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) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: rosai: This new species is named after Ricardo S. Rosa, whose excellent revision of potamotrygonids (Rosa, 1985a) represents a landmark in our understanding of the taxonomy and diversity of this family..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. ; 0°S - 1°S, 48°W - 49°W
South America: Brazil in the upper, mid and lower Rio Amazonas basin, and probably in the lower reaches of its major tributaries.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 80.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 86515)
简单描述
型态特徵 | 形态测量图
Can be diagnosed by its unique dorsal color pattern, composed of numerous white to creamy-white vermiculate markings over a light brown, tan or gray background color. This species is tentatively further separated from H. gomesi by presenting a slightly more slender tail width at base (5.5% DW in holotype of H. rosai vs. 4.5% DW in holotype of H. gomesi), slightly greater preorbital snout length (31% DW in holotype of H. rosai vs. 33.2% DW in holotype of H. gomesi), and smaller pectoral axil to pelvic inner length (4.6% DW in holotype of H. rosai, ranging from 1.3 to 4.9% DW in all specimens, with a mean of 3.7% DW vs. 2.1% DW in holotype of H. gomesi, and ranging from 1.0 to 3.3% DW in all specimens, with a mean of 1.9% DW) (Ref. 86515).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
de Carvalho, M.R. and N.R. Lovejoy, 2011. Morphology and phylogenetic relationships of a remarkable new genus and two new species of Neotropical freshwater stingrays from the Amazon basin (Chondrichthyes: Potamotrygonidae). Zootaxa 2776:13-48. (Ref. 86515)
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
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [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).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
