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) >
Myliobatiformes (Stingrays)
鰩目 (Stingrays) >
Potamotrygonidae (River stingrays)
河魟科 (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335); limai: Named for Dr. José Lima de Figueiredo, kindly known as Zé Lima, a highly esteemed Brazilian ichthyologist who has contributed immensely to the development of ichthyology in South America..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
South America: Brazil (Jamari River, upper Madeira River basin).
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 64.8 cm WD 雄魚/尚未辨別雌雄; (Ref. 94972)
簡短描述
型態特徵 | 形態測量圖
脊椎骨: 117 - 130. This species can be diagnosed from other congeners by having the following combination of features: dorsal disc with a dark brownish background, covered with beige to whitish, closely packed small spots roughly arranged in small concentric patterns, these wider toward disc margins, without ocelli; whitish spots may be closely set forming vermicular patterns; lower back portion of disc with a characteristic roughly polygonal pattern, interspersed with small light spots; rostral dermal denticles fairly simple, composed of a single central crown and star-shaped base, with central and posterior disc denticles presenting star-shaped crown ridges, mostly with anterior and lateral dichotomies; two to three irregular rows of hook-shaped spines on dorsal tail midline. This differs from other amazonian Potamotrygon species (P. motoro (Müller & Henle, 1841), P. boesemani Rosa, Carvalho & Wanderley, 2008, P. signata Garman, 1913, P. leopoldi Castex & Castello, 1970, P. henlei (Castelnau, 1855), and the doubtful Potamotrygon ocellata (Engelhardt, 1912) by lacking any form of discrete dorsal ocelli or circular or irregular spots larger than eye-diameter. This is distinguished from P. schroederi Fernandez-Yépez, 1958 and P. tigrina Carvalho, Sabaj Pérez & Lovejoy, 2011 by presenting small dorsal beige to white spots arranged in concentric patterns, slightly greater than eye-diameter, and without banded pattern of alternating yellow and dark brown bands on tail (vs. much larger spots in vivid yellow with black pigmentation pattern and evidently banded tail); from P. orbignyi (Castelnau, 1855) and P. humerosa Garman, 1913 by its characteristic dorsal color pattern composed of small spots forming whitish polygonal patterns, especially on lower back region (vs. a broad, dark reticulate pattern spread over most of disc, usually without accessory spots) and a relatively smaller head region, longer tail, and also by the lack of disc tubercles (sometimes present in latter species); from P. falkneri Castex & Maciel, 1963 and P. tatianae Silva & Carvalho, 2011 by a darker brown dorsal backgroung color, its characteristic polygonal vermicular pattern on posterior disc, and shorter tail (means of 86.3% DW vs. 93.5% DW in P. falkneri and 109% DW in P. tatianae). It differs further from P. scobina Garman, 1913 by the absence of dorsal ocelli, by a much shorter tail (means of 86.3% DW vs. 121.5% DW), by a broader tail base (means of 14.8% DW vs. 13.4% DW), and by presenting 2?3 rows of midtail spines (vs. 1?2 rows in P. scobina). In addition, apart from P. scobina, P. limai is the only species of Potamotrygon which possesses three angular cartilages (vs. one or two in all other species) (Ref. 94972).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Fontenelle, J.P., J.P.C. Da Silva and M.R. De Carvalho, 2014. Potamotrygon limai, sp. nov., a new species of freshwater stingray from the upper Madeira River system, Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa 3765(3):249-268. (Ref. 94972)
IUCN 瀕危狀態 (Ref. 130435)
近危 (NT) (A2bc); Date assessed: 07 March 2021
人類使用
更多資訊
俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
年龄/大小成長長度-重量長度-長度長度-頻率形態測量圖型態特徵仔魚稚魚動力學入添量豐度BRUVS
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [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): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
