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Abstract

Ten thousand four hundred and thirty-five fish were collected from January 2021 to February 2022, belonging to 71 species distributed across 39 families and 20 orders. The study included the tidal zone of the Shatt al-Arab estuary in the northwest of the Arabian Gulf. Two methods used to collection the fishes; fixed gill nets and trowel nets. Various diversity indices, relative abundance, and richness were assessed. Several biodiversity indices were used to assess the area biologically and ecologically which Species diversity for Shannon and Simpson, species richness for Margalef and Menhinick, dominance for Berger-Parker, species similarity for Jaccard, numerical similarity for Bray – Curtis, and evenness for Peilou index. Nematalosa nasus had the highest relative abundance, which was recorded at 24.53%. However, the lowest relative abundance was observed for 20 species, with a value of 0.01% with only one individual. The Carangiformes had the highest percentage of 18.31% and the lowest percentage of 1.41 % for many orders only, with one species recorded. The Margalef index had its highest value on June 5.24 and its lowest on December 1.24. The Menhinick index had its highest value of 1.53 in October and its lowest value of 0.71 in November. The Shannon Index reached a peak of 2.69 in January 2021, and fell to 0.98 in September. The Simpson index recorded the highest value of 0.92 in January 2021 and the lowest value of 0.37 in September.  The Peilou index reached its highest value of 0.965 in December, while its lowest value was 0.294 in September. The Jaccard index had its highest value of 0.667 between January 2021 and March, while its lowest value was 0.079 between December, June, and July. The highest value for the Bray-Curtis index occurred between July and August, reaching 0.644. In contrast, the lowest value observed was 0.005 between July and December.

Keywords

Diversity Dominance Evenness Occurrence Richness Similarity

Article Details

How to Cite
Abbas, A. F. ., Al-Khafaji , A. H. ., & Hussain, N. A. . (2024). The Composition and Diversity Indices of the Fish Assemblage in the Tidal Mudflats of the Shatt Al-Arab Estuary in the Northwest Arabian Gulf. Basrah Journal of Agricultural Sciences, 37(1), 247–264. https://doi.org/10.37077/25200860.2024.37.1.19

