Hoplisoma petracinii
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Hoplisoma petracinii |
| 别名 | Corydoras petracinii |
| 分类 | 鲶形目 Siluriformes › 美鲶科 Callichthyidae › Hoplisoma |
| 水体 | 淡水 |
| 原产地 | 阿根廷 |
| 成体体长 | 3.8 cm |
| 饲养难度 | 中等 |
| 最小水体 | 54 L |
| 最小缸长 | 60 cm |
| 群居方式 | 群游 |
| 外部数据 | seriouslyfish hoplisoma-petracinii;fishbase 65540 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 10–20 | — | °C |
| pH | 7–8 | — | — |
| 总硬度 | 10–20 | — | dGH |
概述
Hoplisoma petracinii 是阿根廷萨尔塔附近一条季节性溪流中的小型甲鲶，体形较低、鳍棘较短，适应石间流水生活。饲养应突出凉水、高溶氧和洁净稳定的环境，不宜套用常见热带鼠鱼条件。
分布与栖息地
仅知一个采点，位于萨尔塔省 Lomas de Medeiros 山地的 San Lorenzo 河流域，经 Juramento 河水系属于巴拉那河上游。模式产地海拔约 1222 m。
当地无名小溪底床多石，夏季雨季流得较急，一年中很长时间却接近干涸。下游仍有常年水，上游鱼类可退入较深处留下的水潭维持生存。
临近萨尔塔市、道路施工和垃圾倾倒使这一溪流面临较大生态压力。
饲养环境
细沙或保持非常干净的圆滑砾石均可，提供遮蔽，搭配水磨石块较符合其自然环境。
溶氧、水质和温度必须认真管理，天然枯水期的存在不意味着缸中也可以容忍脏水或低氧。
食性与喂食
相关鼠鱼类群通常是搜食型杂食鱼，常接受沉底干粮、红虫、水蚯蚓等小型活饵或冷冻饵。应采用多样投喂，但这种类群经验不能当作已经确认的本种天然食物清单。
补充说明
体侧骨板交界有五至七枚分离的近方形黑斑，透明尾鳍的深斑组成三至四条不规则竖带，胸、腹和臀鳍透明无深色纹。较小眼睛、较低体高和短硬棘也是形态组合的一部分。
它并非常规贸易鱼。虽然部分外形接近 Aspidoras，头骨结构不同。相关甲鲶具有辅助空气呼吸能力，但不能据此降低本种富氧要求，搬运时仍应注意胸鳍硬棘。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
Hoplisoma petracinii is a small catfish from an ephemeral stream near Salta, Argentina. A low profile and reduced fin spines suit life among rocks in flowing water. Cool, oxygen-rich, clean conditions take priority over assumptions based on common tropical cory catfishes.
Distribution & habitat
Only one locality is known in the Lomas de Medeiros hills of Salta Province, within the San Lorenzo watershed. This connects through the Juramento to the upper Paraná system. The type site is approximately 1222 m above sea level.
The unnamed rocky stream flows swiftly during summer rains but nearly dries out for much of the year. Permanent water remains downstream, while deeper residual pools allow fish to survive farther upstream.
Proximity to Salta city, road construction, and refuse dumping place ecological pressure on the stream.
Aquarium setup
Use fine sand or very clean smooth gravel, with shelter and water-worn stones reflecting the natural setting.
Close attention to oxygenation, cleanliness, and temperature is essential. Natural low-water periods do not justify poor water quality or inadequate oxygen in an aquarium.
Diet & feeding
Related cory catfishes are generally foraging omnivores and commonly accept sinking preparations with small live or frozen bloodworms and aquatic worms. A varied feeding approach can draw on that group experience without treating it as a confirmed natural menu for this species.
Notes
Five to seven separate, roughly square flank blotches occur along the meeting line of the body plates. Dark caudal spots form three or four uneven vertical bands, while the pectoral, pelvic, and anal fins are clear and unmarked. Small eyes, reduced body depth, and short spines add to the identification combination.
This is not a routine aquarium-trade fish. Some features resemble Aspidoras, but the cranial structure differs. Supplementary air breathing among armored catfishes does not remove the need for high oxygen levels here. Fin spines still warrant careful handling.
来源
- https://www.seriouslyfish.com/species/hoplisoma-petracinii(抓取于 2026-10-10)
hoplisoma-petracinii · 文件: data/species/hoplisoma-petracinii.md · 状态: 草稿