Discus vs قشر البياض
Symphysodon discus مقارنةً بـ Sander lucioperca
Taxonomy & Classification
| السمة | Discus | قشر البياض |
|---|---|---|
| الاسم العلمي | Symphysodon discus | Sander lucioperca |
| الرتبة | Cichliformes | Perciformes |
| الفصيلة | Cichlidae | Percidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| السمة | Discus | قشر البياض |
|---|---|---|
| الطول الأقصى | 20,0 cm | 130,0 cm |
| الوزن الأقصى | 0,25 kg | 20,0 kg |
| اللون | 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. | Greenish-gray to olive body with 8–10 dark olive-brown vertical bars or saddle blotches; flanks finely mottled; belly whitish; first dorsal fin with dark-spotted rays; large glassy eyes adapted for low light. |
Habitat & Environment
| السمة | Discus | قشر البياض |
|---|---|---|
| نوع الماء | Freshwater | Brackish |
| نطاق العمق | — | 2-30m |
| النطاق الجغرافي | 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 … | Native to river systems and large lakes of northern and central Europe and western Asia, including the Volga, Danube, Rhine, and Baltic Sea drainages. Tolerates … |
| الموطن | 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. … | Estuaries |
Aquarium Suitability
| السمة | Discus | قشر البياض |
|---|---|---|
| الحد الأدنى لحجم الحوض | 250 L | — |
| درجة الحرارة | 26-30 | — |
| نطاق الرقم الهيدروجيني | 5.0-7.0 | — |
| مستوى الرعاية | Difficult | — |
| المزاج | Peaceful | — |
معلومات الصيد
| السمة | Discus | قشر البياض |
|---|---|---|
| أسماك الصيد الرياضي | لا | نعم |
| تصنيف المقاومة | — | 6/10 |
| الرقم القياسي العالمي | — | — |
| مستوى الزئبق | — | — |
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.
قشر البياض
Lean, firm white flesh with a delicate, mild flavor and nearly no fat; boneless fillets are easy to work with. The most prized freshwater eating fish in Central and Eastern Europe.
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.
قشر البياض
The zander is the European equivalent of the walleye and one of the most prized freshwater predators in Europe. Its excellent low-light vision makes it a crepuscular hunter. Its delicate white flesh is considered among the finest of freshwater fish.