Arapaima vs Great Hammerhead Shark

Arapaima gigas 与之比较 Sphyrna mokarran

Taxonomy & Classification

属性	Arapaima	Great Hammerhead Shark
学名	Arapaima gigas	Sphyrna mokarran
目	Osteoglossiformes	Carcharhiniformes
科	Arapaimidae	Sphyrnidae
Conservation Status	Data Deficient	Critically Endangered

Physical Traits

属性	Arapaima	Great Hammerhead Shark
最大体长	450.0 cm	610.0 cm
最大体重	200.0 kg	580.0 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.	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

属性	Arapaima	Great Hammerhead Shark
水质类型	Freshwater	Saltwater
栖息水深	—	1-300m
地理分布	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 …
栖息地	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. …	Neritic

钓鱼信息

属性	Arapaima	Great Hammerhead Shark
游钓鱼种	是	否
搏鱼评级	10/10	—
世界纪录	—	—
汞含量	—	—

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.

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.