Abstract
In 1988, immatureCapitella sp. I (initial biomass 80µg dry wt) were raised on four diets: Gerber cereal, TetraMin fish food,Ulva sp., and benthic diatoms. After 2 wk of culturing different populations on these diets, eggs were dissected from gravid females, frozen and analyzed for fatty acid and sterol composition. Eggs produced by worms on different food types were discriminated by fatty acid composition in a principal component analysis (PCA), with 18:19, 18:2, 20:5 and 20:4 fatty acids showing the greatest differences between experimental groups. The sterol profiles of all eggs were dominated by cholesterol (cholest-5-en-3β-ol) and cholest-5,24-dien-3β-ol (>60%). A PCA of egg sterols discriminated between adult diets with cholesterol, 23,24-dimethyl-cholesta-5-en-3β-ol, cholest-5,24-dien-3β-ol and a C-29 stenol showing the greatest differences. In field populations ofCapitella sp. I, oocytes produced at different times of the year may have different levels of lipids depending on their dietary availability during vitellogenesis. Variations in oocyte composition may influence larval growth and development and thus have an impact on population dynamics. Alternatively, variations in fatty acid and sterol composition of oocytes may allow us to identify the food resources utilized by this species.
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Ackman, R., Jangaard, P., Hoyle, R., Brockerhoff, H. (1964). Origin of marine fatty acids. I. Analyses of the fatty acids produzed by the diatomSkeletonema costatum. J. Fish. Res. Bd Can. 21: 747–756
Chesney, E., Tenore, K. (1985). Oscillations of laboratory populations of the opportunistic polychaeteCapitella capitata (Type I): their cause and implications for natural populations. Mar. Ecol. Prog. Ser. 20: 289–296
Eckelbarger, K. (1986). Vitellogenic mechanisms and the allocation of energy to offspring in polychaetes. Bull. mar. Sci. 39: 426–443
Eckelbarger, K., Grassle, J. (1983). Ultrastructural differences in the eggs and ovarian follicle cells ofCapitella (Polychaeta) sibling species. Biol. Bull. mar. biol. Lab., Woods Hole 165: 379–393
Goad, L. (1978). The sterols of marine invertebrates: composition, biosynthesis and metabolites. In: Scheuer, P. (ed.) Marine natural products: chemical and biological perspectives, II. Academic Press, New York, p. 75–172
Grassle, J. P. (1980). Polychaete sibling species. In: Brinkhurst, R., Cook, D. (eds.) Aquatic oligochaete biology. Plenum Press, New York, p. 25–32
Grassle, J. P., Grassle, J. F. (1976). Sibling species in the marine pollution indicatorCapitella (Polychaeta). Science, N.Y. 192: 567–569
Grémare, A., Marsh, A., Tenore, K. (1988). Short-term reproductive responses ofCapitella sp. I (Annelida: Polychaeta) fed on different diets. J. exp. mar. Biol. Ecol. 123: 147–162
Harvey, H. R., Eglinton, G., O'Hara, S., Corner, E. (1987). Biotransformation and assimilation of dietary lipids byCalanus feeding on a dinoflagellate. Geochim. cosmochim. Acta 51: 3031–3040
Levin, L. (1986). Effects of enrichment on reproduction in the opportunistic polychaeteStreblospio benedicti (Webster): a mesocosm study. Biol. Bull. mar. biol. Lab., Woods Hole 171: 143–160
Marsh, A., Grémare, A., Tenore, K. (1989). The effect f food type and food ration on growth of juvenileCapitella sp. I (Annelida: Polychaeta): macro- and micro- nutrients. Mar. Biol. 102: 519–527
Marsh, A., Tenore, K. (1990). The role of nutrition in regulating the population dynamics of opportunistic, surface deposit-feeders in a mesohaline community. Limnol. Oceanogr. 35: 406–420
Mayzaud, P., Chanut, J., Ackman, R. (1989). Seasonal changes of the biochemical composition of marine particulate matter with special reference to fatty acids and sterols. Mar. Ecol. Prog. Ser. 56: 189–204
Nixon, S., Pilson, M., Oviatt, C., Donaghay, P., Sullivan, B., Seitzinger, S., Rudnick, D., Frithsen, J. (1984). Eutrophication of a coastal marine ecosystem — an experimental study using the MERL microcosms. In: Fasham, R. (ed.) Flows of energy and materials in marine ecosystems. Theory and Practice. Plenum Press, New York, p. 105–135
Volkman, J., Corner, E., Eglinton, G. (1980). Transformations of biolipids in the marine food web and underlying bottom sediments. Colloques int. Cent. natn. Rech. scient. 293: 185–197
Zajac, R. (1986). The effects of intra-specific density and food supply on growth and reproduction in an infaunal polychaete,Polydora ligni Webster. J. mar. Res. 44: 339–359
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Communicated by J. Grassle, Woods Hole
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Marsh, A.G., Harvey, H.R., Grémare, A. et al. Dietary effects on oocyte yolk-composition inCapitella sp. I (Annelida: Polychaeta): Fatty acids and sterols. Mar. Biol. 106, 369–374 (1990). https://doi.org/10.1007/BF01344314
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DOI: https://doi.org/10.1007/BF01344314