Narcine insolita, Madagascar numbfish

Narcine insolita Carvalho, Séret & Compagno, 2002

Madagascar numbfish
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Image of Narcine insolita (Madagascar numbfish)
No image available for this species;
drawing shows typical species in Narcinidae.

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) > Torpediniformes (Electric rays) > Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335);  insolita: Name from Latin 'insolitus' meaning unusual or uncommon; referring to the unusual and unique disparate dimensions of the dorsal fins, treated as an adjective (feminine)..

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

; 海洋 居于水底的; 深度上下限 150 - 175 m (Ref. 93929). 熱帶; 15°S - 25°S, 42°E - 45°E (Ref. 114953)

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

Western Indian Ocean: Madagascar.
西印度洋: 馬達加斯加。

Length at first maturity / 大小 / 重量 / 年龄

Maturity: Lm ?  range ? - 35.6 cm
Max length : 35.6 cm TL (female)

简单描述 型态特徵 | 形态测量图

脊椎骨: 119 - 127. This species is distinguished from all its congeners by the following characters: unique presence of a very large and prominent first dorsal fin that is conspicuously taller, larger and with a longer base than the second dorsal fin; large spiracles, conspicuously rounded, not projecting anteriorly lateral to eyes, and with elevated rims all around; interspiracular distance much smaller than interorbital distance; small, broadly rounded lateral cusplets adjacent to principal cusp on teeth of more concealed inner rows; upper and lower tooth bands equal in width and broadly circular in outline; dorsal colouration composed of a yellowish brown background with darker brown to reddish brown irregular blotches on disc margins, posterior disc and anterior margin of snout; darker brown blotches on anterior portion of dorsal and caudal fins, at caudal apex, and laterally on tail at level of dorsal fins; precaudal vertebrae 68-71; total vertebrae 119-127 (Ref. 93929).

生物学特性     字汇 (例如 epibenthic)

Usually found over predominantly muddy substrata (Ref. 93929). Maturity size of males at ca. 27 cm TL; birth size at ca. 14 cm TL (Ref. 114953).

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

西印度洋: 馬達加斯加。

主要参考文献 Upload your references | 参考文献 | 合作者 : Carvalho, Marcelo | 合作者

de Carvalho, M.R., B. Séret and L.J.V. Compagno, 2002. A new species of electric ray of the genus Narcine Henle, 1834 from the South-western Indian Ocean (Chondrichthyes: Torpediniformes: Narcinidae). S. Afr. J. mar. Sci. 24:135-149. (Ref. 93929)

世界自然保护联盟红皮书 (Ref. 125652)

  数据缺失 (DD) ; Date assessed: 24 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的





人类利用

FAO - Publication: search | FishSource |

更多信息

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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. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00464 - 0.02977), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245).
营养阶层 (Ref. 69278):  3.1   ±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 (Assuming fecundity<100).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (26 of 100) .
Climate Vulnerability (Ref. 125649):   (0 of 100) .