Conference Paper
Avaliação do perfil lipídico de peixes cavernícolas
Monteiro, A.G.D.P., Guerreiro, M.C., Ferreira, R.L. and Pinto, L.M.A.
Record Number:
5806
Year:
2009
Pages:
133-137
Abstract:
Caves can be characterized as a dynamic environment under permanent change, mainly by the action of
water which serves as training, shaping and placement of many features. In that dark room without food
many species are being generated with characteristics very different from the ones existing outside that
habitat. Because of that, new species of animals have been emerging and being discovered. For this study, it
was used troglobius (Trichomycterus itacarambiensis and Stygichthys typhlops) and troglophylus (Ituglanis
spn) fishes. In order to search on the aquatic environment and the changes experienced by these species it
was carried out analysis of the lipid profile, by using gas chromatography with a flame-ionization detector.
30 fatty acids were identified with more evidence for palmitic acid (C16:0), 22,28%; stearic acid (C18:0),
8,52%; oleic acid (C18:1n9c), 29,07%; linoleic acid (C18:2n6c), 5,64%; linolenic acid(C18:3n3), 2,23%;
tricosanoic acid (C23:0), 2,27% and cis-4,7,10,13,16,19–docosaexaenoic acid (DHA - C22:6n3), 1,40%.
Individual analysis demonstrated that differences between species, habitat and food could be related with the
fatty acid profile observed.
Key-words: cave, troglobius, troglophylus, lipids.
Times Cited:
2
Conference Name:
Anais do XXX Congresso Brasileiro de Espeleologia
Conference Location:
Conference Location: