Pethia punctata
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Pethia punctata |
| 别名 | Puntius punctatus |
| 分类 | 鲤形目 Cypriniformes › 鲤科 Cyprinidae › Pethia |
| 水体 | 淡水 |
| 原产地 | 印度 |
| 成体体长 | 5.5 cm |
| 饲养难度 | 入门 |
| 最小水体 | 68 L |
| 最小缸长 | 75 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish pethia-punctata;fishbase 60202 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 21–26 | — | °C |
| pH | 6–7.5 | — | — |
| 总硬度 | 2–12 | — | dGH |
概述
Pethia punctata 是印度西高止山的小型温和鲃类,完整侧线、两处暗斑和背鳍成排斑点有助于辨认。它有过与近似种混作异名或亚种的历史,不能只按“两点鲃”式商品外观判断。
分布与栖息地
模式产地“Cochin”即今喀拉拉邦科钦,分布似乎限于西高止山向西流的河系。记录包括喀拉拉邦 Wayanad、Ernakulam 及泰米尔纳德邦部分区域;卡纳塔克邦内特拉瓦蒂、库马拉达拉河流域也可能有分布。
似乎更常见于浅溪、小支流,有时海拔较高,可能偏好泥或淤泥底。不同地点和季节的水深、流速及浑浊度可能不同,不宜把这些倾向写成统一微栖境。
饲养环境
深色底床和密植环境通常更显色,浮水植物、沉木根枝可减光。布景并不苛刻,过滤不必很强,适度水流或溪流式环境也可采用。
食性与喂食
天然可能杂食,摄入蠕虫、昆虫、小型无脊椎动物、植物物质和有机碎屑。缸内容易投喂,优质薄片、颗粒配规律的红虫、水蚤、丰年虾等小型活饵或冷冻饵,部分干粮含植物或藻成分。
习性与混养
通常温和,可与体型相近、需要相似环境的开阔水域小型鱼或适合的鳅类、底栖鲤科鱼搭配。
建议八至十条或更多、雌雄混合,同伴及其他适型群游鱼有助于安全感,雄间展示也更自然。
雌雄区分
成年雄鱼较纤细、体色更浓,尤其不成对鳍和腹鳍色彩较鲜明。
繁殖
可参考近缘小型鲤科鱼的散卵方法,但本种成功细节尚未确定。另设弱光成熟水环境,以隔卵网、塑料草垫、玻璃珠、细叶草或拖把保护卵。弱酸至中性、适温上端及轻柔气动过滤,是近缘方法的尝试条件。
调理后可放一至两对,或更宽敞缸内雌雄各约六条,可能次晨产卵;见卵后移走成鱼。近缘记录通常约 24~48 小时孵化,再过约一天自由游动,先喂微小纤毛虫类食物,逐渐改微虫或丰年虾无节幼体。时间不应当成本种的保证。
补充说明
身体前方暗点位于侧线下方一列鳞的位置,背鳍带多排点,侧线完整。不同描述对侧线鳞数并不一致,因此比起单一计数,侧线完整性与斑点位置更值得综合观察。
图片
图片来自 SeriouslyFish,版权归各摄影者所有。


English
Overview
A peaceful Western Ghats barb, Pethia punctata combines a complete lateral line, two body blotches, and rows of dorsal spots. Its history of synonymy or subspecies treatment makes superficial two-spot trade identification unreliable.
Distribution & habitat
The type locality, Cochin, is modern Kochi in Kerala. It appears restricted to west-flowing Western Ghats rivers, with records in Wayanad, Ernakulam, and parts of Tamil Nadu. The Netravathi and Kumaradhara drainages in Karnataka are additional possible locations.
Shallow streams and minor tributaries seem typical, sometimes at higher elevation, with an apparent preference for mud or silt. Locality and season probably alter depth, current, and turbidity; these tendencies do not define one uniform habitat.
Aquarium setup
A dark bottom and dense planting enhance color, while floating shade and roots soften illumination. Decoration is flexible. Forceful filtration is unnecessary, although moderate movement or a stream-style setting can work.
Diet & feeding
Omnivorous feeding on worms, insects, small invertebrates, plants, and organic particles is suspected. Captive fish are easily fed. Combine quality flakes or granules with regular small live or frozen bloodworms, water fleas, and Artemia, including some plant-rich preparations.
Behaviour & compatibility
It is generally peaceful with similar-sized open-water fishes or appropriate loaches and bottom cyprinids sharing its conditions.
Maintain eight to ten or more in a mixed-sex group. Companions and other suitable schooling fish provide reassurance and encourage natural male display behavior.
Sexual dimorphism
Adult males are slimmer and more colorful, particularly in the unpaired and pelvic fins.
Breeding
Related small-cyprinid egg-scattering methods can guide an attempt, but successful details for this species are not established. A separate dim setup can use mature slightly acidic to neutral water at the warmer end of the suitable range, gentle air-driven filtration, and mesh, synthetic grass, marbles, fine plants, or mops protecting eggs.
Try one or two conditioned pairs or around six of each sex with more room. Spawning may follow next morning; remove adults when eggs appear. Related accounts suggest hatching in 24–48 hours and free swimming about a day later, with infusoria-grade food before microworms or Artemia nauplii. These timings are provisional guidance.
Notes
The front blotch lies one scale row below the complete lateral line, and the dorsal carries rows of spots. Published scale counts differ, so lateral-line completeness and marking position are more useful together than one isolated count.
来源
- https://www.seriouslyfish.com/species/pethia-punctata(抓取于 2026-10-10)
pethia-punctata · 文件: data/species/pethia-punctata.md · 状态: 草稿