Siberian Taiga River Food Web
Freshwater
Siberia, Russia — Ob, Yenisei, and Lena river basins
Description
The Ob, Yenisei, and Lena river systems drain vast Siberian watersheds through boreal forest into the Arctic Ocean. These rivers support anadromous fish like sturgeon and salmon, and their floodplains create productive oxbow lakes. Spring ice breakup triggers massive flooding that restructures riparian food webs annually.
Trophic Pyramid
Level 5
Decomposers
Aquatic fungi
Chironomid larvae
Bacteria
3 species
Level 4
Tertiary Consumers
White-tailed eagle
Brown bear
2 species
Level 3
Secondary Consumers
Siberian taimen
Pike
Eurasian otter
3 species
Level 2
Primary Consumers
Siberian roach
Caddisfly larvae
Daphnia
3 species
Level 1
Producers
Filamentous algae
Diatoms
Riparian willows
3 species
Apex Predators
Tertiary Consumers
Secondary Consumers
Primary Consumers
Producers
Key Interactions
- Siberian taimen are apex freshwater predators reaching over 1.5 meters in length
- Spring flooding deposits nutrients onto floodplains, boosting terrestrial and aquatic productivity
- Brown bears catch spawning salmon and sturgeon at rapids
- Eurasian otters are indicator species for river ecosystem health