Devario affinis
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Devario affinis |
| 别名 | Perilampus affinis |
| 分类 | 鲤形目 Cypriniformes › 鲤科 Cyprinidae › Devario |
| 水体 | 淡水 |
| 原产地 | 缅甸 |
| 成体体长 | 8 cm |
| 饲养难度 | 中等 |
| 最小水体 | 243 L |
| 最小缸长 | 120 cm |
| 群居方式 | 群游 |
| 特征 | 会跳缸: 是 |
| 外部数据 | seriouslyfish devario-affinis;fishbase 61456 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 20–26 | — | °C |
概述
Devario affinis 的饲养方式宜以清洁、富氧的溪流环境作为谨慎起点，群体和相容伙伴的安排仍需持续观察。它曾被当作其他近缘种的异名，身份与产地比笼统的“大型斑马鱼”名称更值得关注。
分布与栖息地
模式产地的历史名称“Tenasserim”涵盖缅甸伊洛瓦底江三角洲以南、以东的一大片区域，不能直接等同今天单一行政区。旧描述与锡当河采集有关，但近期贸易鱼据称来自南部德林达依地区的土瓦，可能分布在德林达依山脉西坡河流和萨尔温江下游。
它可能主要生活在山溪及小河上游，水清而含氧高，底部为砾石和大小岩块，岸边或水面上方有植被。流量、浑浊程度预计会随季节变化。
饲养环境
可尝试用沙、细砾、圆滑石块、少量大石及沉木根枝组成溪流式布景。固定在布景上的耐阴蕨类、水榕比柔弱的埋根植物更适合这一方向。
较高溶氧、适中水流及避免有机废物积累，是依据近缘鱼经验提出的保守安排，并非已经充分确认的本种专属需求。每周换水约 30%～50%，缸盖严密，避免跳出；不必强求极快流速。
食性与喂食
天然可能主要捕食昆虫及幼体，人工环境中预计不难开口。可试用优质干粮，并搭配小型活饵、冷冻红虫、水蚤及丰年虾，观察每条是否实际接受。
习性与混养
预计攻击性不强，可尝试与体型相近、适应相似流水环境的鱼搭配，但不能把这一预期当作已经证实的温和保证。参照同属鱼，至少六条同种是较合理的起点，并应观察群体内的竞争。
雌雄区分
成熟雌鱼预计比雄鱼稍大、腹部较圆，颜色相对较淡，尚不宜只凭单一外观特征断定性别。
补充说明
2001 年被重新确认为有效种。鉴别仍受早期描述和近缘种相似性的限制，买鱼时的产地信息有助于避免把所有外观相近个体混为一谈。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。
English
Overview
For Devario affinis, clean, oxygenated stream-style conditions are a cautious starting point rather than a thoroughly tested species-specific formula. Group behavior and compatibility need observation. Its history of synonymy makes identification and collection locality more useful than a broad “large danio” label.
Distribution & habitat
The historical type locality, Tenasserim, covered extensive territory south and east of Myanmar's Irrawaddy delta, not a single modern administrative unit. The original account involved Sittaung collections, while traded fish have reportedly come from Dawei in southern Tanintharyi. Western slopes of the Tenasserim Hills and the lower Salween appear to be involved.
Hill streams and small upper river reaches with clear oxygenated water, gravel, rocks, and bankside vegetation are the likely habitat. Flow and turbidity are expected to change seasonally.
Aquarium setup
A provisional stream layout can combine sand, gravel, rounded stones, occasional boulders, and wood. Attached hardy ferns or Anubias are appropriate choices for this arrangement.
High oxygen availability, moderate circulation, and prevention of organic waste buildup are conservative recommendations based on related fishes, not fully confirmed unique requirements. Weekly changes of roughly 30–50% and a secure cover are sensible provisions. Extremely fast flow is unnecessary.
Diet & feeding
Wild feeding is presumed to focus on insects and larvae. Captive acceptance is expected to be broad, but observe actual feeding. Try quality dry preparations with small live or frozen bloodworms, water fleas, and Artemia.
Behaviour & compatibility
Serious aggression seems unlikely, and similar-sized fishes from comparable flowing habitats are prospective companions. That expectation is not a demonstrated guarantee. By comparison with related species, begin with at least six individuals and monitor competition within the group.
Sexual dimorphism
Mature females are expected to be a little larger, rounder in the belly, and less colorful than males. A single visual feature should not be treated as decisive.
Notes
It was restored as a valid species in 2001 after a period of synonymy. Limited diagnostic detail and resemblance to relatives make locality information valuable when assessing apparently similar trade fish.
来源
- https://www.seriouslyfish.com/species/devario-affinis(抓取于 2026-10-10)
devario-affinis · 文件: data/species/devario-affinis.md · 状态: 草稿