American eels produce and release bile acids that vary across life stage
The American eel (Anguilla rostrata ) is an imperilled fish hypothesized to use conspecific cues, in part, to coordinate long‐distance migration during their multistage life history. Here, holding water and tissue from multiple American eel life stages was collected and analysed for the presence, profile and concentration of bile acids. Distinct bile acid profiles were identified in glass, elver, yellow eel and silver eel holding waters using ultraperformance liquid chromatography high‐resolution mass spectrometry and principal component analysis. Taurochenodeoxycholic acid, taurodeoxycholic acid, cholic acid, deoxycholic acid, taurolithocholic acid and taurocholic acid were detected in whole tissue of American glass eels and elvers, and in liver, intestine and gallbladder samples of late‐stage yellow eels. Bile acids were not a major component of silver eel washings or tissue. This study is novel because little was previously known about bile acids produced and emitted into the environment by American eels. Future behavioural studies could evaluate whether any bile acids produced by American eels influence conspecific migratory behaviour.
Citation Information
| Publication Year | 2020 |
|---|---|
| Title | American eels produce and release bile acids that vary across life stage |
| DOI | 10.1111/jfb.14295 |
| Authors | Andrew K. Schmucker, Nicholas S. Johnson, Ugo Bussy, Ke Li, Heather S. Galbraith, Yu-Wen Chung-Davidson, Weiming Li |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Journal of Fish Biology |
| Index ID | 70211506 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Great Lakes Science Center; Leetown Science Center |
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Bile acid concentrations in tissues of American eel that were held at Northern Appalachian Research Laboratory, Wellsboro, Pennsylvania, as derived from liquid chromatography coupled to tandem mass spectrometry
The American eel (Anguilla rostrata) is an imperiled fish hypothesized to use conspecific cues, in part, to coordinate long distance migration during their multi-stage life history. Here, tissues from multiple American eel life stages were collected and analyzed for the presence and concentration of bile acids. Specifically, samples were collected in the Northern Appalachian Research Laboratory du - Connect