Figure 10 from: Pandakov PG, Teofilova TM, Kodzhabashev ND (2020) Status of the burbot (Lota lota L.) in the Lower Danube (Bulgaria) – a species threatened by climate change. ZooKeys 910: 143-161. https://doi.org/10.3897/zookeys.910.47866 - Pandakov, Pencho G. (2020)