References
- Deniro, M. J. & Epstein, S., 1978: Influence of diet on the distribution of carbon isotopes in animals. — Geochim. Cosmochim. Acta 42: 495–506.
- Deniro, M. J. & Epstein, S. — 1981: Influence of diet on the distribution of nitrogen isotopes in animal. — Geochim. Cosmochim. Acta 45: 341–351.
- Deuser, W. G., Degens, E. T. & Guillard, R. R. L., 1968: Carbon isotope relationships between plankton and sea water. — Geochim. Cosmochim. Acta 32: 657–660.
- Estep, M. L. F. & Vigg, S., 1985: Stable carbon and nitrogen isotope tracers of trophic dynamics in natural populations and fisheries of the Lahontan Lake system, Nevada. — Can. J. Fish. Aquat. Sci. 42: 1712–1719.
- Fry, B., Jeng, W.-L., Scalan, R. S., Parker, P. L. & Baccus, J., 1978: 13C food web analysis of a Texas sand dune community. — Geochim. Cosmochim. Acta 42: 1299–1302.
- Fry, B. & Parker, P. L., 1979: Animal diet in Texas seagrass meadows: δ13C evidence for the importance of benthic plants. — Estuarine Coastal Mar. Sci. 8: 499–509.
- Haines, E. B., 1976: Relation between the stable carbon isotope composition of fiddler crabs, plants, and soils in a salt marsh. — Limnol Oceanogr. 21: 880–883.
- Lazerte, B. D. & Szalados, J. E., 1982: Stable carbon isotope ratio of submerged freshwater macrophytes. — Limnol. Oceanogr. 27: 413–418.
- Minagawa, M. & Wada, E., 1984: Stepwise enrichment of 15N along food chains: Further evidence and the relation between 15N and animal age. — Geochim. Cosmochim. Acta 48: 1135–1140.
- Minagawa, M., Winter, D. A. & Kaplan, I. R., 1984: Comparison of Kjeldahl and combustion methods for measurement of nitrogen isotope ratios in organic matter. — Anal. Chem. 56: 1859–1861.
- Mizutani, H., Kabaya, Y. & Wada, E., 1985: High-performance liquid chromatographic isolation of uric acid from soil for isotopic determination. — J. Chromatogr. 331: 371–381.
- Mizutani, H. & Wada, E., 1985: Combustion of organic samples by infrared furnace for carbon isotope analysis. — Anal. Biochem. 146: 90–95.
- Pang, P. C. & Nriagu, J. O., 1977: Isotopic variations of the nitrogen in Lake Superior. — Geochim. Cosmochim. Acta 41: 811–814.
- Rau, G., 1978: Carbon -13 depletion in a subalpine lake: Carbon flow implications. — Science 201: 901–902.
- Smith, B. N. & Epstein, S., 1971: Two categories of 13C/12C ratios for higher plants. — Plant Physiol. 47: 380–384.
- Stiller, M. & Nissenbaum, A., 1980: Variations of stable hydrogen isotopes in plankton from a freshwater lake. — Geochim. Cosmochim. Acta 44: 1099–1101.
- Wada, E., Terazaki, M., Kabaya, Y. & Nemoto, T., 1987: 15N and 13C abundances in the Antarctic Ocean with emphasis on biogeochemical structure of food web. — Deep-Sea Res. 34:829–841.
- Wong, W. W. & Sackett, W. M., 1978: Fractionation of stable carbon isotopes by marine phytoplankton. — Geochim. Cosmochim. Acta 42: 1809–1815.
- Yamamoto, M., Takayama, H., Hayashi, H. & Nakamura, K., 1985: Food habit of pisces in Lake Kizaki. — Reports of Environ. Sd. Res. B-258-R12-7, p. 58–67, in Japanese.