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The present study was aimed to investigate sexual dimorphism in morphometric and meristic characters of three carangid species Carangoides ferdau, Carangoides malabaricus, and Gnathanodon speciosus from the Red Sea, Egypt. The basic statistics of the morphometric indices (relative to SL or HL) of the three carangid species considered sexual dimorphism in C. ferdau, C. malabaricus, and G. speciosusregarding some indices that are size-free and valid as a discriminating tool between males and females of the examined species. The type of size allometry of males and females of the three studied species was estimated according to the bivariate concept. No sexual dimorphism was observed in the meristics characters. Additional features should be investigated to determine sexual dimorphism to facilitate the identification for conservatory purposes and correct management.



Morphometric Meristic sexual dimorphism Red Sea Egypt.

Article Details

Author Biographies

Ahmed A. MUSTAFA, Environmental Research, Natural conservation sector, Egyptian Environmental Affairs Agency (EEAA).

Fisheries and Aquaculture Technology

Ashraf S. MOHAMMAD, National Institute of Oceanography and Fisheries (NIOF)

Hurghada, Red Sea

Mahmoud M.S FARRAG, Department of Zoology, Al-Azhar University, (Assuit Branch).

Department of Zoology, Al-Azhar University, (Assuit Branch).

Alaa G.M. OSMAN, Department of Zoology, Al-Azhar University, (Assuit Branch).

Department of Zoology, Al-Azhar University, (Assuit Branch).
How to Cite
MUSTAFA, A. A., MOHAMMAD, A. S., FARRAG, M. M., & OSMAN, A. G. (2021). Sexual dimorphism of morphological characters in three carangid species from the Red Sea, Egypt. Iranian Journal of Ichthyology, 8(3), 223–235.


