Chinese crucian carp (Carassius auratus)- one of the most famous freshwater fish, which is the ancestor of ornamental goldfish. This species has a high adaptability to various living conditions, hardiness and a wide distribution range.
What makes Chinese crucian carp unique?
✅ Ancestor of goldfish - the most popular aquarium fish in the world
✅ Withstands difficult environmental conditions - low temperature, lack of oxygen
✅ It has the ability to reproduce without the participation of males (gynogenesis)
✅ One of the main objects of fishing and aquaculture
In this article, we will take a closer look at appearance, habitat, nutrition, reproduction, natural enemies, and human influence on the Chinese crucian carp population.

Scientific classification
🔬 Classification of Chinese crucian carp:
✔ The Kingdom: Animals (Animalia)
✔ Type: Chordal (Chordata)
✔ Class: Lucheperi pisces (Actinopterygii)
✔ Row: Carp-like animals (Cypriniformes)
✔ Family: Carp (Cyprinidae)
✔ Gender: Crucian carp (Carassius)
✔ View: Chinese crucian carp (Carassius auratus)
📌 Interesting!
Chinese crucian carp-the closest relative common carp (Carassius carassius) and goldfishwhich are its domesticated form.
Appearance and anatomy
, Main Features:
✔ Body length: 10-30 cm (sometimes up to 50 cm)
✔ Weight: 300-1000 g (in some cases up to 3 kg)
✔ Life span: 8-12 years old (in nature), up to 20 years old (in captivity)
🔹 Appearance:
✅ Rounded, slightly flattened laterally body
✅ Large scales that can be silver, golden, or dark in color
✅ Small forward-facing mouth, no whiskers
✅ Long dorsal fin and forked tail
📌 Interesting!
Domesticated forms of Chinese crucian carp have a variety of colors, including red, white, black, yellow, and orange.
Habitat and distribution
🌍 Where does the Chinese crucian carp live?
This type of fish is common in freshwater reservoirs East Asia, Europe, and other regions where it was artificially imported.
🔹 Typical habitats:
✅ Lakes, ponds, floodplains
Slow-moving rivers with muddy bottoms
✅ Artificial reservoirs (ponds, reservoirs)
📌 Interesting!
Chinese crucian carp is capable of survive the freezing of water bodies, falling into a state of suspended animation.
Lifestyle and behavior
🔹 Basic behavioral traits:
✔ Hardy and unpretentious to environmental conditions
✔ It leads a bottom-dwelling lifestyle, looking for food in the mud
✔ Can withstand low oxygen content in water
✔ It is prone to active reproduction in the warm season
📌 Interesting!
Chinese Crucian carp can survive in drying water bodiesburrowing in the mud and waiting for the water to return.

Food
Chinese Crucian carp – omnivorous fish, which consumes both plant and animal food.
🔹 What does he eat?
✅ Algae and plant particles
Мелкие Small invertebrates (worms, crustaceans, insects)
✅ Organic residues and detritus
📌 Interesting!
In pond farms of crucian carp they are easily adapted to mixed feed and other artificial feeds.
Reproduction and development
🔹 Features of reproduction:
✅ Spawning occurs in spring at a water temperature of 15-20°C
✅ The female lays up to 300,000 eggs
✅ Fry grow quickly and reach sexual maturity in 1-2 years
📌 Interesting!
Chinese crucian carp can reproduce without the participation of males (gynogenesis), fertilizing eggs with sperm from other fish (for example, carp or tench).
Natural enemies and threats
🔹 Natural enemies:
Hut predatory fish (pike, catfish, perch )
Birds of prey (herons, cormorants)
Ssav mammals (otters, raccoons)
🔹 Threats from humans:
⚠ Pollution of water bodies and destruction of natural habitats
⚠ Overfishing in some regions
⚠ Compete with other fish for food and territory
📌 Interesting!
Due to its high endurance, Chinese crucian carp can displace native fish specieswhich leads to environmental problems.
Chinese Crucian carp and man
🔹 Commercial value:
✅ One of the main fish in freshwater fishing
✅ Popular aquaculture facility
✅ It is the ancestor of ornamental goldfish
📌 Interesting!
The goldfish were bred in China more than 1000 years ago from one of the forms of Chinese crucian carp.

Interesting facts about Chinese crucian carp
✔ Can survive in water with very low oxygen levels
✔ It is one of the hardiest freshwater fish species.
✔ Easily adapts to artificial cultivation
✔ It can remain active even in winter
Conclusion
Chinese crucian carp – hardy, unpretentious fish that plays an important role in fisheries and aquaculture. His ability to adapt to different environments has made him distributed all over the world, and its decorative shape (goldfish) has become a symbol of the aquarium hobby.
📢 We will protect the water bodies so that Chinese crucian carp and other fish can live in a clean environment! 🐟💧