Arapaima vs Zebra Danio
Arapaima gigas 비교 대상 Danio rerio
Taxonomy & Classification
| 속성 | Arapaima | Zebra Danio |
|---|---|---|
| 학명 | Arapaima gigas | Danio rerio |
| 목(目) | Osteoglossiformes | Cypriniformes |
| 과(科) | Arapaimidae | Danionidae |
| Conservation Status | Data Deficient | Least Concern |
Physical Traits
| 속성 | Arapaima | Zebra Danio |
|---|---|---|
| 최대 크기 | 450.0 cm | 5.0 cm |
| 최대 체중 | 200.0 kg | 0.001 kg |
| 체색 | Dark olive-gray to grayish-black back with large scales that become vivid red-orange with black borders on the posterior flanks; belly pale cream; caudal fin reddish and rounded. | Silver to pale gold body with five continuous horizontal royal-blue stripes running from gill to tail tip, including through the fins; belly silvery-white; fins clear with blue-gold striping. |
Habitat & Environment
| 속성 | Arapaima | Zebra Danio |
|---|---|---|
| 수질 유형 | Freshwater | Freshwater |
| 서식 수심 | — | — |
| 분포 지역 | Restricted to the Amazon River basin in Brazil, Peru, Guyana, and Bolivia. Inhabits flooded várzea lakes, oxbows, and large river channels; surfaces frequently to breathe … | Native to the Ganges and Brahmaputra river basins of Bangladesh, India, Nepal, and Myanmar. Inhabits fast-flowing hill streams, rice paddies, and shallow ponds across the … |
| 서식지 | Floodplain lakes (várzea) and large river channels of the Amazon basin. Slow-moving, shallow, warm freshwater (26-30°C). An obligate air-breather; rises to surface to gulp air. … | Fast-flowing, clear mountain streams of the Ganges-Brahmaputra region, India and Bangladesh. Clean, well-oxygenated, shallow water with sandy and gravelly substrate (18-26°C). Lab model organism. |
Aquarium Suitability
| 속성 | Arapaima | Zebra Danio |
|---|---|---|
| 최소 수조 크기 | — | 40 L |
| 수온 | — | 18-24 |
| pH 범위 | — | 6.0-8.0 |
| 사육 난이도 | — | Easy |
| 성격 | — | Peaceful |
낚시 정보
| 속성 | Arapaima | Zebra Danio |
|---|---|---|
| 낚시 대상어 | 예 | 아니오 |
| 파이팅 등급 | 10/10 | — |
| 세계 기록 | — | — |
| 수은 함량 | — | — |
Cuisine & Edibility
Arapaima
Large, firm white fillets with a mild, clean flavor and low fat; historically a staple protein in Amazonian communities. Often salted and dried; sustainable harvest is tightly regulated.
Zebra Danio
Not consumed — a hardy ornamental aquarium fish notable for its horizontal blue-silver stripes and active schooling behavior; also a widely used laboratory model organism.
Species Overview
Arapaima
The arapaima is one of the largest freshwater fish in the world, reaching up to 4.5 meters. An obligate air-breather, it must surface every 10-20 minutes to gulp air. Its tongue is bony and used to crush prey against the roof of its mouth.
Zebra Danio
The zebrafish is a small cyprinid native to South Asia's freshwater streams. Its distinctive blue-and-gold horizontal stripes and hardy nature make it a popular aquarium fish. It is also the most widely used vertebrate model organism in genetic research.