Long-term decline of whitefish (Coregonus lavaretus) population in the boreal lake Pyhäjärvi, southwest Finland, relative to simultaneous abiotic and biotic changes

Special issue - Biology and Management of Coregonid Fishes - 2023

Open Access

Fig. 2

Total whitefish population biomass in autumn in 1988–2018. Horizontal lines indicate the average biomass during the period of overfishing of vendace in 1989–1999 (blue), and after the vendace recovery in 2000–2018 (red dashed). The oblique trendline (black) indicates the general declining trend of whitefish biomass. The 95% confidence intervals are shown (dashed curves).

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