Potamotrygon amandae Loboda & Carvalho, 2013
分類 / 名前 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335); amandae: Named for Amanda Lucas Gimeno, who was an undergraduate colleague of the first author.
Eponymy: Amanda Lucas Gimeno (1984–2006) was a Brazilian biologist who graduated (2005) from the University of São Paulo, where the senior author had been one of her undergraduate colleagues. [...] (Ref. 128868), visit book page.
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335); amandae: Named for Amanda Lucas Gimeno, who was an undergraduate colleague of the first author.
Eponymy: Amanda Lucas Gimeno (1984–2006) was a Brazilian biologist who graduated (2005) from the University of São Paulo, where the senior author had been one of her undergraduate colleagues. [...] (Ref. 128868), visit book page.
環境：環境 / 気候帯 / 深さの範囲 / 分布範囲 生態学
; 新鮮な水 底生の漂泳性. Tropical
分布 領土 | 国連食糧農業機関の区域 | エコシステム | 事件 | 目的のマップ | 導入 | Faunafri
South America: Paraná-Paraguay basin.
サイズ / 重さ / 年齢
簡単な記述 検索表 | 形態学 | 形態計測学
脊つい: 113 - 129. Distinguished from other species of the genus of Potamotrygon in the Paraná-Paraguay basin, except P. motoro and P. pantanensis, by its predominantly grayish or dark brown dorsal background color usually with bicolored ocelli on dorsal disc (vs. lacking ocelli in P. falkneri, P. histrix, P. schuhmacheri, and P. brachyura; some specimens of P. amandae without ocelli and have a uniform dark brown or gray dorsal color). Can be diagnosed from P. motoro and P. pantanensis by having the following combination of characters: dorsal background predominantly grayish or dark brown (P. motoro with dorsal disc background color gray, dark gray, olive, olivaceous brown, or dark brown, and P. pantanensis with dorsal disc background brown); ocelli, when present, with two colors, with a whitish, light gray or light yellow central area surrounded by a black peripheral ring (tricolored ocelli with a peripheral dark ring, yellowish or orange center and with an intermediate band in P. motoro; bicolored ocelli with a beige, orange or dark yellow central area surrounded by a peripheral black ring in P. pantanensis); ventral disc grayish, covering almost all of ventral disc (ventral color predominantly whitish over central disc in P. motoro and P. pantanensis); dermal denticles differ from P. motoro due to their smaller size and without developed coronal plates in P. amandae and from P. pantanensis due to their distribution over almost entire dorsal side of disc (in P. motoroand P. pantanensis, dermal denticles do not cover almost entire dorsal disc); greater spiracular length compared to P. motoro and P. pantanensis, with mean 10.1% DW (ranging from 8.2 to 12.8% DW), whereas in P. motoro spiracular mean length is 8.0% DW (ranging from 6.7 to 9.8% DW), and in P. pantanensis mean spiraclular length is 8.7% DW (ranging from 7.6 to 9.6% DW); relatively longer tail, with tail length averaging 82.1% DW, whereas mean tail length is 78.5% DW in P. motoro and 73.4% DW in P. pantanensis; tail relatively more slender in P. amandae, with mean tail width 11.0% DW (ranging from 7.2 to 13.6% DW), whereas in P. motoro and P. pantanensis mean tail width is, respectively, 13.4% DW and 13.2% DW (ranging from 10.5 to 14.8% and 11.2 to 15.5% DW, respectively); frontoparietal fontanelle of neurocranium constricted at midlength (unconstricted in P. motoro and P. pantanensis), and postorbital process clearly more developed than in P. motoro and P. pantanensis; anterior angular cartilage with its medial portion at articulation with Meckel’s cartilages highly curved (J-shaped), and much greater than posterior angular cartilage (both angular cartilages subequal in P. motoro, and P. pantanensis with anterior angular cartilage rather straight, not J-shaped) (Ref. 95047).
ライフサイクルと交尾行動 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
主な参考文献
参考文献のアップロード | 参考文献 | コーディネーター : Carvalho, Marcelo | 協力者
Loboda, T.S. and M.R. de Carvalho, 2013. Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species coplex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae). Neotrop. Ichthyol/ 11(4):693-737. (Ref. 95047)
人間に対する脅威
Harmless
人間の用途
FAO - Publication: search | FishSource |
より多くの情報
養殖生態
食料品（獲物）
餌の構成
摂食量
食料配給
捕食動物
食料品（獲物）
餌の構成
摂食量
食料配給
捕食動物
生態学
生態学
生態学
人口動態
成長のパラメーター
最大年齢/サイズ
長さ-重量比。
長短関係。
体長組成
質量変換
補充
豊度
成長のパラメーター
最大年齢/サイズ
長さ-重量比。
長短関係。
体長組成
質量変換
補充
豊度
ライフサイクル
繁殖
成熟
成熟度／エラ
生産力
放精
産卵群
卵
卵の開発
幼生
幼生の動力
繁殖
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成熟度／エラ
生産力
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卵の開発
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解剖学
カマ
脳
オトリス
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脳
オトリス
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体組成
栄養素
酸素消費
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泳ぐ速さ
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毒性（LC50）
体組成
栄養素
酸素消費
水泳タイプ
泳ぐ速さ
視覚色素
フィッシュ・サウンド
病気と寄生虫
毒性（LC50）
遺伝子の
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
ゲノム
遺伝子の
ヘテロ接合性
遺伝
遺伝的多様性
用具
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インターネットの情報源
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モデルに基づく推定値
系統多様性指数 (参照 82804): PD50 = 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).
栄養段階 (参照 69278): 3.2 ±0.4 se; based on size and trophs of closest relatives