Arapaima vs Great Hammerhead Shark
Arapaima gigas so sánh với Sphyrna mokarran
Taxonomy & Classification
| Thuộc tính | Arapaima | Great Hammerhead Shark |
|---|---|---|
| Tên khoa học | Arapaima gigas | Sphyrna mokarran |
| Bộ | Osteoglossiformes | Carcharhiniformes |
| Họ | Arapaimidae | Sphyrnidae |
| Conservation Status | Data Deficient | Critically Endangered |
Physical Traits
| Thuộc tính | Arapaima | Great Hammerhead Shark |
|---|---|---|
| Chiều dài tối đa | 450,0 cm | 610,0 cm |
| Cân nặng tối đa | 200,0 kg | 580,0 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. | Brownish-gray to olive-gray dorsal surface with a clean countershaded white belly; no distinct patterning; first dorsal fin is tall and strongly falcate; pelvic fin tips dusky. |
Habitat & Environment
| Thuộc tính | Arapaima | Great Hammerhead Shark |
|---|---|---|
| Loại nước | Freshwater | Saltwater |
| Phạm vi độ sâu | — | 1-300m |
| 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 … | Circumtropical in warm coastal and offshore waters of the Atlantic, Indian, and Pacific oceans. Concentrates around coral reefs, continental shelf edges, and deep-water drop-offs; population … |
| 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 |
Thông tin câu cá
| Thuộc tính | Arapaima | Great Hammerhead Shark |
|---|---|---|
| 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.
Great Hammerhead Shark
Critically Endangered — consumption strongly discouraged. Fins are historically traded but the species faces severe population decline; eating this fish is ecologically irresponsible.
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.
Great Hammerhead Shark
The great hammerhead is the largest of the nine hammerhead shark species. Its distinctive cephalofoil (hammer-shaped head) houses an array of electroreceptors that allow it to detect stingrays buried beneath the sand.