Using nuclear magnetic resonance spectroscopy, the authors studied the polyphosphate seasonality in the topmost sediment layer of three stratified lakes with prolonged anoxic periods during summer stratification. Polyphosphate acted as a temporary phosphorus storage, formed at the beginning of the summer stratification under oxic conditions and released time delayed under anoxic conditions.

This paper identifies the top-50 priority questions for meiofaunal research, highlighting their critical roles in biogeochemical cycles and biodiversity. It calls for a balanced research agenda, international cooperation, and advances in technology to overcome current challenges and unlock meiofauna’s full potential.

Freshwater ecosystems in the Arctic are important sentinels for climate change, but not much is known about the potential for rapid adaptation of their asexually reproducing key zooplankton members. Applying a resurrection ecology approach to an asexual Arctic Daphnia population, the authors provide evidence for a change in thermal and hypoxia tolerance within a decade.