Wels Catfish vs Zebra Danio
Silurus glanis مقارنةً بـ Danio rerio
Taxonomy & Classification
| السمة | Wels Catfish | Zebra Danio |
|---|---|---|
| الاسم العلمي | Silurus glanis | Danio rerio |
| الرتبة | Siluriformes | Cypriniformes |
| الفصيلة | Siluridae | Danionidae |
| Conservation Status | Least Concern | Least Concern |
Physical Traits
| السمة | Wels Catfish | Zebra Danio |
|---|---|---|
| الطول الأقصى | 500,0 cm | 5,0 cm |
| الوزن الأقصى | 300,0 kg | 0,001 kg |
| اللون | Dark olive-green to slate-gray back with irregular mottled marbling of darker blotches; flanks grade to olive-yellow; scaleless smooth skin; belly pale cream to yellowish-white; head broad and flat. | Silver to pale gold body with five continuous horizontal royal-blue stripes running from gill to tail tip, including through the fins; belly silvery-white; fins clear with blue-gold striping. |
Habitat & Environment
| السمة | Wels Catfish | Zebra Danio |
|---|---|---|
| نوع الماء | Brackish | Freshwater |
| نطاق العمق | 0-30m | — |
| النطاق الجغرافي | Native to large river systems and lakes of central and eastern Europe from the Rhine basin east to the Caspian and Aral sea drainages. Introduced … | Native to the Ganges and Brahmaputra river basins of Bangladesh, India, Nepal, and Myanmar. Inhabits fast-flowing hill streams, rice paddies, and shallow ponds across the … |
| الموطن | Large rivers, lakes, and reservoirs across Europe and Asia (Volga, Danube, Rhine, Ob). Inhabits deep, slow-moving freshwater with soft substrates. Tolerates turbid water (15-25°C). Highly … | Fast-flowing, clear mountain streams of the Ganges-Brahmaputra region, India and Bangladesh. Clean, well-oxygenated, shallow water with sandy and gravelly substrate (18-26°C). Lab model organism. |
Aquarium Suitability
| السمة | Wels Catfish | Zebra Danio |
|---|---|---|
| الحد الأدنى لحجم الحوض | — | 40 L |
| درجة الحرارة | — | 18-24 |
| نطاق الرقم الهيدروجيني | — | 6.0-8.0 |
| مستوى الرعاية | — | Easy |
| المزاج | — | Peaceful |
معلومات الصيد
| السمة | Wels Catfish | Zebra Danio |
|---|---|---|
| أسماك الصيد الرياضي | نعم | لا |
| تصنيف المقاومة | 9/10 | — |
| الرقم القياسي العالمي | — | — |
| مستوى الزئبق | — | — |
Cuisine & Edibility
Wels Catfish
Fatty, soft flesh with a mild, slightly sweet flavor; quality improves from cold, clean water fish. Popular in Central European cuisines — commonly smoked, fried, or braised with vegetables.
Zebra Danio
Not consumed — a hardy ornamental aquarium fish notable for its horizontal blue-silver stripes and active schooling behavior; also a widely used laboratory model organism.
Species Overview
Wels Catfish
The wels catfish is the largest freshwater fish in Europe, capable of exceeding 5 meters. Found in large rivers and lakes across the continent, it has been documented beaching itself to catch pigeons. It can live over 80 years.
Zebra Danio
The zebrafish is a small cyprinid native to South Asia's freshwater streams. Its distinctive blue-and-gold horizontal stripes and hardy nature make it a popular aquarium fish. It is also the most widely used vertebrate model organism in genetic research.