    Al-Marzouqi, A.; Jayabalan N. & Al-Nahdi A. 2013. Length based growth and stock assessment of the longnose trevally Carangoides chrysophrys (Cuvier, 1833) from the Arabian Sea coast of Oman. Indian Journal of Fisheries 60 (2): 1-6.
    Bannikov, A.F. 1987. On the taxonomy, composition and origin of the Family Carangidae. Journal of Ichthyology 27: 1-8.
    Basmidi, A.A.M. 2004. Studies on the population dynamics of some species of genus Lutjanus (family: Lutjanidae) from the Red Sea, Egypt. Ph.D. Thesis. Assiut University, Egypt.
    Berry, F.H. & Smith-Vaniz W.F. 1978. Carangidae. In: Fischer, W. (ed.), 1978. FAO Species Identification Sheets for Fishery Purposes. Western Central Atlantic (Fishing Area 31). Western Central Atlantic. Fishing area 31. Rome, FAO.
    Cadrin, S. 2005. Theme Session K-Multidisciplinary Approaches to the Identification of Stock Structure of Small Pelagics: Implications for Assessment and Sustainable Management, Conveners: Emma Hatfield (UK) and Doug Ha. Annual Report, Canada.
    Cheng, Q.; Lu, D. & Ma, L. 2005. Morphological differences between close populations discernible by multivariate analysis: A case study of genus Coilia (Teleostei: Clupeiforms). Aquatic Living Resources 18: 187-192.
    Deepti, V.A.I.; Shrikanya, K.V.L. & Sujatha, K. 2013. Morphometric variation and allozyme electrophoretic studies in hind grouper species of genus Cephalopholis (Epinephelidae) off Visakhapatnam, Central Eastern coast of India. International Journal of Science and Research 4(3): 2319-7064.
    Elamin, S.M.; Ambak, M.A.; Samoilys, M.A. & Hamza M.E. (2011): Some morphometric relationships of Coral Trouts Plectropomus pessuliferus and Plectropomus areolatus inhabiting Sudanese Red Sea. Advances in Environmental Biology Journal 5(9): 2860-2865.
    Esmaeili, H.R.; Sayyadzadeh, G. & Chermahini, M.A. 2017. Sexual dimorphism in two catfish species, Mystus pelusius (Solander 1794) and Glyptothorax silviae Coad, 1981 (Teleostei: Siluriformes). Turkish Journal of Zoology 41: 144-149.
    Farrag, M.M.S.; Elhaweet, A.A.K.; Akel, E. Kh.A. & Moustafa, A.M. 2016. Occurrence of puffer fishes (Tetraodontidae) in the eastern Mediterranean, Egyptian coast-filling in the gap. BioInvasions Records 5(1): 47-54.
    GAFRD. 2018. Publications of the General Authority for Fish Resources Development. Annual Fishery Statistics Report, Ministry of Agriculture. Egypt. (In Arabic).
    Huxley, J.S. 1932. Problems of Relative Growth. Methuen, Co. LTD, London. 276 p.
    Jawad, L.A. 2015. Study of the vertebral column of the onion trevally, Carangoides caeruleopinnatus (Teleostei: Carangidae) collected from the Sea of Oman. Italian Journal of Zoology 82(1): 41-47.
    Katsuragawa, M. & Matsuura, Y. 1992. Distribution and abundance of carangid larvae in the southeastern Brazilian bight during 1975-1981. Boletim do Instituto Oceanográfico 40(1/2): 55-78.
    Lawson, E.O. 2010. Morphometric measurements and meristic counts in mudskipper (Periophthalmus papilio) from mangrove swamps of Lagos lagoon, Nigeria. Journal of Applied Biosciences 34: 2166-2172.
    Lima-Filho, P.A.; Bidau, C.J.; Alencar, C.E.R.D. & Molina, W.F. 2017. Latitudinal influence on the sexual dimorphism of the marine fish Bathygobius soporator (Gobiidae: Teleostei). Evolutionary Biology 44: 374-385.
    Mahmoud, U.M.; Mehanna, S.F. & Mohammad, A.S. 2016. Sexual dimorphism of morphometrics and meristics of Carangoides bajad (Forsskål, 1775) and Caranx melampygus (Cuvier, 1833) from the Southern Red Sea, Egypt. Inter. International Journal of Science and Research 5(1): 448-456
    Masood, Z.; Yasmeen, R.; Rehaman, F.; Haider, M.S.; Zehra, L.; Hossain, M.Y.; Rehman, H.; Asim U.; Ahmed, W. & Shah, Q.U. 2015. Comparative studies on some morphometric and meristic characteristics of the scales in four Mugilid species of the family Mugilidae for identifying their significance in taxonomy. Biological Forum–An International Journal 7(1): 176-184.
    Mazlan, A.G.; Chung, Y.S.; Zaidi, C.C.; Samat, A.; Arshad, A.; Seah, Y.G.; Alam, G.M. & Simon, K.D. 2012. Meristic, Morphometrics and length-weight relationship of tropical Silverside, Atherinomorus duodecimalis (Valenciennes in Cuvier and Valenciennes, 1835) in seagrass and mangrove habitats of Tinggi Island, Johor, Malaysia. Asian Journal of Animal and Veterinary Advances 7(10): 921-927.
    Mekkawy, I.A.A. & Mohammad, A.S. 2011. Morphometrics and meristics of the three Epinepheline Species: Cephalopholis argus (Bloch And Schneider, 1801), Cephalopholis miniata (Forsskal, 1775) and Variola louti (Forsskal, 1775) from the Red Sea, Egypt. Journal Biological Sciences 11(1): 10-21.
    Mohammad, A.S. 2007. Population dynamics and stock Assessment of some species of genus Cephalopholis and genus Variola from the red sea, Egypt. M.Sc. Thesis. Assiut University, Egypt.
    Mohammad, A.S. 2016. Biological studies, stock assessment and fisheries management of Carangoides bajad (Forsskal, 1775) and Caranx melampygus (Cuvier, 1833) from the Red Sea, Egypt. Ph.D. Thesis. Assiut University, Egypt.
    Nelson, J.S. 1994. Fishes of the World, 3rd edition. John Wiley and Sons, New York, NY. 523 p.
    Obady, Y.H. 2003. Biological and Taxonomic studies on some species of genus Siganus (Family: Siganidae) From the Red Sea Egypt. M.Sc. Thesis. Assiut University, Egypt.
    Oliveira, R.F. & Almada, V.C. 1995. Sexual dimorphism and allometry of external morphology in Oreochromis mossambicus. Journal of Fish Biology 46: 1055-1064.
    Osman, A.G.M. 2000. Taxonomical and biological studies of some species of genus Epinephelus (Family: Serranidae) from the Red Sea, Egypt. M.Sc. Thesis. Al-Azhar Univ., