Research uncovers seasonal food web dynamics in a northern humified lake, indicating significant environmental influences.
Key Points
This research aims to analyze the structure of food chains in a northern humified lake by identifying carbon sources in different trophic groups across seasons.
Conducted isotopic analysis of stable carbon (δ13C) and nitrogen (δ15N) isotopes in consumer and producer tissues.
Studied different seasons: summer, autumn, winter, and spring of 2019–2020.
Explored the influence of allochthonous organic matter and heterotrophic organisms on trophic dynamics.
Identified significant differences in food web structure between open water and ice-covered periods.
Found low δ13C values in zooplankton and chaoborids, suggesting a crucial role for methane carbon in the food web.
Highlighted seasonal variations in δ15N values and trophic positions for common perch.