸棚了。 這一隻鯊魚的擴大的鰓部顯示出他們用低容氧量適應底部區域。 藉由少的資訊有用又生殖的模態可以或是卵胎生的 (參考文獻 244,53776) 或者卵生的, 成對的卵生產.(參考文獻 50449)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449). Other sources describe ovoviviparity as an alternative reproductive mode (Ref. 244, 53776).中太平洋東部: 墨西哥的下加利福尼亞南部與加州灣。 來自巴拿馬，祕魯與智利的 Cephalurus 標本不同於 圓頭鯊〔Cephalurus cephalus〕 而且可能是一個或多個新種。
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: 06 February 2019
人類使用
漁業: 沒有興趣
更多資訊
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 7.9 - 14.8, mean 9.5 °C (based on 31 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00398 (0.00236 - 0.00672), b=3.06 (2.91 - 3.21), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 3.7 ±0.4 se; based on diet studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec=2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
