Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods
Abstract Marine copepods, the most abundant animals in the global ocean, imprint their surrounding waters with chemical cues, called copepodamides. Copepodamides induce defensive traits such as toxin production, bioluminescence, and colony size plasticity in a variety of marine phytoplankton. The ro...
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Nature Portfolio
2024-02-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-53247-1 |
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| author | Sina Arnoldt Milad Pourdanandeh Ingvar Spikkeland Mats X. Andersson Erik Selander |
| author_facet | Sina Arnoldt Milad Pourdanandeh Ingvar Spikkeland Mats X. Andersson Erik Selander |
| author_sort | Sina Arnoldt |
| collection | DOAJ |
| description | Abstract Marine copepods, the most abundant animals in the global ocean, imprint their surrounding waters with chemical cues, called copepodamides. Copepodamides induce defensive traits such as toxin production, bioluminescence, and colony size plasticity in a variety of marine phytoplankton. The role of copepodamides in freshwater ecosystems is, however, unknown. Here we report the consistent presence of copepodamides in copepods from six Swedish freshwater lakes. Copepodamide concentrations in freshwater copepods are similar to those of marine copepods, around 0.1 ppt of dry mass in millimetre sized individuals. The composition substantially overlaps with marine copepodamides but is also distinctly different. Marine copepods commonly contain both subgroups of copepodamides, the copepodamides (CA) and the dihydro-copepodamides (dhCA), whereas freshwater copepods are dominated by the dhCAs. Taxonomic groups had consistent copepodamide profiles across sampling sites and timepoints, supporting the presence of species-specific copepodamide signatures. We describe 10 new copepodamide structures, four of which were found exclusively in freshwater copepods. The presence of copepodamides in limnic copepods also warrants studies into their potential function as predator alarm cues in freshwater systems. |
| format | Article |
| id | doaj-art-d8f20bc0ce444d929cb5200c5ee49015 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-d8f20bc0ce444d929cb5200c5ee490152025-01-12T12:24:58ZengNature PortfolioScientific Reports2045-23222024-02-011411910.1038/s41598-024-53247-1Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepodsSina Arnoldt0Milad Pourdanandeh1Ingvar Spikkeland2Mats X. Andersson3Erik Selander4Department of Marine Sciences, University of GothenburgDepartment of Marine Sciences, University of GothenburgDepartment of Haldenvassdragets Kanalmuseum, Østfold Museum FoundationDepartment of Biological and Environmental Sciences, University of GothenburgDepartment of Biology-Aquatic Ecology, Lund UniversityAbstract Marine copepods, the most abundant animals in the global ocean, imprint their surrounding waters with chemical cues, called copepodamides. Copepodamides induce defensive traits such as toxin production, bioluminescence, and colony size plasticity in a variety of marine phytoplankton. The role of copepodamides in freshwater ecosystems is, however, unknown. Here we report the consistent presence of copepodamides in copepods from six Swedish freshwater lakes. Copepodamide concentrations in freshwater copepods are similar to those of marine copepods, around 0.1 ppt of dry mass in millimetre sized individuals. The composition substantially overlaps with marine copepodamides but is also distinctly different. Marine copepods commonly contain both subgroups of copepodamides, the copepodamides (CA) and the dihydro-copepodamides (dhCA), whereas freshwater copepods are dominated by the dhCAs. Taxonomic groups had consistent copepodamide profiles across sampling sites and timepoints, supporting the presence of species-specific copepodamide signatures. We describe 10 new copepodamide structures, four of which were found exclusively in freshwater copepods. The presence of copepodamides in limnic copepods also warrants studies into their potential function as predator alarm cues in freshwater systems.https://doi.org/10.1038/s41598-024-53247-1 |
| spellingShingle | Sina Arnoldt Milad Pourdanandeh Ingvar Spikkeland Mats X. Andersson Erik Selander Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods Scientific Reports |
| title | Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| title_full | Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| title_fullStr | Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| title_full_unstemmed | Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| title_short | Mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| title_sort | mass spectroscopy reveals compositional differences in copepodamides from limnic and marine copepods |
| url | https://doi.org/10.1038/s41598-024-53247-1 |
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