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Rhinobatos ranongensis Last, Séret & Naylor, 2019
Ranong guitarfish
Common names from other countries
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) > Rhinopristiformes (Shovelnose rays) > Rhinobatidae (Guitarfishes)
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); ranongensis: Named for the Ranong fish landing in western Thailand, where the first specimen was collected 25 years ago, and subsequently most of the types.
Etymology: Rhinobatos: Greek, rhinos = nose + Greek, batis, -idos = a ray (Raja sp.) (Ref. 45335); ranongensis: Named for the Ranong fish landing in western Thailand, where the first specimen was collected 25 years ago, and subsequently most of the types.
Environment: milieu / climate zone / depth range / distribution range 生态学
海洋 居于水底的; 深度上下限 30 - 69 m (Ref. 123963).
分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri
Eastern Indian Ocean: Andaman Sea, Myanmar and western Thailand.
大小 / 重量 / 年龄
简单描述 检索表 | 型态特徵 | 形态测量图
This medium-sized species is distinguished by the following set of characters in adult male: disc is wedge-shaped and relatively narrow, its width 31-33% TL, length 1.3-1.4 times width; snout moderately elongate, its length 3.0–3.2 times interspiracular distance, 4.1-4.4 times interorbital width; orbit and spiracular openings are small, orbit diameter ~1.5 times spiracle length; nostrils weakly oblique, length 1.3-1.6 times internarial distance; mouth narrow, 5.4-6.0% TL; preoral length 6.3-6.9 times internarial distance; posterior nasal flaps are broad; spiracular folds 2, the outermost fold slightly taller than inner fold; ridges of rostral cartilage are almost parallel, converging anteriorly but not constricted medially; anterior cartilage is broadly sickle shaped, truncate posteriorly; gill slits and their interspaces are narrow, distance between fifth gill slits 3.0-3.2 times in ventral head length; prebranchial sensory pore system distinct, extending to just behind margin of first gill slit; postscapular sensory canal indistinct, deeply embedded, not forming shallow groove; thorn patches present on supraorbit and scapular region, and row along dorsal midline rudimentary, inconspicuous; denticles on dorsal fins are densest anteriorly, present but more sparse posteriorly; dorsal fins are small, height of first 5.4-6.2% TL; pelvic-fin inner margin subequal to its base length; interdorsal distance 2.9-3.3 times first dorsal-fin base; dorsal caudal margin 2.0-2.4 times the preventral margin; upper jaw with 68-82 tooth rows; snout angle 59-64°; pectoral radials 64-68; post-synarcual centra 172-176; nasal lamellae 47-48. Colouration: dorsal fins brownish anteriorly, dusky posteriorly; dorsal disc of adults largely uniformly brownish, no spots or obvious blotches; no large, black, teardrop marking on undersurface of snout (Ref. 123963)
Caught individuals: males at 49.4 and 50.3 cm TL were immature and the largest female (51.1 cm TL) was most probably at late adolescent or early mature stage of development (Ref. 123963).
Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
主要参考文献
Upload your references | 参考文献 | 合作者 : McEachran, John | 合作者
Last, P.R., B. Séret and G.J.P. Naylor, 2019. Description of Rhinobatos ranongensis sp. nov.(Rhinopristiformes: Rhinobatidae) from the Andaman Sea and Bay of Bengal with a review of its northern Indian Ocean congeners. Zootaxa 4576(2):257-287. (Ref. 123963)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
次级保育类动物, 见 IUCN 红皮书 (VU) (A2d); Date assessed: 13 May 2020
对人类的威胁
人类利用
FAO(Publication : search) | FishSource |
更多信息
Trophic ecology
食物相
食性组成
食物消耗量
Food rations
捕食者
食物相
食性组成
食物消耗量
Food rations
捕食者
Ecology
生态学
Home ranges
生态学
Home ranges
Population dynamics
成长参数
Max. ages / sizes
Length-weight rel.
Length-length rel.
体长-频率
Mass conversion
入添量
丰度
成长参数
Max. ages / sizes
Length-weight rel.
Length-length rel.
体长-频率
Mass conversion
入添量
丰度
Life cycle
繁殖
成熟度
孕卵数
产卵场
Spawning aggregations
卵
卵的发育
仔鱼
稚鱼动力学
繁殖
成熟度
孕卵数
产卵场
Spawning aggregations
卵
卵的发育
仔鱼
稚鱼动力学
Anatomy
鳃区
Brain
Otolith
鳃区
Brain
Otolith
Physiology
Body composition
Nutrients
耗氧量
游泳类型
游泳速度
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Body composition
Nutrients
耗氧量
游泳类型
游泳速度
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
遗传学
Heterozygosity
遗传率
遗传学
Heterozygosity
遗传率
工具
E-book | 野外调查 | 长度- 频率 Wizard | 生活- 历史的工具 | 分布图 | Classification Tree
| Catch-MSY |
特别资料
下载 XML
网络资源
Aquatic Commons | BHL | Cloffa | Websites from users | 核实 FishWatcher | CISTI | Catalog of Fishes(属, 种) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(基因组, 核苷酸) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | 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 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00295 (0.00151 - 0.00578), b=3.13 (2.96 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
营养阶层 (Ref. 69278): 3.7 ±0.4 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 low fecundity).
Fishing Vulnerability (Ref. 59153): Moderate to high vulnerability (46 of 100).