分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Torpediniformes (Electric rays) >
Platyrhinidae (Fanrays)
Etymology: Platyrhinoidis: Greek, platys = flat + Greek, rhinos = nose + Greek, oides = similar to (Ref. 45335).
More on authors: Jordan & Gilbert.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 0 - 137 m (Ref. 96339). 亞熱帶的; 38°N - 23°N, 124°W - 108°W (Ref. 114953)
Eastern Pacific: San Francisco, USA to Baja California, Mexico.
東太平洋: 舊金山, 美國到墨西哥的下加利福尼亞。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm ?, range 48 - ? cm
Max length : 91.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2850)
Inhabits fine sand to mud bottom, often near kelp beds and sometimes abundant on mud flats of coastal bays. Often buries itself in bottom sediments. Ranges from the intertidal zone to 50 m depth (Ref. 12951). Solitary or in small groups, gathers in shallow bays, lagoons, and off beaches (Ref. 12951, Ref. 114953). Feeds on small sand-dwelling crustaceans, worms and mollusks. Ovoviviparous (Ref. 50449), with 1 to 15 pups in a litter (Ref. 48844), mainly in August (Ref. 114953). Possesses ampullary electroreceptors with a region of maximum sensitivity of 5-15 Hz (Ref. 10011).
棲息於細砂到泥底, 時常在海藻床的附近與有時豐富的在近岸海灣的淤泥平台上。 時常掩藏於底部沉澱物中。 分佈自潮間帶到 50 公尺深。 (參考文獻 12951) 獨居性或形成小群魚群.(參考文獻 12951) 吃小的棲息於砂中的甲殼動物,蠕蟲與軟體動物。 卵胎生的 (參考文獻 50449),1 到 15個幼胎一胎.(參考文獻 48844) 持有壺腹電感受體具有一個 5- 的最大敏感的區域 15個赫茲.(參考文獻 10011)
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449).東太平洋: 舊金山, 美國到墨西哥的下加利福尼亞。
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
人類使用
工具
特別的報告
下載 XML
網路資源
Estimates based on models
Preferred temperature (Ref.
123201): 15.3 - 23.1, mean 20.6 °C (based on 38 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.42 se; based on food items.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Fec = 1).
Fishing Vulnerability (Ref.
59153): High vulnerability (56 of 100).