Have a personal or library account? Click to login
Spatial Variability in Growth and Condition of Nile Tilapia Oreochromis Niloticus Linked to Pollution Gradients in the Nile River, Egypt Cover

Spatial Variability in Growth and Condition of Nile Tilapia Oreochromis Niloticus Linked to Pollution Gradients in the Nile River, Egypt

Open Access
|Mar 2026

References

  1. Abdel-Satar, A.M., Ali, M.H., Goher, M.E. (2017): Indices of water quality and metal pollution in the Nile River, Egypt. Egyptian Journal of Aquatic Research, 43, 21–29. https://doi.org/10.1016/j.ejar.2016.12.006
  2. Abidemi-Iromini, A.O., Bello-Olusoji, O.A., Adebayo, I.A. (2022): Bioaccumulation of heavy metals in silver catfish (Chrysichthys nigrodigitatus) and tilapia fish (Oreochromis niloticus) from the brackish and freshwater in South-West, Nigeria. The Journal of Basic and Applied Zoology, 83,1,18. https://doi.org/10.1186/s41936-022-00272-z
  3. AbouelFadl, Kh. Y., Farrag, M. M. S. (2020): Biology and population dynamics of the freshwater puffer fish, Tetraodon lineatus (Linnaeus, 1758), from the River Nile, Aswan, Egypt. Egyptian Journal of Aquatic Research. 47, 75-80. https://doi.org/10.1016/j.ejar.2020.09.005
  4. AbouelFadl, Kh. Y., Aly, W., Osman, A. G. (2020): A comparative study of scales and otoliths for aging Nile tilapia (Oreochromis niloticus). International Journal of Aquatic Biology, 8, 4, 262-271. https://ijaquaticbiology.com/index.php/ijab/article/view/914
  5. Al-Afify, A. D., Abdel-Satar, A. M. (2022): Heavy metal contamination of the Nile River environment, Rosetta branch, Egypt. Water, Air, and Soil Pollution, 233, 8, 302. https://doi.org/10.1007/s11270-022-05759-7
  6. Ali, E.M., Yones, A.M., Kenawy, T.B., Ibrahim, W.T., Abbas (2015): Effect of El-Sail Drain wastewater on Nile tilapia (Oreochromis niloticus) from the River Nile at Aswan, Egypt. Journal of Aquaculture Research and Development, 6, 1-7. https://doi.org/10.4172/2155-9546.1000294
  7. Ali, H.A.M., Abdel-Gawad, A.M., El-Sayed, M.A., Darwish, M.R., Abdel-Rahman, M.A. (2022): Assessment of fisheries production in the major Egyptian Inland Waters. Egyptian Journal of Aquatic Biology and Fisheries, 26,5, 221–239.
  8. Aly, W., Abouelfadl, K. Y. (2020): Impact of low-level water pollution on some biological aspects of redbelly tilapia (Coptodon zillii) in River Nile, Egypt. Egyptian Journal of Aquatic Research, 46, 3, 273-279. https://doi.org/10.1016/j.ejar.2020.08.001
  9. APHA. (2017): Standard methods for the examination of water and wastewater. In (pp. 1545). Washington, DC: American Public Health Association. American Water Works Association. Water Environment Federation (APHA). https://www.scirp.org/reference/referencespapers?referenceid=2459667
  10. Aziz, K.H.H., Mustafa, F.S., Omer, K.M., Hama, S., Hamarawf, R.F., Rahman, K.O. (2023): Heavy metal pollution in the aquatic environment: efficient and low-cost removal approaches to eliminate their toxicity: A review. RSC Advances, 13, 26, 17595–17610. https://doi.org/10.1039/D3RA00723E
  11. Bagenal, T., Tesch, F. (1978): Age and Growth. In: Methods for Assessment of Fish Production in Fresh Waters. Ed. T. Bagenal. Blackwell Scientific Publications, Oxford. https://archive.org/details/methodsforassess0000rick
