Discus vs Yellowfin Tuna

Symphysodon discus との比較 Thunnus albacares

Taxonomy & Classification

属性	Discus	Yellowfin Tuna
学名	Symphysodon discus	Thunnus albacares
目	Cichliformes	Scombriformes
科	Cichlidae	Scombridae
Conservation Status	Least Concern	Least Concern

Physical Traits

属性	Discus	Yellowfin Tuna
最大体長	20.0 cm	239.0 cm
最大体重	0.25 kg	200.0 kg
体色	Deep-bodied disc shape with vibrant turquoise-blue wavy horizontal lines over a reddish-brown to orange-brown base; fins edged in vivid blue with red striping; wild forms show 9 dark vertical bars.	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	Discus	Yellowfin Tuna
水質タイプ	Freshwater	Saltwater
生息水深	—	1-1602m
分布域	Restricted to the central Amazon River basin in Brazil, particularly around the confluence of the Rio Negro and Rio Solimões. Prefers warm, soft, highly acidic …	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	Warm, blackwater rivers of the Amazon basin, particularly the Rio Negro and tributaries. Prefers soft, acidic water (pH 4.5-6.5, 26-31°C) with driftwood and minimal current. …	Pelagic, estuaries

Aquarium Suitability

属性	Discus	Yellowfin Tuna
最小水槽サイズ	250 L	—
水温	26-30	—
pH 範囲	5.0-7.0	—
飼育難易度	Difficult	—
気性	Peaceful	—

釣り情報

属性	Discus	Yellowfin Tuna
ゲームフィッシュ	いいえ	はい
ファイト評価	—	9/10
世界記録	—	—
水銀含有量	—	—

Cuisine & Edibility

Discus

Not consumed — a prized ornamental aquarium fish known as the 'king of the aquarium' for its disc-shaped body and brilliant colors.

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

Discus

The discus is often called the 'King of the Aquarium' for its disc-shaped body and stunning color patterns. Native to the Amazon floodplains, it requires warm, soft, acidic water and feeds its fry with a mucus secretion from its skin.

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.