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Q
4
Science
4
republic of karelia
2
abiotic factors
1
aquatic ecosystems
1
atlantic salmon
1
biological indicators
1
commercial fish farming
1
community of aquatic organisms
1
competition
1
distribution
1
economic use
1
eutrophication
1
fish fauna
1
ichthyofauna
1
industrial pollution
1
invertebrate drift
1
lake
1
lake ecosystems
1
lifestyle
1
population
1
predation
1
rheophilic fish species
1
roach
1
spatial niche
1
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