Squalus raoulensis, Kermadec spiny dogfish

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Squalus raoulensis Duffy & Last, 2007

Kermadec spiny dogfish
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Image of Squalus raoulensis (Kermadec spiny dogfish)
Squalus raoulensis
Picture by Duffy, C.

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

Elasmobranchii 板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436);  raoulensis: Named for its type locality, Raoul Island..
More on authors: Duffy & Last.

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

海洋; 深度上下限 ? - 320 m (Ref. 58439).

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

Southwest Pacific: known only from the upper insular slope west of Napier Island (off Raoul Island) and north of Raoul Island on the Kermadec Ridge.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 68.1 cm TL 雄鱼/尚未辨别雌雄; (Ref. 58439); 72.9 cm TL (female)

简单描述 型态特徵 | 形态测量图

This species is distinguished by the following combination of characters: width of mouth 2.4 - 2.7 times horizontal prenarial length; direct pre-second dorsal length 3.6 - 4 times pectoral-fin anterior margin, 2.7 - 2.9 times dorsal caudal margin; preoral length 3 - 3.2 times horizontal prenarial length, 2.3 - 2.5 times internarial width; bifurcate anterior nasal flap; first dorsal fin upright and rounded apically; dorsal-fin spines not robust, width of exposed bases 0.6 - 0.7% TL: first dorsal-fin height 1.2 - 1.4 times its inner margin length; second dorsal-fin height 0.85 - 0.93 times its inner margin length; pectoral-fin anterior margin 1.7 - 1.8 times its inner margin length; preventral caudal margin 1.7 - 2.3 times inner margin of pelvic fin; caudal fin pale with strongly demarcated, whitish posterior margin, no caudal bar; flank denticles unicuspid; monospondylous centra 41-43, precaudal centra 84-85, total centra 112-113; maximum adult size at least 73 cm TL (Ref. 58439).

生物学特性     字汇 (例如 epibenthic)


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

Distinct pairing with embrace (Ref. 205).

主要参考文献 Upload your references | 参考文献 | 合作者 : Compagno, Leonard J.V. | 合作者

Duffy, C.A.J. and P.R. Last, 2007. Squalus raoulensis sp. Nov., a new spurdog of the 'megalops-cubensis group' from the Kermadec Ridge. pp. 31-38. In P.R. Last, W.T. White and J.J. Pogonoski Descriptions of new dogfishes of the genus Squalus (Squaloidea: Squalidae). CSIRO Marine and Atmospheric Research Paper No. 014. 130 pp. (Ref. 58439)

世界自然保护联盟红皮书 (Ref. 130435)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

 





人类利用

FAO - Publication: search | FishSource |

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特别资料

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网络资源

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes: , | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | 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 | Socotra Atlas | 树状分类阶层 | Wikipedia: 转至, 搜寻 | World Records Freshwater Fishing | Zoobank | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00162 - 0.00707), b=3.10 (2.93 - 3.27), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  4.3   ±0.3 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (49 of 100).