About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
Stable Carbon Isotopic Composition of Lipids of Hydrocarbon Seep Mussels and Whitefish, Carbon Flow Implications
Jiasong Fang, Paul A. Comet, James M. Brooks, Roger Sassen (1)
The individual fatty acids of hydrocarbon seep mussels (seep mytilid II) and whitefish exhibit very light 13C values, from -50.0 to -57.9, and from -25.2 to -27.1, respectively. Unsaturated fatty acids have lighter 13C than saturated ones. The variations in 13C are up to 5.1 (mussel #1), 6.7 (mussel #2), and 2.7 (whitefish). A kinetic isotopic effect in the biosynthesis of fatty acids and intermolecular isotope fractionation during fatty acid desaturation and elongation is suggested to account for the observed distribution pattern. The systematic decrease of 13C in the order of mussel body, gill, and fatty acids, reflects the pathway of carbon flow as well as the biosynthetic locus in the mussels-bacteria system.
Fatty acids of whitefish have significantly heavier 13C compared to those of mussels, reflecting distinctly different food source of the the animals.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
|Watermarked PDF Document: $14|
|Open PDF Document: $24|