艾夫氏企鹅鱼 · Half-striped Penguin Tetra
概要
| 字段 | 值 |
|---|---|
| 类别 | 鱼 |
| 学名 | Thayeria ifati |
| 别名 | 艾夫氏企鵝魚 |
| 分类 | 脂鲤目 Characiformes › 脂鲤科 Characidae › Thayeria |
| 水体 | 淡水 |
| 成体体长 | 5 cm |
| 饲养难度 | 入门 |
| 最小水体 | 68 L |
| 最小缸长 | 60 cm |
| 群居方式 | 群游 |
| 性情 | 温和 |
| 外部数据 | seriouslyfish thayeria-ifati;fishbase 28001 |
| 原产地 | 法属圭亚那 |
水质参数
| 参数 | 耐受范围 | 最适范围 | 单位 |
|---|---|---|---|
| 水温 | 23–28 | — | °C |
| 总硬度 | 0–15 | — | dGH |
概述
艾夫氏企鹅鱼（Thayeria ifati）在企鹅鱼属中较少见于贸易，同样具有头部向上倾斜的游姿。状态良好时背鳍和臀鳍尖端呈红色，尾鳍边缘带琥珀色，适合在有遮蔽的同种群体中观察。
分布与栖息地
看来是法属圭亚那马罗尼河与阿普鲁阿格河的特有种，过去巴西和圭亚那的记录被认定为误鉴。采集地点包括河流、溪流、沟渠、池塘及小湖泊，底质从有机碎屑到沙石均有；这些地点都显示它偏好较平静的区域。
饲养环境
约 60 × 38 × 30 cm、68 L 的缸可供小群使用，更大缸养更多个体更理想。宜采用暗色底床、浓密水草、木根与枝条，配置浮水植物提供遮阴。另一选择是沙底、沉木和落叶的自然式布置，使用柔和灯光和耐阴植物。维持良好水质，并保留较平静的活动区域。
食性与喂食
野外可能取食小昆虫、蠕虫、甲壳动物和其他浮游动物。缸中宜规律提供摇蚊幼虫、水蚤、丰年虾等小型活饵或冷冻饵，也可尝试适口的薄片与颗粒饲料。
习性与混养
性情温和，难与大鱼或活动过猛的同伴竞争。可选温和的小型脂鲤、铅笔鱼、小型鲶鱼或相容的小型慈鲷。至少养 6 条，以 10 条以上为佳；同伴足够时互动多集中于群内，也有助于限制潜在咬鳍行为。
雌雄区分
成年雌鱼可能腹部更圆、颜色略淡，但不宜仅凭这些差别作绝对判断。
繁殖
尚无成功人工繁殖的确认记录。繁殖策略可能与搏氏企鹅鱼（Thayeria boehlkei）接近，这一推测不能代替本种经过验证的繁殖流程。
补充说明
在尾鳍下叶上，黑纹只占其较上方的部分；向身体前方延伸时会越过侧线并超过背鳍位置，轮廓比 Thayeria obliqua 更清晰。搏氏企鹅鱼的粗黑带则一路延伸到鳃盖，可与本种区分。
English
Overview
Thayeria ifati, the half-striped penguin tetra, is seldom available compared with its relatives. It shares their characteristic head-up swimming posture. Fish in good condition develop red dorsal- and anal-fin tips and amber tail margins, best observed in a sheltered group setting.
Distribution & habitat
It appears restricted to the Maroni and Approuague rivers in French Guiana. Earlier records from Brazil and Guyana were misidentifications. Collection sites include rivers, streams, creeks, ponds, and small lakes, with substrates ranging from organic debris to sand and stones. A preference for quieter areas was apparent across these different habitats.
Aquarium setup
An aquarium around 60 × 38 × 30 cm, approximately 68 liters, suits a small group. More fish in a larger aquarium is preferable. Dark substrate, dense plants, roots, and branches work well, with floating plants for shade. Sand, wood, and leaf litter offer another natural-style layout under subdued light, with shade-tolerant plants if desired. Maintain water quality and provide calm areas.
Diet & feeding
Wild fish probably eat small insects, worms, crustaceans, and other zooplankton. Offer regular small live or frozen foods such as bloodworms, Daphnia, and Artemia. Appropriately sized flakes and granules can also be tried.
Behaviour & compatibility
This peaceful species does not compete well with much larger or overly boisterous fishes. Suitable partners include gentle small tetras, pencilfishes, small catfishes, and compatible dwarf cichlids. Keep at least six individuals, preferably ten or more. Adequate numbers focus interactions within the group and help limit potential fin-nipping.
Sexual dimorphism
Mature females may have rounder abdomens and slightly weaker colors. These differences should not be treated as an infallible sexing method.
Breeding
Successful captive breeding has not been confirmed. Its strategy may resemble that of Thayeria boehlkei, but that possibility does not establish a tested breeding procedure for this species.
Notes
On the lower tail lobe, the dark marking occupies only the upper portion. Its forward extension rises above the lateral line and continues beyond the dorsal-fin position, with a clearer outline than in Thayeria obliqua. The broad stripe of T. boehlkei continues all the way to the gill cover, providing another useful distinction.
来源
- https://www.seriouslyfish.com/species/thayeria-ifati(抓取于 2026-10-10)
thayeria-ifati · 文件: data/species/thayeria-ifati.md · 状态: 草稿