分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Apristurus: a-, Latin privative, i.e., without; pristis, from pristes (Gr.), sawyer (but here meaning saw); oura (Gr.), tail, referring to absence of saw-toothed crest of enlarged dermal denticles along upper edge of caudal fin as found in the closely related Pristiurus (=Galeus). (See ETYFish); platyrhynchus: platys (Gr.), wide; rhynchus (L.), snout, referring to its shorter, wider snout compared with A. macrorhynchus. (See ETYFish).
More on author: Tanaka.
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海区的; 深度上下限 759 - ? m (Ref. 58018). 深水域; 35°N - 1°N
Western Pacific: Philippines, South and East China seas; northward to the Suruga Bay, Japan.
西太平洋: 菲律賓, 東南中國海; 向北至日本駿河灣。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 80.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 244); 63.0 cm TL (female)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. Diagnostic features include the very short abdomen, with interspace between pectoral and pelvic fins base shorter than 3/5 of anal fin base length; pectoral fin tip reaching beyond the midpoint between pectoral and pelvic fins; first dorsal fin smaller in area than the second dorsal; posterior end base (axil) of second dorsal clearly in front of anal fin axil; low anal fin with a long base. Egg capsule very slender; without tendrils, conical posterior end. Claspers without hooks, with posterior margin of exorhipidion forming a free lobe (Ref. 37959). Black, brown or grey (Ref. 11146), without conspicuous markings on fins (Ref. 244).
鉴别的特徵包括非常短的腹部, 藉由胸鳍之间的间隙与腹鳍基底短于臀鳍基底长度的 3/5; 超过在胸鳍与腹鳍之间的中点的胸鳍顶端; 第一背鳍比较小的在区域中超过第二个背部的; 清楚地在臀鳍前面叶腋的第二背鳍的后端基底 (叶腋); 低的臀鳍有一个长的基底。 卵鞘非常细长的; 没有卷须，锥形后端。 没有钩的扣紧物, 藉由形成一个分离的叶的 exorhipidion 的后缘.(参考文献 37959) 黑色的，褐色或灰色的 (参考文献 11146), 没有显着的斑纹在鳍上.(参考文献 244)
Found on the continental slopes. Poorly known. Oviparous, probably one egg per oviduct laid at a time. Not utilized at present.
栖息于大陆斜坡了。 知道的很少。 卵生的, 可能每个输卵管只有一个卵一次。 目前未被人类利用。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).西太平洋: 菲律賓, 東南中國海; 向北至日本駿河灣。
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)
人类利用
渔业: 没有兴趣
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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Estimates based on models
Preferred temperature (Ref.
123201): 3 - 10.1, mean 3.4 °C (based on 121 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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).
营养阶层 (Ref.
69278): 4.0 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec assumed to be <10).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (52 of 100).
