Squatina leae, Lea’s angel shark

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Squatina leae Weigmann, Vaz, Akhilesh, Leeney & Naylor, 2023

Lea’s angel shark
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Image of Squatina leae (Lea’s angel shark)
No image available for this species;
drawing shows typical species in Squatinidae.

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) > Squatiniformes (Angel sharks) 琵琶鮫目 (Angel sharks) > Squatinidae (Angel sharks) 琵琶鮫科(Angel sharks) (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish);  leae: Named for Lea-Marie Cordt..

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

海洋 居于水底的; 深度上下限 100 - 500 m (Ref. 128961).

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

Western Indian Ocean: Mascarene Plateau and India.

大小 / 重量 / 年龄

Maturity: Lm ?  range ? - ? cm
Max length : 71.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 128961); 87.0 cm TL (female)

简单描述 型态特徵 | 形态测量图

This small angel shark (maximum size 870 mm TL) is distinguished by the following characters: absence of median row of scute-like denticles on trunk; anterior nasal flap with two lateral, elongate barbels and a medial rectangular barbel, all with ventral margins slightly fringed to almost smooth; concave between eyes; posterior nasal flap has an additional barblet; pectoral-pelvic space 10.0-14.9% TL; pectoral-fin apex angular; pelvic-fin free rear tips do not reach level of first dorsal-fin origin; tail is moderately long, its length from cloaca 50.2-58.5% TL; pectoral fins are moderately long, length 31.1-35.2% TL; dorsal fins are not lobe-like; first dorsal-fin base is somewhat longer than second dorsal-fin base; caudal fin of adults with angular apices; monospondylous centra 43-46; diplospondylous precaudal centra 55-58; total precaudal centra 100-104; total vertebral centra 130-136; pectoral-fin skeleton with propterygium articulating with four radials. Colouration: dorsal conspicuously bright, beige to light grayish-brown, with many light yellowish flecks on trunk, and pectoral and pelvic fins with countless densely set, minute dark spots, partially forming pseudocelli, all over the dorsal surface (Ref. 128961).

生物学特性     字汇 (例如 epibenthic)

Reported size at birth is about 18.0-19.0 cm TL based on two late-term embryos; largest juvenile male with clearly immature claspers, is 37.3 cm TL (SAIAB 84178) and based on examined specimens, the maturity size of males is less than 64.5 cm TL. Largest adult (unretained) femal specimen is 87.0 cm TL; small paratypes at 26.3 and 37.0 cm TL are clearly juvenile (Ref. 128961).

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


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

Weigmann, S., D.F.B. Vaz, K.V. Akhilesh, R.H. Leeney and G.J.P. Naylor, 2023. Revision of the western Indian ocean angel sharks, genus Squatina (Squatiniformes, Squatinidae), with description of a new species and redescription of the African angel shark Squatina africana Regan, 1908. Biology 2023, 12(77):975. (Ref. 128961)

世界自然保护联盟红皮书 (Ref. 130435)

  不评价 

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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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 | 动物学的记录

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
营养阶层 (Ref. 69278):  3.9   ±0.6 se; based on size and trophs of closest relatives
回复力 (Ref. 120179):  中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (55 of 100).