Fig. 2: Development of invertebrate indicators of deepwater oxygen availability in Bichelsee and vegetation around the lake during the past 13,000 years. | Communications Earth & Environment

Fig. 2: Development of invertebrate indicators of deepwater oxygen availability in Bichelsee and vegetation around the lake during the past 13,000 years.

From: Dynamic deepwater invertebrate populations challenge the concept of oxygen-rich reference conditions for European lakes

Fig. 2: Development of invertebrate indicators of deepwater oxygen availability in Bichelsee and vegetation around the lake during the past 13,000 years.The alternative text for this image may have been generated using AI.

A Percentages of chironomids relative to all aquatic invertebrate remains. B Log-transformed chironomid influx at high resolution (grey) and with a 9-sample running average (black). C Scores of the first axis of a CCA calculated as in ref. 21 in orange and log-transformed Chaoborus-to-chironomid ratio in blue24. D Rates of change between the chironomid samples. E Selected tree pollen percentages (Alnus glutinosa-type, Fagus sylvatica). The vertical shading shows the three major phases of oxygen availability in Bichelsee (oxygen-rich, hypoxic and variable hypoxic).

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