Arapaima vs Oscar
Arapaima gigas との比較 Astronotus ocellatus
Taxonomy & Classification
| 属性 | Arapaima | Oscar |
|---|---|---|
| 学名 | Arapaima gigas | Astronotus ocellatus |
| 目 | Osteoglossiformes | Cichliformes |
| 科 | Arapaimidae | Cichlidae |
| Conservation Status | Data Deficient | Least Concern |
Physical Traits
| 属性 | Arapaima | Oscar |
|---|---|---|
| 最大体長 | 450.0 cm | 45.0 cm |
| 最大体重 | 200.0 kg | 1.6 kg |
| 体色 | 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. | Dark olive-brown to blackish body with irregular wavy orange-red markings forming a marbled or reticulated pattern; prominent black ocellus with orange ring at the upper tail base. |
Habitat & Environment
| 属性 | Arapaima | Oscar |
|---|---|---|
| 水質タイプ | Freshwater | Freshwater |
| 生息水深 | — | — |
| 分布域 | 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 Amazon and Orinoco river basins in South America, including Peru, Colombia, and Brazil. Inhabits slow, deep, turbid rivers, flooded forests, and large … |
| 生息地 | 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. … | Slow-moving rivers and floodplains of the Amazon and Orinoco basins, South America. Warm, murky water (22-28°C, pH 6-8). Inhabits areas with submerged logs and dense … |
Aquarium Suitability
| 属性 | Arapaima | Oscar |
|---|---|---|
| 最小水槽サイズ | — | 280 L |
| 水温 | — | 22-25 |
| pH 範囲 | — | 6.0-8.0 |
| 飼育難易度 | — | Moderate |
| 気性 | — | Aggressive |
釣り情報
| 属性 | Arapaima | Oscar |
|---|---|---|
| ゲームフィッシュ | はい | はい |
| ファイト評価 | 10/10 | — |
| 世界記録 | — | — |
| 水銀含有量 | — | — |
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.
Oscar
Not consumed — popular ornamental cichlid kept for its bold patterning and personality; occasionally eaten in parts of South America but primarily an aquarium species.
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.
Oscar
The oscar is a large, intelligent cichlid native to the Amazon basin. Known for its dog-like personality, it can recognize its owner and may beg for food. Oscars rearrange their tank decor and require spacious aquariums with robust filtration.