  12. Bakhoum, S. A. (1994): Comparative study on length-weight relationship and condition factor of the genus Oreochromis in polluted and non-polluted parts of Lake Mariut Egypt. Bulletin of the National Institute Oceanography and Fisheries, Egypt, 20, 1, 201-210. https://niof-eg.com/wp-content/uploads/2022/06/comparative-study-on-length-weight-relationship.pdf
  13. Bakhoum, S. A., Faltas, S. N. (1994): The influence of water pollution upon the growth performance of Oreochromis aureus (Steind.) in Lake Mariut, Egypt. Bulletin of the National Institute Oceanography and Fisheries, Egypt, 20, 1, 275-283. https://niof-eg.com/wp-content/uploads/2022/06/the-influence-of-water-pollution-upon-the-growth.pdf
  14. Campana, S. E. (2001): Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods. Journal of Fish Biology, 59, 2, 197-242. https://onlinelibrary.wiley.com/doi/10.1111/j.1095-8649.2001.tb00127.x
  15. Elsayed, S., Hussein, H., Moghanm, F.S., Khedher, K.M., Eid, E.M., Gad, M. (2020): Application of irrigation water quality indices and multivariate statistical techniques for surface water quality assessments in the Northern Nile Delta, Egypt. Water, 12, 3300. https://www.mdpi.com/20734441/12/12/3300
  16. Famoofo, O.O., Abdul, W.O. (2020): Biometry, condition factors and length-weight relationships of sixteen fish species in Iwopin fresh-water ecotype of Lekki Lagoon, Ogun State, Southwest Nigeria. Heliyon, 6, 1, e02957. https://doi.org/10.1016/j.heliyon.2019.e02957
  17. Froese, R. (2006): Cube law, condition factor, and weight–length relationships: history, meta-analysis, and recommendations. Journal of Applied Ichthyology, 22, 4, 241–253. https://onlinelibrary.wiley.com/doi/10.1111/j.14390426.2006.00805.x
  18. Ali, A. M. S. (2023): Sugar Industry Wastewater Treatment (Case Study: Kom Ombo Factory). PhD Thesis, Faculty of Engineering Department, Alexandria university. https://doi.org/10.13140/RG.2.2.33614.23365
  19. Gad, M., Saleh, A. H., Hussein, H., Farouk, M., Elsayed, S. (2022): Appraisal of surface water quality of Nile River using water quality indices, spectral signature and multivariate modeling. Water, 14, 7, 1131. https://doi.org/10.3390/w14071131
  20. Gayanilo, F., Pauly, D. (1997): The FAO ICLARM stock assessment tools. FiSAT reference manual. FAO Computerized Information Series, Fisheries, FAO, Rome. https://www.fao.org/4/y5997e/y5997e00.htm
  21. Gupta, D., Tripathi, M. (2017): Length-weight relationships and condition factors of five cyprinidae species (Subfamily-Barbinae) from three diverse rivers of Uttar Pradesh, India. International Journal of Fisheries and Aquatic Studies 5, 2, 594-598 https://www.fisheriesjournal.com/archives/2017/vol5issue2/PartH/5-2-24-420.pdf
  22. Ighwela, K., Ahmed, A., Abol-Munafi, A. (2011): Condition factor as an indicator of growth and feeding intensity of Nile Tilapia fingerlings (Oreochromis niloticus) feed on different levels of maltose. American-Eurasian Journal of Agriculture and Environmental Science 11: 559-563. https://www.idosi.org/aejaes/jaes11(4)11/17.pdf
  23. Karuppiah, K., Sekar, S., Rajendran, K., Karuthapandian, K., Marimuthu, P. N., Ethiraj, K. (2021): Length-weight relationship of six demersal fish species from Gulf of Mannar, Bay of Bengal, Eastern Indian Ocean. Journal of Applied Ichthyology, 37:367–369. https://doi.org/10.1111/jai.14177
  24. Kassem, M. A. H., Farrag, M. M. S., Saber, M. A., Abouelfadl, K. Y. (2023): An Experimental Trammel Net in the River Nile, Aswan, Egypt Influencing the Age and Growth of the Nile tilapia Oreochromis niloticus (Linnaeus, 1758). Egyptian Journal of Aquatic Biology and Fisheries, 27, 2, 155–171. https://ejabf.journals.ekb.eg/article_291672_949d0de3153a87bc011b29a061069c2f.pdf
