锐齿锯脂鲤
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Serrasalmus serrulatus |
| 别名 | 銳齒鋸脂鯉 |
| 分类 | 脂鲤目 Characiformes › 锯鲑脂鲤科 Serrasalmidae › Serrasalmus |
| 水体 | 淡水 |
| 成体体长 | 19 cm |
| 饲养难度 | 中等 |
| 最小水体 | 243 L |
| 最小缸长 | 120 cm |
| 群居方式 | 独居 |
| 外部数据 | seriouslyfish serrasalmus-serrulatus;fishbase 51196 |
| 原产地 | 秘鲁、巴西西部和阿根廷有报道，但分布及种名适用范围仍不明确 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 24–28 | — | °C |
| 总硬度 | 5–15 | — | dGH |
概述
锐齿锯脂鲤（Serrasalmus serrulatus）的身份和分布都存在较大不确定性，外观与多种近似鱼十分接近。饲养以单条专养为宜，不能把尚未确认的产地或商品标签当成可靠鉴种结论。
分布与栖息地
秘鲁、巴西西部及阿根廷有报道，但这一名称可能被用于不止一种鱼，范围尚未厘清。本种具体栖地不能直接用近似种偏好的河流、溪流阴影区来替代。
饲养环境
单条底面积至少约 120 × 45 cm。用树根、枝条、长高的水草、浮水植物及暗色底床形成足够遮蔽，比彻底裸露的环境更有助于减少紧张。
维持很高的水质水平和适度流动。外滤或底滤回水沿缸长方向布置，水面轻微扰动即可，合理布置后未必需要额外造浪。每周换水最多约一半，加热棒尽量放到主缸外，或配坚固保护罩。
食性与喂食
野外可能以其他鱼的鳍和较小鱼类为食，是否也吃果实种子未获确认。多数可逐渐接受非活饵，但新到或较大的个体可能暂时拒食。
幼鱼可用红虫、水蚯蚓、丰年虾和碎虾肉，成鱼可提供适口贝肉、虾、鱼肉、鱿鱼和蚯蚓，成年后每周两至三餐可作参考。不宜大量喂陆生肉类，也无需用活饵鱼承担传病风险。
习性与混养
不适合与其他鱼同养，也不是群居鱼。同种之间可能一直争斗到仅剩一条，不能因为幼鱼一时共处就安排长期群养。
补充说明
它在一组外形接近的食人鱼中处于难以厘清的位置，多个名称的区分曾依赖产地。准确身份可能需要比一般外观照片更完整的资料，不能把每种贸易外观直接当成独立物种。
English
Overview
Serrasalmus serrulatus has an uncertain identity and range, closely resembling several related fishes. Individual housing is appropriate. An unverified locality or trade label should not be treated as a secure identification.
Distribution & habitat
Reports come from Peru, western Brazil, and Argentina, but the name may have been applied to more than one species. Its specific habitat is unresolved. Shaded river or creek habitats favored by relatives should not be presented as confirmed for this fish.
Aquarium setup
Provide a footprint around 120 × 45 cm or larger for one specimen. Roots, branches, tall plants, floating cover, and a dark bottom offer shelter that can reduce nervousness compared with a completely exposed setup.
Keep water exceptionally clean with moderate circulation. Direct external-filter or sump returns along the aquarium, gently disturbing the surface. Extra pumps are not necessarily needed when the arrangement is effective. Replace up to approximately half the water weekly. External heating or a strong heater guard reduces damage to equipment.
Diet & feeding
Fins and smaller fishes are probable wild foods; consumption of fruits or seeds is unconfirmed. Most individuals can gradually accept nonliving food, although large or newly transported specimens may initially refuse offerings.
Juveniles can receive worms, brine shrimp, and chopped shrimp. Adults take suitably sized shellfish, shrimp, fish flesh, squid, and earthworms. Two or three meals weekly provide a reference after maturity. Avoid large quantities of terrestrial meat and unnecessary feeder fish with their disease risks.
Behaviour & compatibility
Other fishes are unsuitable companions, and it is not naturally social. Fighting between conspecifics may persist until only one survives. Temporary coexistence among juveniles should not be treated as evidence for a stable adult group.
Notes
This species belongs to a difficult set of similar-looking piranhas whose separation has often depended on locality. Reliable identity may need evidence beyond an ordinary photograph. Different commercial appearances should not automatically be equated with separate biological species.
来源
- https://www.seriouslyfish.com/species/serrasalmus-serrulatus(抓取于 2026-10-10)
serrasalmus-serrulatus · 文件: data/species/serrasalmus-serrulatus.md · 状态: 草稿