Combating Desertification through Fish Farming

  • Nagwa Hassan Elnwishy
  • Mohammed Salah Ramadhane
  • Samy Mohammed Zalat
Conference paper

For many years the relationship between fish farming and agriculture has been built on recycling the discharged water from the cultivated fields into the aquaculture systems. This discharged water was sometimes full of pesticides and chemicals that were hazardous to both fish and humans. But the proposed integrated aquaculture and agriculture system is to work in the opposite direction: the drainage water of the aquaculture is recycled for agriculture. In this case, no pesticides or hazards are transferred to the fish and, at the same time, plants are irrigated with naturally fertilized water, which has very limited chances of negative impact on the environment or human health.

The study revealed no significant difference (P > 0.05) between tilapia fish (Oreochromis niloticus) reared on groundwater and fish grown in the natural open waters, whether in growth rates, total protein or total phosphorus content. The organic matter, total Nitrogen and NH3 were significantly increased in the drainage water as compared with the supplied water. Irrigating the soil with the drainage water of fish ponds significantly enhanced soil quality, indicated by an increase in organic matter and total nitrogen, and reduced soil salinity.

It was concluded that combating desertification can be made effective through integrative fish farming in arid and semi-arid areas with the presence of brackish groundwater. Moreover, not only will it protect lands from degradation and improve their quality, but it will also utilize neglected natural resources in creating a productive community.

Keywords

Desertification fish farming groundwater soil quality 

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References

  1. Abdel-Azeem, A., Abdelaazez, N. and Taher, B. 1989. Introduction to Crops Science. (In Arabic.)Google Scholar
  2. Abdel-Bary, M. 2002. The three nos and the future of fish farming. Egyptian Society of Aqua Culture, Vol. 1, pp. 6. (In Arabic.)Google Scholar
  3. Abdel-Hameed, Mohamed, Eid. 1993. Fish feeding. Eid trading for publishing, (In Arabic.)Google Scholar
  4. Abdel-Hamid, N.A.H. 1994. Effect of some pollutants on biological aspects of Oreochromis nilo-ticus. M.Sc. Thesis, Faculty of Science, Zagazig University, Benha Branch, p. 198Google Scholar
  5. Black, C. A., Evans, D. D., White J. L., Ensminger, L. E. and Clark, F. E. 1965. Methods of soil analysis, Part 2: Chemical and microbiological properties. American Society of Agronomy, Vol. 9, pp. 1379–1400Google Scholar
  6. El-Gamal, A. A., 1992. Predation by Nile perch Lates niloticus (L.) on Oreochromis niloticus (L.),Cyprinus carpio (L.), Mugil sp. and its role in controlling tilapia recruitment in Egypt. Journal of Fish Biology 46, pp. 359–370Google Scholar
  7. El-Gamal, A., 2001. Status and development trends of aquaculture in the Near East. In: R.P. Subasinghe, P. Bueno, M.J. Phillips, C. Hough, S.E. McGladdery & J.R. Arthur (eds.) Aquaculture in the Third Millennium. Technical Proceedings of the Conference on Aquaculture in the Third Millennium, Bangkok, Thailand, 20–25 February 2000. pp. 357–376. NACA, Bangkok and FAO, RomeGoogle Scholar
  8. El-Hendawy, S. E., Hua, Y., Yakout, G. M., Awad, A. M., Hafez, S. E. and Schmidhalter, U. 2005. Evaluating salt tolerance of wheat genotypes using multiple parameters. European Journal of Agronomy, Vol. 22, pp. 243–253CrossRefGoogle Scholar
  9. Eurell, T. E., Leuis, S. D. and Grumbles, L. C. 1978. Comparison of selected diagnostic tests for detection of A. sepiticemia in fish. American Journal of Veterinary Research, Vol. 39, pp. 1384–1386Google Scholar
  10. Fiske, C. H. and Subbarow, Y. 1925. The colorimetric determination of phosphorus. Journal of Biological Chemistry, Vol. 66, pp. 375–400Google Scholar
  11. GAFRD (General Authority of Fish Resources Development). 2002. Principles of Fish Feeding in Fish Farms. Vol. 24, No. 12. GAFRD, Cairo, (In Arabic.)Google Scholar
  12. Guindy, K. A. 2000. Assessment of ground water resources in El-Maghra area, Central Sinai, Egypt. Desert Institute Bulletin Egypt, Vol. 50, No. 2, pp. 251–272Google Scholar
  13. Hasanein, B. M. 2000. Evaluation of some soil characteristics and fertility status in south eastern Egyptian desert (Halayib — Shalatein). Desert Institute Bulletin Egypt, Vol. 50, No. 1, pp. 209–224Google Scholar
  14. Henry, R. J. 1964. Clinical Chemistry: Principles and Techniques, Harper & Row, New YorkGoogle Scholar
  15. Jackson, M. L. 1967. Soil Chemical Analysis, Prentice-Hall, Englewood Cliffs, NJGoogle Scholar
  16. Mazhar, M. F., Abdelraoof, S. M. and Khalail, A. N. 1993. Beans and Crops Yields. Book House Publisher, (In Arabic.)Google Scholar
  17. Mohammed, F. O., Shreef, S. E. and Mohammed, A. M. 2004. What do we know about extrusion technique and its role in enhancing the efficiency of food pellets used in feeding fish and shrimps. EACS, Vol. 1, No. 22, pp. 220–222. (In Arabic.)Google Scholar
  18. Olsen, S. R., Cole, C. V., Watanabe, F. S. and Dean, L. A. 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. United States Department of Agriculture Circular (USDA), No. 939, United States Governmental Printing Office, Washington, DCGoogle Scholar
  19. Page, A. L., Miller R. H. and Keeny, D. R. 1982. Methods of soil analysis Part 2, Chemical and microbiological properties Part 2: American Society of Agronomy, Madison, WI pp. 1142Google Scholar
  20. Richards, L. A. 1954. Diagnosis and Improvement of Salina and Alkali Soils. United States Department of Agriculture, Handbook No. 60, Washington, USAGoogle Scholar
  21. Sameh, H. S. 2005. Intensifying fish farming. Agricultural Journal, Vol. 554, pp. 54–52. (In Arabic.)Google Scholar

Copyright information

© UNESCO 2008

Authors and Affiliations

  • Nagwa Hassan Elnwishy
    • 1
  • Mohammed Salah Ramadhane
    • 2
  • Samy Mohammed Zalat
    • 3
  1. 1.Researcher, Biotechnology Research CenterSuez Canal UniversityIsmailiaEgypt
  2. 2.Prof. of Fisheries & AquacultureINATTunisTunisia
  3. 3.Prof. of BiodiversityZoology Dept., Faculty of Sciences, Suez Canal Univ.IsmailiaEgypt

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