References

  1. Abdullah, A. (2017). Diversity, abundance and community structure of fishes in the lower part of the Euphrates River Southern Iraq. Mesopotamian Journal of Marine Science, 32(2), 64-77.
  2. https://doi.org/10.58629/mjms.v32i2.62
  3. Abou-Seedo, F., Clayton, D. A., & Wright, J. M. (1990). Tidal and turbidity effects on the shallow-water fish assemblage of Kuwait Bay. Marine Ecology, 65(3), 213-223.
  4. http://hdl.handle.net/10222/30083
  5. Ali, A. H., Adday, T. K., & Khamees, N. R. (2018). Catalogue of marine fishes of Iraq. Biological and Applied Environmental Research, 2(2), 298-368.
  6. Al-Faisal, A., & Mutlak, F. (2018). Survey of the marine fishes in Iraq. Bulletin of the Iraq Natural History Museum, 15, 163-177. https://doi.org/10.26842/binhm.7.2018.15.2.0163
  7. Al-Ghadban, A. (2002). Geological oceanography of the Arabian Gulf. Pp. 23-39. In: Khan, N. Y., Munawar, M., & Price, A. R. G. (2014). (Eds.). The Gulf ecosystem Health and Sustainability. Michigan State University Press.
  8. https://doi.org/10.14321/j.ctt1tm7jkg
  9. Al-Mahmood, H. K. H. (2023). Morphoscopic changes in Iraqi territorial waters and their border repercussions. Iraqi Journal of Aquaculture, 19(1), 53–74.
  10. https://doi.org/10.58629/ijaq.v19i1.436
  11. Al-Shamary, A. & Younis, K. (2022). Status of commercial fish catch in the Iraqi marine waters, Arabian Gulf. Bulletin of the Iraq Natural History Museum. 17(2), 155-167.
  12. https://doi.org/10.26842/binhm.7.2022.17.2.0155
  13. Berger, W. H., & Parker, F. L. (1970). Diversity of planktonic foraminifera in deep-sea sediments. Science, 168, 3937, 1345–1347. http://doi.org/10.1126/science.168.3937.1345
  14. Bray, J. R. & Curtis, J. T. (1957). An ordination of the upland forest communities of southern Wisconsin. Ecological Monographs, 27, 325-349. https://doi.org/10.2307/1942268
  15. Carpenter, K. E., Krupp, F., Jones, D. A., & Zajonz, U. (1997). FAO species identification field guide for fishery purposes: living marine resources of Kuwait, Eastern Saudi Arabia, Bahrain, Qatar, the United Arab Emirates. Food and Agriculture Organization of the United Nations, Rome, FAO, 293pp.
  16. https://www.fao.org/3/v8729e/v8729e00.htm
  17. Esmaeili, H. R., Masoudi, M., & Mehraban, H. R. (2014). Assignment of Acanthopagrus populations in the Persian Gulf drainage system of Iran to Acanthopagrus arabicus Iwatsuki, 2013 (Perciformes: Sparidae). Iranian Journal of Ichthyology, 1(1), 23-28. http://ijichthyol.org/index.php/iji/article/view/49
  18. Evans, G. (2023). Persian Gulf. Encyclopedia Britannica.
  19. https://www.britannica.com/place/Persian-Gulf
  20. Fischer, W., & Bianchi, G. (1984). FAO Species identification sheets for fishery purposes Western Indian Ocean, Fishing Area 51. Prepared and printed with the support of the Danish International Development Agency (DANIDA). Rome, Food and Agricultural Organization of the United Nations, Vols. 1-6.
  21. https://www.fao.org/3/ad468e/ad468e00.htm
  22. Freyhof, J., Kaya, C., & Ali, A. (2021). Chapter 35: A critical checklist of the inland fishes native to the Euphrates and Tigris. Pp: 815-855. In Jawad, L. A. (Editor). Tigris and Euphrates Rivers: Their Environment from Headwaters to Mouth Drainages. Springer. Cham. 1640pp. https://doi.org/10.1007/978-3-030-57570-0_35
  23. Fricke, R., Eschmeyer, W. N. & van der Laan, R. (2023). Eschmeyer's Catalog of Fishes: Genera, Species, References. Electronic version accessed. http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp
  24. Froese, R. & Pauly, D. Editors (2023). FishBase. World Wide Web. Electronic publication.
  25. www.fishbase.org
  26. Ghanbarifardi, M., & Malek M. (2006). Permanent intertidal fish from the Persian Gulf and Gulf of Oman, Iran. Iranian Journal of Animal Biosystematics (IJAB). 3(1), 1-14.
  27. https://doi.org/10.22067/IJAB.V3I0.382
  28. Ghanbarifardi, M., & Zarei, R. (2021). Otolith shape analysis of three mudskipper species of Persian Gulf. Iranian Journal of Fisheries Sciences, 20, 333-342.
  29. https://jifro.ir/browse.php?a_id=4449&sid=1&slc_lang=en
  30. Haak, Ch. (2019). Physical and Biological Drivers of Juvenile Fish Distributions in Unstructured Shallow Tropical Nearshore Habitats. Doctoral Dissertations. 333, 1607pp.
