Amur Carp (Cyprinus rubrofuscus) lives in freshwater lakes across East Asia. It feeds on phytoplankton and zooplankton. Its conservation status is Least Concern.
Fascinating facts about the Amur Carp
- The Amur carp is a wild ancestor of the ornamental koi that grace garden ponds. Genetic studies show that koi were artificially selected from both the Amur carp and the native Japanese carp, giving the colourful varieties part of their lineage. Because the Amur was once treated as a subspecies of common carp, some older literature still lists koi under C.
- The mitochondrial genome of the Amur carp spans exactly 16,582 base pairs, providing a compact genetic blueprint. Within this DNA it encodes 13 protein-coding genes, 22 transfer-RNA genes and two ribosomal-RNA genes, covering the core functions needed for cellular respiration. Phylogenetic work using this complete mitogenome allowed researchers to build a maximum-likelihood tree that clarifies the species' placement among other Cyprinus.
- A key diagnostic feature of the Amur carp is its reduced lateral-line scale count, typically only 29 to 33 scales (with an extra 2-3 possible). In contrast, the common carp carries 33 to 37 scales along the same line, making the lower number a reliable identifier. This difference, together with a higher count of dorsal fin rays, lets ichthyologists separate the two even when colouration overlaps.
- In the 1930s the Soviet Union launched a breeding programme that crossed Amur carp with several other strains such as Ropsha, Ukrainian and Angelinskii. The aim was to broaden hardiness and expand the growing range by inserting the Amur's cold-tolerance genes. Genetic work later showed those genes resemble ones found in pufferfish and blue tilapia, and the resulting hybrids could survive low temperatures.
- A large-scale evaluation carried out in Kolkata, India compared Amur carp with all other locally farmed Indian carp species across a range of aquaculture environments. The study found the Amur consistently out-grew its rivals, a result attributed to its fast growth and highly adaptable, generalist feeding habits.
Sources
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At a glance
RangeEast Asia
HabitatFreshwater lakes
DietPhytoplankton and zooplankton
About the Amur Carp
In the serene depths of eastern Asia's freshwater lakes and rivers, the Amur Carp glides effortlessly, its bronze-hued scales glistening like polished jewels in the sunlight. With a gentle undulation of its body, it navigates the aquatic world with a quiet confidence, its broad fins propelling it through the water with a soothing rhythm that belies its remarkable adaptability. As it moves, the Amur Carp weaves a subtle spell of resilience, thriving in a wide range of habitats, from slow-moving streams to vast, tranquil reservoirs.
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