Elemental and biochemical composition of salps (Tunicata: Thaliacea) |
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Authors: | L P Madin C M Cetta V L McAlister |
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Institution: | (1) Woods Hole Oceanographic Institution, 02543 Woods Hole, Massachusetts, USA;(2) Present address: Institute of Oceanographic Sciences, Wormley, Godalming, Surrey, England |
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Abstract: | Carbon and nitrogen content have been measured in the solitary and aggregate generations of 11 species of salps. Regression equations for each species and generation permit estimation of carbon or nitrogen content as a function of length of live individuals. Different species of the same length may have nearly tenfold differences in carbon content. Fractionation and biochemical analysis of some samples revealed that the organic content of salps is approximately 80% protein. Ash-free dry weights average 27% of dry weights; mean carbon content is 29% of ash-free dry weight. Excess ash-free dry weight not accountable as organic material is thought to be water of hydration. |
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