Apistogramma gephyra


Apistogramma gephyra
Orange Cheek Apistogramma
吉非拉短鲷
Apistogramma gephyra was described by Kullander in 1980. It's appearance is very similar species to Apistogramma agassizii and is a member of the agassizii group of Apistogrammas. It can be very difficult to tell the difference between Apistogramma gephyra and Apistogramma agassizii. However, both species are reportedly found mixed tog ether at places in the wild and each species is distinct from the other.

Apistogramma gephyra are smaller and more slender than agassizii and generally less colorful. All gephyra have a red edge to their dorsal fin and only a few agassizii forms have this. Apistogramma agassizii males have a very pronounced spade shaped tail while Apistogramma is much rounder with a white submarginal band.. In his original description Kullander thought that there were a number of features that made A. gephyra similar to Apistogramma pertensis and the Greek word gephyra means bridge which Kullander used to indicate that he considered it to be a bridge between agassizii and pertensis.

The full distribution range of Apistogramma gephyra is unknown but they are found in the Rio Negro and Rio Franco drainages in Brazil. They are reported from the main Amazon as well and may be found in other waters in the middle Amazon area. Most of the collection reports have them coming from very soft very acid waters, both clear and black. 

This Apistogramma gephyra female is in brood care colors. This female is protecting a school of two day old fry. The small whitish dots around her are baby brine shrimp.

The color range exhibited by Apistogramma gephyra females is quite dramatic. Here we have a female in neutral colors. This is a common coloration for non dominate non breeding females. It is hard to believe that this nondescript fish becomes a striking yellow and black parent.
Apistogramma gephyra can be kept in pairs, trios or harems depending on tank size and fish availability. They are typical cave spawning Apistogrammas with the female taking responsibility for the eggs and developing fry. I have had males participate fully in parental care after a few days and joint care is not unusual. However, the female will generally stay closest to the fry leaving the male to handle the outer areas. Apistogramma gephyra fry can be fed newly hatched brine shrimp, micro worms or any small food. Care is typical and they present few problems to the experienced breeder.

从外观的样子不难推测吉菲拉短鲷与阿卡西短鲷有着极为接近的地缘关系,吉菲拉短鲷分布以玛瑙斯(Manaus)周边的尼格罗河下游为中心,而更为下游的圣塔伦附近也有它们的踪迹。虽然吉菲拉短鲷属于相当常见的品种,但却不曾见它们单独进口,主要都是混在玛瑙斯产的短鲷里ㄧ起进口。虽然如此但由于进口的数量相当庞大,所以在价格方面相当平实,取得十分容易。在体色和体形上,吉菲拉短鲷与阿卡西短鲷极为相似,雄鱼尾鳍上方的细小斑纹是它们的特征。色彩方面可大致分为蓝色与黄色两大品系,同一胎下来的鱼也会出现这种现象,所以,应该可以将此现象视为个体间的差异。
  除了一般正常管道进口的普通鱼种外,某些较具特色的鱼只也会被特别引进,像先前从尼尼河引进的鱼种,有着极为美丽的体色与完美比例的体形,叫人爱不释手。在尼格罗河所产以「尼格罗河-阿卡西短鲷」之名销售的鱼种,它们的体色和尾鳍的形状皆与阿卡西短鲷十分相似,所以它们很有可能是中间的独立种。
  特性:吉菲拉短鲷是阿卡西短鲷家族中的一员,在外观上和阿卡西极为相似,可分辨的特征为——吉菲拉短鲷尾鳍纹路皆会有蓝色外框,并且在成鱼长成后,吉菲拉短鲷的矛状尾鳍并不会如同阿卡西一般拉长,而是会一直维持短矛状,尾鳍的纹路呈现不规则喷点状,不似阿卡西整齐有规则。

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