  31. https://doi.org/10.7275/14188675
  32. Hussain, N. A., Ali, T. S., & Younis, K. H. (1999). Temporal and spatial movements of common fishes to the mudflats of Iraq, Northwest Arabian Gulf. Pakistan Journal of Biological Science, 5(2), 99-112.
  33. https://www.academia.edu/76295168/Temporal
  34. Jabado, R. W., Al Ghais, S. M., Hamza, W., Shivji, M. S., & Henderson, A. C. (2015). Shark diversity in the Arabian/Persian Gulf higher than previously thought: insights based on species composition of shark landings in the United Arab Emirates. Marine Biodiversity, 45(4), 719-731. https://doi.org/10.1007/s12526-014-0275-7
  35. Jaccard, P. (1912). The distribution of the flora in the alpine zone. The New Phytologist, 11(2), 37-50.
  36. https://doi.org/10.1111/j.1469-8137.1912.tb05611.x
  37. Krebs, C. J. (2014). Ecological methodology. 3rd ed. Addison Wesley Educational Publishers, Inc., 745pp. https://www.zoology.ubc.ca/~krebs/books.html
  38. Margalef, R. (1958). Information Theory in Ecology. General Systems, 3, 36-71. http://hdl.handle.net/10261/165563
  39. Menhinick, E.F. (1964). A comparison of some species-individuals diversity indices applied to samples of field insects. Ecology, 45, 859-861 https://doi.org/10.2307/1934933
  40. Murdy, E. O. (1989). A taxonomic revision and cladistic analysis of the Oxudercine gobies (Gobiidae: Oxudercinae). Records of the Australian Museum, Supplement, 11, 1-93.
  41. https://doi.org/10.3853/j.0812-7387.11.1989.93
  42. Pielou, E. C. (1966). The measurement of diversity in different types of biological collections. Journal of Theoretical Biology, 13, 131–144. https://doi.org/10.1016/0022-5193(66)90013-0
  43. Randall, J. E. (1995). Coastal fishes of Oman. Crawford House Publishing, 456pp. https://books.google.iq/books/about/Coastal_Fishes_of_Oman.html?id=LSuT-3GQL-QC&redir_esc=y
  44. Randall, J. E., Downing, N., Mccarthy, L. J., Stanaland, B. E., & Tarr, A. B. (1994). Fifty-one new records of fishes from the Arabian Gulf. Fauna of Arabia, 14, 220-258.
  45. https://zoobank.org/References/a5624247-e6d1-420c-aa6b-9cc03bff7469?region=zh-cn
  46. Shannon, C. E., & Weaver, W. (1949). The Mathematical Theory of Communication. The Bell System Technical Journal, 27(3), 379–423. https://doi.org/10.1002/j.1538-7305.1948.tb01338.x
  47. Sheppard, C.R.C. (1993). Physical Environment of the Gulf Relevant to Marine Pollution. Marine Pollution Bulletin, 27, 3-8. https://doi.org/10.1016/0025-326X(93)90003-3
  48. Siddig, N., Al-Subhi, A. M., & Alsaafani, M. A. (2019). Tide and mean sea level trend in the west coast of the Arabian Gulf from tide gauges and multi-missions satellite altimeter. Oceanologia, 61(4), 401-411.
  49. https://doi.org/10.1016/j.oceano.2019.05.003
  50. Simpson, E. H. (1949). Measurement of diversity. Nature, 163, 4148, 688–88.
  51. https://doi.org/10.1038/163688a0
  52. Smith, J. L. B. (1959a). Gobioid fishes of the families Gobiidae, Periophthalmidae, Trypauchenidae, and Kraemeriidae of the western Indian Ocean. Icthyological Bulletin, 13, 184-225.
  53. http://hdl.handle.net/10962/d1018774
  54. Smith, J. L. B. (1959b). Fishes of the families Blenniidae and Salariidae of the western Indian Ocean. Icthyological Bulletin, 14, 227-252. http://hdl.handle.net/10962/d1018775
  55. Springer, V. G., & Williams, J. T. (1994). The Indo-West Pacific Blenniid fish genus Istiblennius reappraised: a revision of Istiblennius, Blenniella and Paralticus new genus. Smithsonian Institution Press. Washington, D. C. 193pp.
  56. https://doi.org/10.5479/si.00810282.565
  57. Tobin, A., Mapleston, A., Harry, A., & Espinoza, M. (2014). Big fish in shallow water; use of an intertidal surf-zone habitat by large-bodied teleosts and elasmobranchs in tropical northern Australia. Environmental Biology of Fishes, 97(7), 821-838.
  58. https://doi.org/10.1007/s10641-013-0182-y
  59. Tyler, A. V. (1971). Periodic and Resident Components in Communities of Atlantic Fishes. Journal of the Fisheries Research Board of Canada, 28(7), 935-946.
  60. https://doi.org/10.1139/f71-139
  61. Wright, J. M., Clayton, D. A., & Bishop, J. M. (1990). Tidal movements of shallow water fishes in Kuwait Bay. Journal of Fish Biology, 37(6), 959-974. https://doi.org/10.1111/j.1095-8649.1990.tb03599.x