Fish species: The crucian carp

Nature Vitalitycross December 9, 2016 0 11
Kroes Carp can occur in many different Dutch water types. Mainly they are found in ponds, lakes, canals and even in small shallow ditches. The crucian carp is a real survivor and can withstand temperatures of 0 to 38 degrees Celsius. The appearance is immediately noticeable due to the high back and the compact body of the species. Kroes Carp have a bronze to copper-like color.
  • Scientific Name: Carassius carassius
  • Dutch name: Crucian carp
  • Family: Cyprinidae

The crucian carp

Kroes Carp can handle free extreme conditions compared with other freshwater fish which we can find in our Dutch waters. The crucian carp, for example, can survive if the oxygen content in the water is zero, or when the water temperatures reach up to 38 degrees Celsius. The crucian carp can survive temperatures of 0 degrees Celsius.


The crucian carp is immediately noticeable when you see this one get. The species has a very high back in proportion to his body. The body of the crucian carp is fairly stocky build with a small head. The crucian carp on his sideline 33 to 36 scales stand. The dorsal fin of the fish is long and convex. The tail fin of the crucian carp is not completed and the root of this is quite high. The anal fin is very short and is slightly rounded.
Kroes Carp have a bronze to copper-like color. From the sidelines to the back of the crucian carp is dark brown. While the sides of the crucian carp lighter in color and more towards the bronze to yellowish glow curtsey. The mouth is terminal. Interestingly, the crucian carp has no barbels, unlike the carp. The crucian carp just like a carp on throat teeth. The crucian carp can be easily confused with the gibel, it also has a fairly stocky build and a very high back.
Other Features
  • Maximum length: 55 cm
  • Average length: 15 to 30 cm long
  • Maximum weight: 5 kg
  • Maximum age: 10 years


The crucian carp is a cold-blooded animal, making the crucian carp eat in the winter hardly to not at all. Kroes Carp can both animal and vegetable foods, and looking mainly for food near the bottom. Animal food of the crucian carp includes: small crustaceans, worms, crustaceans, fish fry, larvae, midge larvae, water fleas and insects. The different types of plant foods is usually eaten in the summer months when plants are very abundant in the waters. Very young frizzy carp feed mainly on zooplankton.

Distribution and habitat

The crucian carp comes in many different water types. The water types can vary from small to large bodies of water and still water to a light flow. Examples include ditches, wells, ponds, lakes, but also the waters where there is something more current, for example, in Limburg, the crucian carp found in several streams and small rivers.
The crucian carp is preferable for shallow areas where large amounts of aquatic plants are found. While the crucian carp in the winter some deeper spots chooses. The bottom of the waters in which the crucian carp is for mostly consists of silt, sand or clay soil with a maximum depth of approximately 3.5 meters.
The crucian carp can use the mud on the bottom of the waters, in order to survive when there is very little oxygen is present in the water. The crucian carp is here completely bury. Even if the winter is longer and colder as normal, the crucian carp will use the mud bottom right.


When the winter is over and the temperatures again be better pull the crucible carp to the shallower parts of the plant rich waters. The shallower areas with large presence of aquatic plants are the spawning grounds for the crucian carp.
Spawning usually takes place at temperatures between 14 and 20 degrees Celsius in the months of May, June and July. One female spawns multiple male specimens. The females lay their eggs, which are then fertilized by the males immediately. The eggs are usually deposited in the vegetation. Kroes Carp can exhibit up to five times a year, spawn or spawning behavior. When the eggs are fertilized and the water temperatures are 18 à 19 degrees, the eggs hatch after about six days off.