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Hydrobiologia

, Volume 176, Issue 1, pp 189–196 | Cite as

Heavy metals in eelgrass (Zostera marina L.) during growth and decomposition

  • Jens Erik Lyngby
  • Hans Brix
Contaminant accumulation, distributions, geochemistry and mineralogy

Abstract

The distributions of cadmium, chromium, lead, and zinc in eelgrass were studied in samples collected from the field, and the loss/accumulation of the metals during decomposition of eelgrass leaves was studied in laboratory experiments.

Concentrations of heavy metals in the below grounds parts were greater in the roots than in the different age groups of the rhizomes. In the rhizomes, the highest concentrations of lead were recorded in the oldest parts, whereas highest chromium and zinc concentrations were found in the youngest parts. The concentration of cadmium did not vary. In the above ground parts, the concentrations of cadmium, lead, and zinc increased with age of the leaves, and concentrations in the leaves were greater than in the stem fraction. The concentrations of chromium decreased with age of the leaves.

In the laboratory study of decomposition of leaf material, the concentrations of chromium, lead and zinc increased significantly and a net absorption from the surrounding water was recorded. Cadmium concentrations were relatively constant and a loss of cadmium was proportional to the release of soluble organic compounds indicating an association of cadmium with the soluble phase.

The investigation demonstrated the utility of compositional analyses and decomposition experiments in assessing the significance of eelgrass in the heavy metal cycling in coastal areas. Furthermore, significant differences in the fate of heavy metals associated with eelgrass detritus are discussed.

Key words

heavy metals seagrasses decomposition distribution 

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References

  1. Aioi, K. & H. Mukai, 1980. On the distribution of organic contents in a plant of eelgrass (Zostera Marina L.). Jap. J. Ecol. 30: 189–192.Google Scholar
  2. Brix, H. & J. E. Lyngby, 1982. The distribution of cadmium, copper, lead, and zinc in eelgrass (Zostera marina L.). Sci. Total Envir. 24: 51–63.Google Scholar
  3. Brix, H. & J. E. Lyngby, 1983. The distribution of some metallic elements in eelgrass (Zostera marina L.) and sediment in the Limfjord, Denmark. Est. Coast Shelf Sci. 16: 455–467.Google Scholar
  4. Brix, H., J. E. Lyngby & H. H. Schierup, 1983a. Eelgrass (Zostera marina L.) as an indicator organism of trace metals in the Limfjord, Denmark. Mar. Envir. Res. 8: 165–181.Google Scholar
  5. Brix, H., J. E. Lyngby & H. H. Schierup, 1983b. The reproducibility in the determination of heavy metals in marine plant material — an interlaboratory calibration. Mar. Chem. 12: 69–85.Google Scholar
  6. Burrell, D. C. & J. R. Schubel, 1977. Seagrass ecosystem oceanography. In Seegrass ecosystems: A scientific perspective, McRoy, P. & C. Hellfferich, (eds). Mar. Sci. 4: 195–232.Google Scholar
  7. Drifmeyer, J. E. & Rublee, 1981. Mn, Fe, Cu and Zn in Spartina alterniora and microorganisms. Bot. mar. 24: 251–256.Google Scholar
  8. Drifmeyer, J. E., G. W. Thayer, F. A. Cross & J. C. Zimann, 1980. Cycling of Mn, Fe, Cu and Zn by eelgrass, Zostera marina L. Am. J. Bot. 67: 1089–1096.Google Scholar
  9. Fenchel, T., 1977. Aspects of the decomposition of seagrasses. In Seagrass Ecosystems, A Scientific Perspective (McRoy, P. & Helfferich, C., eds). Mar. Sci. 4: 123–145.Google Scholar
  10. Hartog, C. den, 1970. The Seagrasses of the World. North Holland, Amsterdam, 275 pp.Google Scholar
  11. Harrison, P. G. & K. H. Mann, 1975. Chemical changes during the seasonal cycle of growth and decay in eelgrass (Zostera marina) on the Atlantic coast of Canada. J. Fish. Res. Bd Can. 32: 615–621.Google Scholar
  12. Koeppe, D. E., 1977. The uptake, distribution, and effect of cadmium and lead in plants. Sci. Total Environ. 7: 197–206.Google Scholar
  13. Larsen, V. J., 1982. The effects of pre-drying and fragmentation on the leaching of nutrient elements and organic matter from Phragmites australis (Cav) Trin. litter. Aquat. Bot. 14: 29–39.Google Scholar
  14. Lyngby, J. E. & H. Brix, 1984. The uptake of heavy metals in eelgrass (Zostera marina) and their effect on growth. Ecol. Bull. 36: 81–89.Google Scholar
  15. Lyngby, J. E. & H. Brix, 1987. Monitoring of heavy metal contamination in the Limfjord, Denmark, using biological indicators and sediment. Sci. Total Envir. 64: 239–252.Google Scholar
  16. Lyngby, J. E., H. Brix & H. H. Schierup, 1982. Absorption and translocation of zinc in eelgrass (Zostera marina L.) J. exp. mar. Biol. Ecol. 58: 259–270.Google Scholar
  17. Maeda, M., K. Koshikawa, Nisizawa & K. Takano, 1966. Cell wall constituents, especially pectic substance of a marine phanerogam Zostera marina. Bot. Mag. Tokyo. 79: 422–426.Google Scholar
  18. Mann, K. H., 1982. Ecology of coastal waters. Studies in Ecology, 8: 18–52.Google Scholar
  19. Odum, W. E. & Drifmeyer, 1978. Sorption of pollutants by plant detritus: a review. Environ Health Perspec. 27: 133–137.Google Scholar
  20. Rice, D. L. & H. L. Windom, 1982. Trace metal transfer associated with the decomposition of detritus derived from estuarine macrophytes. Bot. mar. 25: 213–223.Google Scholar
  21. Smith, G. W., S. S. Hayasaka & G. W. Thayer, 1979. Root surface area measurement of Zostera marina and Halodule wrightii. Bot. mar. 22: 97–108.Google Scholar
  22. Thayer, G. W., S. M. Adams & M. W. Lacroix, 1975. Structural and functional aspects of a recently established Zostera marina community. In Estuarine Research, L. E. Cronin, (ed.). Academic Press, New York, 1: 518–540.Google Scholar
  23. Tiffin, L. O., 1972. Translocation of micronutrients in plants. In Micronutrients in agriculture (Morvedt J. J., Giordano, P. M. and Lindsay W. L. (eds). Soil Sci. Soc. Am. Madison, Wisconsin. pp. 199–229.Google Scholar
  24. Welsh, R. P. H. & P. Denny, 1979. The translocation of lead and copper in two submerged aquatic angiosperm species. J. exp. Bot. 30: 339–345.Google Scholar
  25. Welsh, R. P. H. & P. Denny, 1980. The uptake of lead and copper by submerged aquatic macrophytes in two English lakes. J. Ecol. 68: 443–455.Google Scholar
  26. Zieman, J. C., 1975. Quantitative and dynamic aspects of the ecology of turtle grass, Thalassia testudinum. Estuar. Res. (Cronin, L. E., ed.) Academic Press, New York 1: 541–562.Google Scholar

Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Jens Erik Lyngby
    • 1
  • Hans Brix
    • 2
  1. 1.Water Quality InstituteHørsholmDenmark
  2. 2.Botanical Institute, University of ÅrhusRisskovDenmark

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