分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Atheriniformes (Silversides) >
Bedotiidae (Madagascar rainbowfishes)
Etymology: Bedotia: After Maurice Bedot, 1859-1927; born in Geneva, systematist on Hydrozoan; albomarginata: The specific name is derived from the Latin 'albo' (white) and 'marginatus' (edged or bordered), in reference to the characteristic white marginal stripes present on the second dorsal and anal fin (Ref. 56501).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 大洋性. 热带
Africa: Mananara and Rienana River drainages, southeastern Madagascar (Ref. 56501).
非洲: 马达加斯加.(参考文献 56501)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 8.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 56501)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 15 - 20; 臀棘: 0; 臀鳍软条: 16 - 19; 脊椎骨: 33 - 36. Body elongate and laterally compressed, particularly posteriorly (Ref. 56501). Snout elongate, dorsoventrally compressed and wide, in lateral view concave posterior to premaxillary pedicels (Ref. 56501). Eye large (Ref. 56501). Mouth large and oblique, caudal margins of maxilla and premaxilla terminate at level of vertical located at about 1/3 distance through orbit from anterior margin (Ref. 56501). First dorsal-fin origin located well posterior to vertical through pelvic-fin insertion, at about 3/4 of distance between pelvic- and anal-fin origins; with 4-6 feeble unbranched rays (Ref. 56501). Second dorsal-fin origin located well posterior to vertical through anal-fin origin, at about 1/3 distance along anal-fin base; with 11-14 rays (Ref. 56501). Flanks covered with large, regularly imbricate cycloid scales; head asquamate from tip of snout through interorbital region to posterior margin of orbit, except for single, enlarged, dorsal interorbital scale that extends anteriorly to approximately mid-orbit; cheek scaled; opercle scaled except along caudal margin, and subopercle scaled except along caudal or caudoventral margin; interopercle scaled; lacrimal and posterior margin of preopercle asquamate; 19-20 predorsal scales, and 37-38 scales in longitudinal series (Ref. 56501).
Base body coloration dark olive to dark grayish-brown dorsal of lateral midline, white or pearlescent ventral to lateral midline; prominent, wide black midlateral stripe present and continuous, some iridescent golden scales present within midlateral stripe centrally on body and dorsal to midlateral stripe posteriorly on flanks; chest and belly white or pearlescent (Ref. 56501). Males have a white margin on the second dorsal fin , and both sexes have a blotchy bright yellow, orange, or orangish-red anal fin (Ref. 56501).
细长的身体与侧扁的, 特别地在后部.(参考文献 56501) 吻延长, 有背腹性扁长形与宽的, 在侧面中凹的在上颌骨前的茎后面.(参考文献 56501) 眼大的.(参考文献 56501) 颚骨与前颌骨的嘴大且斜又尾部边缘经过来自前缘的眼窝在垂直被位于的大约 1/3 距离的程度结束。 (参考文献 56501) 设置的第一背鳍起源后面垂直的经过腹鳍嵌入, 于大约 3/4 腹鳍与臀鳍起源之间的距离; 有 4-6 个微弱的不分枝的鳍条。 (参考文献 56501) 设置的第二背鳍-鳍的起源后面垂直的透过臀鰭起源, 在大約 1/3 距離沿著臀鰭基底; 與 11-14個鰭條.(參考文獻 56501) 側面覆蓋著了大的, 經常地邊緣重疊成瓦狀圓形的鱗片; 頭部 asquamate 對眼窩的後緣經過眼間骨區域從吻尖,除了單個,增大了, 前面地延伸的背部的眼間骨鱗片到大約在-之中眼窩; 頰的覆有鱗片的; 鰓蓋覆有鱗片的除了沿著尾部的邊緣之外, 與子鰓蓋覆有鱗片的除了沿著之外尾部的或 caudoventral 邊緣; 中鰓蓋覆有鱗片的; 淚骨與前鰓蓋骨 asquamate 的後緣; 在縱向的系列中的 19-20個前背的鱗片 , 與 37-38個鱗片.(參考文獻 56501)
基底身體顏色深色的橄欖色到深灰褐色背部的對側面的中線側面中線，白色或 pearlescent 腹面; 突出的, 寬的黑色側面中央的斑紋呈現與連續的, 一些彩虹色的金鱗片出現在側面中央的斑紋裡面在中心在身體上與背部的對側面中央的斑紋在側面後面; 胸與腹部白色的或 pearlescent.(參考文獻 56501) 在第二個背鰭上雄魚有白色的邊緣，而且兩性有一個到處有污點的鮮黃色的﹐橘色的, 否則橘紅色臀鰭.(參考文獻 56501)
Restricted to inland, generally forested, highland habitats; not collected in deforested lower reaches of Mananara or Rienana Rivers; also found in swamps, small rivers and streams that are quite shallow and that are likely subject to periodic drying or very reduced flow (Ref. 56501).
它在有缓慢到中等的流速的河川与溪流中被发现于。 (参考文献 56501)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 马达加斯加.(参考文献 56501)
Sparks, J.S. and L.M.R. Rush, 2005. A new rainbowfish (Teleostei: Melanotaenioidei: Bedotiidae) from the southeastern highlands of Madagascar, with comments on the biogeography of Bedotia. Zootaxa 1051:39-54. (Ref. 56501)
世界自然保护联盟红皮书 (Ref. 130435)
濒危 (EN) (B1ab(iii)); Date assessed: 21 June 2016
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