  25. Khallaf, E. A., Alne-naei, A. A., El-messady, F. A., Hanafy, E. (2020): Effect of climate change on growth and reproduction of Nile tilapia (Oreochromis niloticus, L.) from Bahr Shebeen Canal, Delta of Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 24, 5,483–509. https://ejabf.journals.ekb.eg/article_108404_86c73f582079db5297aa289becd844a3.pdf
  26. Le-Cern, E. D. (1951): The length-weight relationship and seasonal cycle in gonad weight and condition in perch Perca fluviatilis. Journal of Animal Ecology, 20, 2, 201-219. https://www.jstor.org/stable/1540
  27. Masresha, A. E., Skipperud, L., Rosseland, B. O., Zinabu, G. M., Meland, S., Salbu, B. (2021): Bioaccumulation of trace elements in liver and kidney of fish species from three freshwater lakes in the Ethiopian Rift Valley. Environmental Monitoring and Assessment, 193, 329. https://doi.org/10.1007/s10661-021-09083-1
  28. Mekkawy, I. A. A., Mahmoud, U. M., Abdeen, A. F., Abouelfadl, K. Y. (2025): Some Environmental Characteristics of Lake Nasser, Aswan Reservoir and the River Nile at Aswan, Egypt and Their Impacts on the Nile tilapia, Oreochromis niloticus (Linnaeus, 1758). Egyptian Journal of Aquatic Biology and Fisheries, 29, 2, 2241–2275. https://doi.org/10.21608/ejabf.2025.422222
  29. Pauly, D. (1980): A selection of simple methods for the assessment of tropical fish stocks. FAO Fisheries Circular No. 729. https://www.fao.org/4/X6845E/X6845E00.htm
  30. Pauly, D., Munro, J. L. (1984): Once more on the comparison of growth in fish and invertebrates. Fishbyte, 2, 1, 21. https://www.nafo.int/Portals/0/PDFs/sc/1984/scr-84-106.pdf
  31. Robinson, M. P., Motta, P. J. (2002): Patterns of growth and the effects of scale on the feeding kinematics of the nurse shark (Ginglymostoma cirratum). Journal of Zoology, 256, 4, 449-462.
  32. Shaalan, W. M. (2024): Hazardous effects of heavy metal pollution on Nile tilapia in the aquatic ecosystem of the Eastern Delta in Egypt. BMC Veterinary Research, 20, 1, 585. https://doi.org/10.1186/s12917-024-04367-3
  33. Simon, K. D., Mazlan, A. G. (2010): Trophic position of archerfish species (Toxotes chatareus and Toxotes jaculatrix) in the Malaysian estuaries. Journal of Applied Ichthyology, 26, 1, 84-88. https://doi.org/10.1111/j.1439-0426.2009.01351.x
  34. von Bertalanffy, L. (1938): A quantitative theory of organic growth (inquiries on growth laws II). Human Biology, 10, 2, 181–213. https://www.jstor.org/stable/41447359
  35. Yacoub, A. M., Mahmoud, S. A., Abdel-Satar, A. M. (2021): Accumulation of heavy metals in tilapia fish species and related histopathological changes in muscles, gills and liver of Oreochromis niloticus occurring in the area of Qahr El-Bahr, Lake Al-Manzalah, Egypt. Oceanological and Hydrobiological Studies, 50, 1–15. https://doi.org/10.2478/oandhs-2021-0001.
DOI: https://doi.org/10.2478/cjf-2026-0003 | Journal eISSN: 1848-0586 | Journal ISSN: 1330-061X
Language: English
Page range: 29 - 38
Submitted on: Oct 13, 2025
|
Accepted on: Jan 29, 2026
|
Published on: Mar 17, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Fatma G. Ahmed, Mahmoud M. S. Farrag, Ezzat Mohammed-AbdAllah, Khaled Y. Abouelfadl, published by University of Zagreb, Faculty of Agriculture
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.