Gollum attenuatus (Garrick, 1954)

Slender smooth-hound
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Gollum attenuatus   AquaMaps   Data sources: GBIF OBIS
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Image of Gollum attenuatus (Slender smooth-hound)
Gollum attenuatus
Female picture by Duffy, C.

分类 / Names 俗名 | 同种异名 | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Carcharhiniformes (Ground sharks) > Pseudotriakidae (False catsharks)
Etymology: Gollum: Taken from a personnage of the J.R.R.Tolkien works "The Lord of the rings".

Environment: milieu / climate zone / depth range / distribution range 生态学

; 海洋 深海底的; 深度上下限 120 - 660 m (Ref. 26346), usually 400 - 600 m (Ref. 13566).   深水域; - 46°S

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

Southwest Pacific: occurs off New Zealand and on rises between New Zealand and the east coast of Australia, New Caledonia, and Fiji just south of the Western Central Pacific. Placement in Proscyllidae provisional, probably will be relocated in Pseudotriakidae.
西南太平洋: 出現外海的紐西蘭與在紐西蘭與澳洲東岸,新加勒多尼亞與斐濟之間的隆起上正好向南方中西太平洋。 放在 Proscyllidae 中暫時的, 可能意志被重新放在 Pseudotriakidae 中。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?, range 70 - ? cm
Max length : 107 cm TL 雄鱼/尚未辨别雌雄; (Ref. 6893); 109.2 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. Caudal fin without a rippled dorsal margin and ventral lobe but with a strong subterminal notch; vertebral axis of caudal fin little raised above body axis (Ref. 13566).
尾鳍没有波浪状的上缘与腹叶但是有一个强的接近端位的凹槽; 尾鳍的椎骨轴在体轴上方稍微向上。 (参考文献 13566)

生物学特性     字汇 (例如 epibenthic)

An uncommon to common deep-water bottom-dwelling shark found on the outermost continental shelf and upper slope of New Zealand and on adjacent seamounts and submarine banks (Ref. 13566). Seems adapted to waters of about 10°C and 34.8 ppt salinity (Ref. 6893). Feeds on a wide variety of fishes, cephalopods, and other invertebrates (Ref. 13566). Probably in schools (Ref. 13566). Females grow slightly larger than males (Ref. 13566). Ovoviviparous, embryos feeding on yolk sac and other ova produced by the mother, uterine milk is consumed additionally (Ref. 50449). Two young are born per litter (Ref. 13566).

一稀有的对发现于最外的大陆棚与纽西兰的上层斜坡的普遍深海底栖鲨鱼而且在毗连的海洋山脊与海底上岸堤.(参考文献 13566) 似乎适应大约 10 °C 与 34.8个 ppt 盐度的水域。 (参考文献 6893) 吃各式各样的鱼,头足类动物与其他的无脊椎动物。 (参考文献 13566) 可能成群.(参考文献 13566) 雌性长的稍微大于雄性。 (参考文献 13566) 卵胎生的, 胚胎吃卵黄囊与其他的卵产生于母亲了, 子宫分泌的乳汁附加地被消费.(参考文献 50449) 二个幼鱼出生每胎。 (参考文獻 13566)

Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | | 孕卵数 | 仔鱼

Exhibit ovoviparity (aplacental viviparity), embryos feed on yolk and ova, also consume uterine milk (Ref. 50449). With usually 2 young per litter (Ref. 13566). Fetuses eat unfertilized eggs and store consumed yolk in their yolk sacs (Ref. 13566). Distinct pairing with embrace (Ref. 205).西南太平洋: 出現外海的紐西蘭與在紐西蘭與澳洲東岸,新加勒多尼亞與斐濟之間的隆起上正好向南方中西太平洋。 放在 Proscyllidae 中暫時的, 可能意志被重新放在 Pseudotriakidae 中。

主要参考文献 Upload your references | 参考文献 | 合作者 | 合作者

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)

世界自然保护联盟红皮书 (Ref. 120744)

  最不相关 (LC) ; Date assessed: 21 June 2017

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的 (Ref. 13566)





人类利用

渔业: 没有兴趣
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网络资源

Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | 树状分类阶层 | Wikipedia(转至, 搜寻) | World Records Freshwater Fishing | 动物学的记录

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7.9 - 10.1, mean 9.5 (based on 24 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.8125   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00138 - 0.00958), b=3.12 (2.90 - 3.34), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.2   ±0.4 se; Based on diet studies.
回复力 (Ref. 69278):  非常低的, 最小族群倍增时间超过14 年 (Fec=2).
脆弱性 (Ref. 59153):  High vulnerability (58 of 100) .