Arapaima vs Yellowfin Tuna

Arapaima gigas との比較 Thunnus albacares

Taxonomy & Classification

属性	Arapaima	Yellowfin Tuna
学名	Arapaima gigas	Thunnus albacares
目	Osteoglossiformes	Scombriformes
科	Arapaimidae	Scombridae
Conservation Status	Data Deficient	Least Concern

Physical Traits

属性	Arapaima	Yellowfin Tuna
最大体長	450.0 cm	239.0 cm
最大体重	200.0 kg	200.0 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 metallic blue-black back contrasting with a silver-white belly; a golden-yellow lateral band runs mid-body; dorsal, anal, and finlets are bright canary yellow with black edges.

Habitat & Environment

属性	Arapaima	Yellowfin Tuna
水質タイプ	Freshwater	Saltwater
生息水深	—	1-1602m
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, ranging across the Atlantic, Indian, and Pacific oceans between roughly 40°N and 35°S. Aggregates around seamounts, fish aggregating devices, and thermocline boundaries in pelagic …
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. …	Pelagic, estuaries

釣り情報

属性	Arapaima	Yellowfin Tuna
ゲームフィッシュ	はい	はい
ファイト評価	10/10	9/10
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.

Yellowfin Tuna

Lean, dense flesh with a clean, meaty flavor; prized for sashimi and poke. Excellent seared rare, grilled as steaks, or served raw; one of the most commercially valued tunas.

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.

Yellowfin Tuna

The yellowfin tuna is a pelagic predator found in tropical and subtropical oceans worldwide. Capable of speeds exceeding 75 km/h, it is prized both as a sport fish and for its high-quality sashimi-grade flesh.