 Bibliography and Index of the Sirenia and Desmostylia 
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Eigeland, Karen A.; Lanyon, Janet M.; Trott, Darren J.; Ouwerkerk, Diane; Blanshard, Wendy H.; Milinovich, Gabriel J.; Gulino, Lisa-Maree; Martinez, Emilio; Merson, Samuel D.; Klieve, Athol V.
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2012 |
Bacterial community structure in the hindgut of wild and captive dugongs (Dugong dugon).
Aquatic Mammals 38(4): 402-411. 3 tabs. 1 fig. DOI:10.1578/AM.38.4.2012.402.
–ABSTRACT: Dugongs (Dugong dugon) are marine mammals that obtain nutrients through hindgut fermentation of seagrass, however, the microbes responsible have not been identified. This study used denaturing gradient gel electrophoresis (DGGE) and 454-pyrosequencing to profile hindgut bacterial communities in wild dugongs. Faecal samples obtained from 32 wild dugongs representing four size/maturity classes, and two captive dugongs fed on cos lettuce were screened using DGGE. Partial 16S rRNA gene profiles of hindgut bacteria from wild dugong calves and juveniles were grouped together and were different to those in subadults and adults. In captive dugongs, the absence of the dominant bacterial DNA bands identified in wild dugongs is probably dependent upon prevailing diet and other captive conditions such as the use of antibiotics. This study represents a first step in the characterisation of a novel microbial ecosystem -- the marine hindgut of Sirenia.
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Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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