Abstract
Elevated phosphate concentrations at Safaga and Quseir, Red Sea, Egyptian coast, wererelated to some ecological and nutritional aspects of the macro-alga Cystoseira myrica during1985. The results obtained were compared with those recorded for a non-polluted control site atGhardaqa.
Chemical analysis of surface seawater samples revealed that the concentrations of dissolvedphosphate at Safaga and Quseir were 3 and 20 times as much as that at Ghardaqa, respectively.The standing crop of C. myrica showed two peaks in spring and autumn. Maximum biomass yield(491 g m-2) and number of individuals (127 m-2) of C. myrica were recorded in the spring at theGhardaqa site. Quseir C. myrica samples contained significantly higher protein-N, total-N andtotal-P values but lower carbohydrate values than the Safaga and Ghardaqa samples (LSD at 1%level). Tissue N:P molar ratios for C. myrica, Laurencia papillosa and Ulva lactuca collected fromGhardaqa ranged from 68-98, compared to 30-59 for the same species collected at thephosphorus polluted sites at Safaga and Quseir. The carbon levels and the C:N ratios of C. myricaexhibited no significant variations in the three studied sites. However, the C:P ratios of Ghardaqaplants were significantly higher than those of Safaga and Quseir.
Similar content being viewed by others
References
Abou-Aisha, Kh. M., Kobbia, I. A., El-Abyad, M. S., Shabana, Effat F. and Schanz, F.: 1995, Water; Air; and Soil Pollut. 79, 1.
Atkinson, M. J. and Smith, S. V.: 1983, Limnol.Oceanogr. 28, 568.
Dawes, C. J., Chen, C. P., Jewett-Smith, J., Marsh, A. and Watts S. A,: 1984, Mar.Biol. 78, 325.
De Boer, J. A,: 1981, ‘Nutrients’, in C. S. Lobban and M. J. Wynne (eds.), The Biology of Seaweeds, Blackwell Scientific Publications, Oxford, pp. 356–392.
D'Elia, C. F.: 1988, ‘The Cycling of Essential Elements in Coral Reefs’, in L. R. Pomeroy and J. J. Alberts (eds.), Concepts of Ecosystem Ecology, Springer Verlag, New York, pp. 195–230.
Dubois, M., Gilles, K. A., Hamilton, J. K., Rebers, P. A. and Smith, F.: 1956, Anal.Chem. 28, 350.
Freemantle, M. H., Hulings, N., Mulqi, H. and Watton, E. C.: 1978, Mar.Pollut.Bull. 9, 79.
Friedlander, M., Shalev, R., Ganor, T., Strimling, S., Ben-Amotz, A., Klar, H. and Wax, Y.: 1987, Hydrobiologia 1511152, 501.
Fujita, R. M., Wheeler, P. A. and Edwards, R. L.: 1988; J. Phycol. 24, 560.
Hanisak, M. D.: 1983, ‘The Nitrogen Relations of Marine Macroalgae’, in E. J. Carpenter and D. G. Capone (eds.), Nitrogen in the Marine Environment, Academic Press, New York, pp. 699–730.
Head, S. M.: 1987, ‘Corais and Coral reefs of the Red Sea’, in A. J. Edwards and S. M. Head (eds.), Red Sea (Key environments). Pergamon Press, Oxford, pp. 128–151.
Kalugina-Gutnik, A. A.: 1971, ‘Specific Composition and Geographical Distribution of Red Sea Macrophytes’, in Benthos of the RedSea Shelf. Naukova Domka, Kiev, pp. 232–267 (in Russian).
Khalil, A. N.: 1990, Arab GulfJ.Scient.Res. 8, 197.
Khalil, A. N., Khafagi, A. K. and Ibrahim, A. M.: 1984, ‘Preliminary Survey of Micro-and Macrophytes South of Jeddah’, Proc. Symp. Coral Reef Environ. Red Sea, Jeddah, pp. 555–576.
Kohl, J. G. and Nicklisch, A,: 1988, Okophysiologie der Algen, Akademie-Verlag, Berlin, 253 pp.
Lapointe, B. E.: 1985, J. Exp.Mar.Biol.Ecol. 93, 211.
Lapointe, B. E., Littler, M. M. and Littler, D. S.: 1987, Aquat.Bot. 28, 243.
Lowry, O. H., Rosenbrough, J., Fan, A. C. and Randal, R. J.: 1951, J. Biol.Chem. 193, 265.
Menzel, D. W. and Corwin, N.: 1965, Limnol.Oceqnogr. 19, 280.
Mergner, H. and Svoboda, A,: 1977, Helgolander wiss.Meeres-unters. 30, 383.
Morcos, S. A,: 1970, Oceanogr.Mar.biol.Ann.Rev. 8, 73.
Myklestad, S. and Haug, A.: 1972, J. Exp.Mar.Biol.Ecol. 9, 125.
Naguib, M. I.: 1969, Bull.Fac.Sci.Cairo Univ. 43, 1.
Nasr, A. H.: 1936, 'General Study of the Marine Algae of the Egyptian Red Sea Coast’, M. Sc. Thesis, The Egyptian Univ., Fac. Sci. Cairo 181 pp.
Nasr, A. H.: 1947, Bull.Fac.Sci.Egypt.Univ. 26, 1.
Parsons, T. R., Maita, Y. and Lalli, C. M.: 1984, A Manual of Chemical and Biological Methods for Seawater Analysis, Pergamon Press., Oxford, 173 pp.
Penniman, C. A. and Mathieson, A. C.: 1987, Bot.Mar. 30, 525.
Poisson, A., Morcos, S., Souvermezoglou, E., Papaud, A. and Ivanoff, A,: 1984, Deep Sea Res. 31, 707.
Rosenberg, G. and Ramus, J.: 1982, Mar.Biol. 66, 251.
Smith, S. V., Kimmerer, W. J., Laws, E. A., Brock, R. E. and Walsh, T. W.: 1981, PNC.Sci. 35, 279.
Solorzano, L.: 1969, Limnol.Oceanogr. 14, 799.
UNEP: 1987, State of the marine environment in the Red Sea region (draft) 94 pp.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Abou-Aisha, K.M., Shabana, E.F., El-Abyad, M.S. et al. Seasonal Changes in Cystoseira Myrica and Phosphorus Input at Two Sites of the Red Sea Egyptian Coast. Water, Air, & Soil Pollution 93, 199–211 (1997). https://doi.org/10.1023/A:1022196227853
Issue Date:
DOI: https://doi.org/10.1023/A:1022196227853