Arapaima vs Whale Shark

Arapaima gigas との比較 Rhincodon typus

Taxonomy & Classification

属性	Arapaima	Whale Shark
学名	Arapaima gigas	Rhincodon typus
目	Osteoglossiformes	Orectolobiformes
科	Arapaimidae	Rhincodontidae
Conservation Status	Data Deficient	Endangered

Physical Traits

属性	Arapaima	Whale Shark
最大体長	450.0 cm	1800.0 cm
最大体重	200.0 kg	21500.0 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.	Dark gray to blue-gray back covered with a distinctive checkerboard grid of pale white or cream spots and transverse stripes; belly white; the unique spot pattern is unique to each individual.

Habitat & Environment

属性	Arapaima	Whale Shark
水質タイプ	Freshwater	Saltwater
生息水深	—	0-1928m
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 …	Pantropical in open oceanic and coastal waters between 30°N and 35°S. Aggregates seasonally at feeding sites including Ningaloo Reef in Western Australia, the Gulf of …
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. …	Neritic, coral reefs

釣り情報

属性	Arapaima	Whale Shark
ゲームフィッシュ	はい	いいえ
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.

Whale Shark

Endangered species — consumption is strongly discouraged and illegal in many countries. Historically consumed in parts of Asia; now internationally protected under CITES Appendix II.

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.

Whale Shark

The whale shark is the largest living fish species, reaching lengths of up to 18 meters. Despite its enormous size, it is a gentle filter feeder that consumes plankton, fish eggs, and small fish by swimming with its wide mouth open.