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- W3134655183 abstract "Abstract Fatty acids (FAs) are the main components of lipids in corals. We examined FA profiles from five symbiotic coral species belonging to five different genera ( Acropora , Pavona , Turbinaria , Favites and Platygyra ) and four different families (Acroporidae, Agariciidae, Dendrophyllidae, Faviidae). We separated symbionts from coral host tissue to investigate the interaction of FA between symbionts and host tissue. After separation, we used FA profiles, in particular specific FAs ( e.g. 16:0, 18:0, 18:3n-3, 20:5n-3, 22:6n-3) and their ratios (EPA:DHA, PUFA:SFA) as biomarkers to examine chemotaxonomic indication and trophic level (autotrophy vs. heterotrophy) of each coral species. Gas chromatography-mass spectrometry (GC-MS) was performed to identify and quantify FA. For quantification, the dry weight of total lipids was used to normalize FA concentration (μg mg -1 ). We found that 1) FA profiles and their abundance in coral host tissue and symbionts are distinct (with the exception of autotrophic species) 2) our five different coral species are defined by species-specific FA profiles, 3) certain FAs are useful biomarkers to determine relative trophic strategies ( i.e. autotrophy and/or heterotrophy, 4) the application of FA ratios to define trophic level requires caution in research application and data interpretation. Considering the limitations of FA ratios determined herein, we suggest it to be more appropriate if these FA ratios were only applied to examine response to environmental change within species. Going forward, our study provides important FA baseline data that builds the foundation to future investigations on impacts of environmental changes on nutrition and metabolism in symbiotic corals." @default.
- W3134655183 created "2021-03-15" @default.
- W3134655183 creator A5008245916 @default.
- W3134655183 creator A5029451343 @default.
- W3134655183 creator A5066504914 @default.
- W3134655183 creator A5089497003 @default.
- W3134655183 date "2021-02-24" @default.
- W3134655183 modified "2023-09-30" @default.
- W3134655183 title "Fatty Acid Profiles of Separated Host-Symbiont Fractions From Five Symbiotic Corals: Applications of Chemotaxonomic and Trophic Biomarkers" @default.
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- W3134655183 doi "https://doi.org/10.21203/rs.3.rs-231226/v1" @default.