A1 Journal article (refereed)
Lake browning impacts community structure and essential fatty acid content of littoral invertebrates in boreal lakes (2022)
Kesti, P., Hiltunen, M., Strandberg, U., Vesterinen, J., Taipale, S., & Kankaala, P. (2022). Lake browning impacts community structure and essential fatty acid content of littoral invertebrates in boreal lakes. Hydrobiologia, 849(4), 967-984. https://doi.org/10.1007/s10750-021-04760-1
JYU authors or editors
Publication details
All authors or editors: Kesti, Petri; Hiltunen, Minna; Strandberg, Ursula; Vesterinen, Jussi; Taipale, Sami; Kankaala, Paula
Journal or series: Hydrobiologia
ISSN: 0018-8158
eISSN: 1573-5117
Publication year: 2022
Publication date: 22/11/2021
Volume: 849
Issue number: 4
Pages range: 967-984
Publisher: Springer
Publication country: Netherlands
Publication language: English
DOI: https://doi.org/10.1007/s10750-021-04760-1
Publication open access: Openly available
Publication channel open access: Partially open access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78821
Abstract
Many lakes in the northern hemisphere are browning due to increasing concentrations of terrestrial dissolved organic carbon (DOC). The consequences of lake browning to littoral invertebrates, however, are not fully understood. We analyzed community structure and fatty acid (FA) profiles of littoral invertebrates in humic (DOC-rich) and clear-water lakes in Eastern Finland. We found higher abundance of chironomids (Diptera: Chironomidae) in humic compared to clear-water lakes, whereas stoneflies (Plecoptera) and mayflies (Ephemeroptera: Baetidae) were more abundant in clear-water lakes. Taxon explained 65% of the differences in the FA composition of littoral invertebrates. However, the proportion and content of polyunsaturated FAs of several taxa were significantly higher in clear-water lakes compared to humic lakes. Our results reveal differences in both community structure and nutritional quality of littoral invertebrates for fish between humic and clear-water lakes.
Keywords: lakes; dissolved organic carbon; organic material; zoobenthos; biotic communities; invertebrates; Isopoda; Chironomidae; nutrients (animals and humans); fatty acids
Free keywords: polyunsaturated fatty acids; benthic invertebrates; terrestrial organic matter; Asellus aquaticus; Chironomidae
Contributing organizations
Ministry reporting: Yes
VIRTA submission year: 2022
JUFO rating: 1
