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: Bythaelurus: bythos (Gr.), depths of the sea, referring to its deepwater habitat; ailouros (Gr.), cat, probably an allusion to the vernacular “catshark,” so named for its cat-like eyes. (See ETYFish); lutarius: Latin for “of the mud,” referring to its habitat on or just above muddy bottoms at 338-766 m. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 深海底的; 深度上下限 338 - 766 m (Ref. 5510). 深水域; 13°N - 29°S
Western Indian Ocean: off Mozambique (Ref. 5578) and Somalia.
西印度洋: 莫三比克外海 (參考文獻 5578) 與索馬利亞。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 30 - ? cm
Max length : 34.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 244); 39.0 cm TL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 臀棘: 0. A slender, dwarf catshark with a moderately long snout and short labial furrows; caudal fin without crest of enlarged denticles (Ref. 5578). Dull grey-brown, paler ventrally, with few poorly defined dorsal saddles that may be visible (Ref. 5510).
一個細長又矮小的貓鯊具有一個中等長度的吻與短的唇溝; 沒有增大細齒的冠的尾鰭.(參考文獻 5578) 暗灰褐色﹐腹側灰白的, 有些貧乏地定義可能是的背部的鞍狀斑看得見的.(參考文獻 5510)
Found on the continental slope on or just above muddy substrates (Ref. 5578). Feeds on cephalopods, small bony fishes, and crustaceans (Ref. 5578). Probably caught with bottom trawls (Ref. 30573).
棲息於大陸斜坡或其上的泥質底部了。 (參考文獻 5578) 吃頭足類動物，小的硬骨魚類與甲殼動物。 (參考文獻 5578) 可能用底拖網捕獲了。 (參考文獻 30573)
Ovoviviparous, with 2 pups per litter (Ref. 5510).西印度洋: 莫三比克外海 (參考文獻 5578) 與索馬利亞。
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)
人類使用
漁業: 沒有興趣
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Estimates based on models
Preferred temperature (Ref.
123201): 9.4 - 12.4, mean 11.4 °C (based on 17 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00176 - 0.00714), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.2 ±0.56 se; based on food items.
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 to moderate vulnerability (29 of 100).
