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) >
Squaliformes (Sleeper and dogfish sharks) >
Somniosidae (Sleeper sharks)
Etymology: Somniosus: Latin for sleepy, reflecting Lesueur’s surmise that these sharks are slow or sluggish because of their relatively small fins (hence the name sleeper sharks). (See ETYFish); cheni: In honor of Wen-Jong Chen, Taitung Xin Gang District Fisherman’s Association, for contributions of chondrichthyan fish samples and research assistance with Taiwan and international research for over 30 years. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋 深海底的; 深度上下限 500 - ? m (Ref. 123759).
Northwest Pacific: Taiwan.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 14.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 123759); 13.6 cm TL (female)
简单描述
型态特徵 | 形态测量图
脊椎骨: 75 - 79. This species is distinguished from its congeners by the following set of characters: no anal fin; two spineless dorsal fins, first dorsal fin higher and larger than second dorsal fin; short lateral keels on the caudal peduncle, precaudal pits absent; caudal fin is asymmetrical and paddle-shaped, with a relatively short upper lobe and long lower lobe; rhomboid-shaped dermal denticles; teeth dissimilar in upper and lower jaws, upper-jaw teeth small with lanceolate, in 72 rows, lower-jaw teeth semioblique with low roots, in 28 rows; precaudal vertebrae 60-61, caudal vertebrae 15-18, total 75-78; number of turns in spiral valve 25-26 In mid-term embryo stage (12.8-15.0 cm TL); no teeth and dermal denticles; sexes identifiable; caudal keel present. Colouration: body light brown to yellow-grayish (Ref. 123759).
This species was collected in canyons surrounded by deep-sea longliner off eastern Taiwan at a depth greater than 500 m (Ref. 123759).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Hsu, H.-H., C.-Y. Lin and S.-J. Joung, 2020. Somniosus (Rhinoscymnus) cheni sp. nov. A new species of sleeker shark (Squaliformes: Somniosidae) from Eastern Taiwan, with aspects of embryo biology. Zool. Stud. 59:48. (Ref. 123759)
人类利用
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
工具
特别资料
下载 XML
网络资源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00168 - 0.00901), b=3.13 (2.94 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.4 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): Low vulnerability (10 of 100).
