Corydoras vs Cá chình Châu Âu
Corydoras paleatus so sánh với Anguilla anguilla
Taxonomy & Classification
| Thuộc tính | Corydoras | Cá chình Châu Âu |
|---|---|---|
| Tên khoa học | Corydoras paleatus | Anguilla anguilla |
| Bộ | Siluriformes | Anguilliformes |
| Họ | Callichthyidae | Anguillidae |
| Conservation Status | Least Concern | Critically Endangered |
Physical Traits
| Thuộc tính | Corydoras | Cá chình Châu Âu |
|---|---|---|
| Chiều dài tối đa | 7,0 cm | 133,0 cm |
| Cân nặng tối đa | 0,005 kg | 6,6 kg |
| Màu sắc | Pale olive-gray to greenish body with irregular dark olive to black marbled blotches and spots; a broad dark blotch at the dorsal fin base; belly is cream to white; fins spotted or barred. | Yellow-olive to olive-brown back and sides in the freshwater 'yellow eel' phase; maturing 'silver eel' phase develops a dark gray-black back with a silvery-white belly and enlarged eyes. |
Habitat & Environment
| Thuộc tính | Corydoras | Cá chình Châu Âu |
|---|---|---|
| Loại nước | Freshwater | Freshwater & Saltwater |
| Phạm vi độ sâu | — | 0-700m |
| Phân bố địa lý | Native to the La Plata River system and coastal rivers of southeastern Brazil, Uruguay, and northeastern Argentina. Inhabits shallow streams, flooded meadows, and sandy-bottomed lagoons … | Spawns in the Sargasso Sea and larvae drift to European and North African coasts on the Gulf Stream. Adults inhabit rivers, lakes, and coastal waters … |
| Môi trường sống | Rivers and streams of the Río de la Plata basin in South America (Brazil, Argentina, Uruguay). Inhabits clear-water streams over sandy and muddy bottoms. Active … | Estuaries |
Aquarium Suitability
| Thuộc tính | Corydoras | Cá chình Châu Âu |
|---|---|---|
| Kích thước bể tối thiểu | 40 L | — |
| Nhiệt độ | 22-26 | — |
| Phạm vi pH | 6.0-8.0 | — |
| Mức độ chăm sóc | Easy | — |
| Tính cách | Peaceful | — |
Thông tin câu cá
| Thuộc tính | Corydoras | Cá chình Châu Âu |
|---|---|---|
| Cá thể thao | Không | Có |
| Xếp hạng chiến đấu | — | — |
| Kỷ lục thế giới | — | — |
| Hàm lượng thủy ngân | — | — |
Cuisine & Edibility
Corydoras
Not consumed — a small ornamental bottom-dwelling catfish beloved for its peaceful temperament and role as a substrate scavenger in community aquariums.
Cá chình Châu Âu
Rich, fatty flesh with a distinctive earthy flavor; classically smoked, jellied (in Britain), or grilled kabayaki-style. Critically Endangered — consumption strongly discouraged; population down 90%.
Species Overview
Corydoras
The peppered corydoras is a peaceful bottom-dwelling catfish native to South American rivers. It uses its barbels to sift through substrate for food and should be kept in groups of six or more. It can gulp atmospheric air in low-oxygen conditions.
Cá chình Châu Âu
The European eel undertakes one of nature's most remarkable migrations, traveling 5,000 km from European rivers to the Sargasso Sea to spawn and die. Despite centuries of study, its breeding grounds were only recently confirmed.