Species learning profile
Common roach
Rutilus rutilus
Common roach (Rutilus rutilus) is a freshwater fish associated with lake habitat in Europe. Its red-orange iris and fins stand out against silver sides.
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At a glance
- পানি
- মিঠা পানি
- Habitat
- হ্রদ
- সর্বোচ্চ দৈর্ঘ্য
- 50 cm
- বিস্তৃতি
- ইউরোপ
- গোত্র
- Leuciscidae
- বর্গ
- Cypriniformes
Observe
How to identify Common roach
- Its red-orange iris and fins stand out against silver sides.
- Guide context: lake habitat in Europe.
- Reported maximum length: 50 cm — up to about the length of a guitar. Maximum is not the same as typical adult size.
Field note: color, size, and markings can change with age, sex, season, depth, and lighting. Use several traits together.
Place and pattern
Where it lives—and how it behaves
Habitat and range
This species is associated with lake habitat across Europe. Temperature, oxygen, depth, and shoreline cover divide a lake into very different living zones.
Behavior
Forms adaptable schools
Food-web connections
What it eats and why it matters
Diet
Plants, insects, and molluscs.
Ecological role
An abundant link between plankton, plants, and predators.
Remember
One fact worth keeping
Common roach প্রায় 50 সেমি পর্যন্ত বড় হয় এবং সাধারণত হ্রদ-এর কাছে থাকে।
Think like a conservationist
A conservation lens
Healthy lake populations depend on suitable temperature and oxygen, clean spawning areas, and balanced harvest and food webs.
This habitat lens is not a current population-status assessment. Status can differ among regions and change as new assessments are published; follow the reference links and local fisheries or wildlife agencies for current decisions.
Recall
Quick knowledge check
Which habitat is most closely associated with Common roach in this guide?
Keep exploring
References and further reading
Fishdle summarizes stable identification and ecology concepts in plain language. Taxonomy and population knowledge continue to change, so use primary assessments and regional authorities for conservation or management decisions.
Make connections