Discus vs Whale Shark
Symphysodon discus との比較 Rhincodon typus
Taxonomy & Classification
| 属性 | Discus | Whale Shark |
|---|---|---|
| 学名 | Symphysodon discus | Rhincodon typus |
| 目 | Cichliformes | Orectolobiformes |
| 科 | Cichlidae | Rhincodontidae |
| Conservation Status | Least Concern | Endangered |
Physical Traits
| 属性 | Discus | Whale Shark |
|---|---|---|
| 最大体長 | 20.0 cm | 1800.0 cm |
| 最大体重 | 0.25 kg | 21500.0 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 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 | Discus | Whale Shark |
|---|---|---|
| 水質タイプ | Freshwater | Saltwater |
| 生息水深 | — | 0-1928m |
| 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 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 | 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. … | Neritic, coral reefs |
Aquarium Suitability
| 属性 | Discus | Whale Shark |
|---|---|---|
| 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 | — |
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.
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
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.
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.