分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Danionidae (Danios) > Rasborinae
Etymology: Rasbora: Rasbora, an Indian word for a fish, also used in Malay peninsula; truncata: The specific name, truncata, from the Latin referring to the truncated lateral line system in this species, which has an incomplete lateral line and also has a truncated cephalic line..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性.
Asia: Alas River in northwestern Sumatra, Indonesia.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 85846)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 9; 臀鰭軟條: 7; 脊椎骨: 31 - 32. Distinguished from all members of Rasbora trifasciata-group by a weakly developed post-opercular streak, which extends ventrally to the horizontal through the ventral margin of pupil (vs. distinct streak, which extends ventrally to reach the axillary lobe of pectoral fin). Can be further diagnosed from other members in northwestern Sumatra by the following combination of characters: male cephalic tubercles conical, distinctly pointed, with a shallow, wide depression basally; presence of cranial superficial neuromasts (each basal plate is lower than the skin surface and surrounded by peripheral ridge and groove, respectively); the first infraorbital (lachrymal) with a relatively straight dorsal margin, but without a posterodorsal process; the lachrymal region peripherally pigmented with an unpigmented central area; absence of dorsomedial branch of supraorbital canal toward posterior margin of frontal; an axial streak extending forward and terminating at the area between vertical through the dorsal-fin origin and the pelvic-fin insertion; the cephalic tubercles present only in males; a transverse scale count anterior to the dorsal-fin origin and pelvic-fin insertion of K4/1/2K; 12 circumpeduncular scales; an immaculate opercular flap; a basal reticulation pattern comprised of a network of well-developed parenthesis-shaped bars on the midlateral surface of the body; a maximum vertical coverage of the basal reticulation two and a half longitudinal scale rows; the lateral line absent from one to six posterior scales (only 20-26 scales perforated); lateral line series unpigmented on the posterior portion; and the pelvic-fin rays i,7 (Ref. 94947).
This species mostly inhabits moderate-flowing turbid rivers. In streams with fast-flowing water, it tends to form school at the stream margins or the pool regions along the river banks. It occurs sympatrically with Rasbora api and R. cf. sumatrana (Ref. 94947).
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Lumbantobing, D.N., 2010. Four new species of the Rasbora trifasciata-group (Teleostei: Cyprinidae) from northwestern Sumatra, Indonesia. Copeia 2010(4):644-670. (Ref. 85846)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 27 December 2018
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): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
