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| Pond, David W; Segonzac, Michel; Bell, Michael V; Dixon, David R; Fallick, Anthony E; Sargent, John R. |
| Mirocaris fortunata were sampled from the Lucky Strike hydrothermal vent area (Eiffel Tower site) on the mid-Atlantic ridge during the French DIVA 2 cruise (June 1994). Small adults (17 to 22 mm total length), although morphologically identical, could be divided into 2 categories on the basis of pigmentation, lipid composition and C-13/C-12 stable isotope ratios of fatty acids. Highly pigmented small adults (8.6 to 9.2 mu g carotenoid shrimp(-1)) contained higher levels of total lipid than similar-sized individuals containing lower levels of pigment (0.9 to 2.9 mu g carotenoid shrimp(-1)). Lipid class analysis indicated that wax esters comprised 62.5% of total lipid in the former group. These pigmented shrimp also contained high proportions of... |
| Tipo: Text |
Palavras-chave: Mirocaris fortunata; Lipid; Stable isotope; Hedge betting. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00337/44783/44491.pdf |
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| Pond, David W; Bell, Michael V; Dixon, David R; Fallick, Anthony E; Segonzac, Michel; Sargent, John R. |
| Fatty acid biomarker analysis coupled with gas chromatography-isotope ratio mass spectrometry was used to confirm the presence of methanotrophic and thiotrophic bacterial endosymbionts in the tissues of a hydrothermal vent mussel (Bathymodiolus sp.), collected from the Menez Gwen vent field on the mid-Atlantic ridge, Monounsaturated (n-8) fatty acids, which are diagnostic of methanotrophic bacteria, were detected in all three types of tissues examined (gill, posterior adductor, and mantle), although levels were highest in gill tissues where the bacteria were found, Stable-carbon-isotope compositions (delta-C-13 per mille relative to that of Peedee belemnite) of fatty acids for all three tissues ranged from -24.9 to -34.9%., which encompasses the range... |
| Tipo: Text |
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| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00448/55922/57836.pdf |
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