Arapaima vs European Sturgeon
Arapaima gigas so sánh với Acipenser sturio
Taxonomy & Classification
| Thuộc tính | Arapaima | European Sturgeon |
|---|---|---|
| Tên khoa học | Arapaima gigas | Acipenser sturio |
| Bộ | Osteoglossiformes | Acipenseriformes |
| Họ | Arapaimidae | Acipenseridae |
| Conservation Status | Data Deficient | Critically Endangered |
Physical Traits
| Thuộc tính | Arapaima | European Sturgeon |
|---|---|---|
| Chiều dài tối đa | 450,0 cm | 600,0 cm |
| Cân nặng tối đa | 200,0 kg | 400,0 kg |
| Màu sắc | 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. | Gray-brown to dark brownish-black back with 5 rows of bony scutes that are yellowish-white; sides pale grayish-brown to whitish; belly creamy-white; thick armored body with a shark-like heterocercal tail. |
Habitat & Environment
| Thuộc tính | Arapaima | European Sturgeon |
|---|---|---|
| Loại nước | Freshwater | Freshwater & Saltwater |
| Phạm vi độ sâu | — | 4-93m |
| Phân bố địa lý | 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 … | Historically ranged across European coastal waters from the North Sea and Baltic to the Mediterranean and Black seas, spawning in major rivers like the Rhine, … |
| Môi trường sống | 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. … | Neritic, estuaries |
Thông tin câu cá
| Thuộc tính | Arapaima | European Sturgeon |
|---|---|---|
| Cá thể thao | Có | Không |
| Xếp hạng chiến đấu | 10/10 | — |
| Kỷ lục thế giới | — | — |
| Hàm lượng thủy ngân | — | — |
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.
European Sturgeon
Critically Endangered — consumption is illegal throughout its range. Historically prized for its delicate flesh and black caviar; now one of the world's most threatened fish 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.
European Sturgeon
The European sturgeon is a critically endangered anadromous fish that can live over 100 years. Once abundant in European rivers, it is now restricted to a small population in the Gironde estuary. Its eggs are harvested as beluga-grade caviar.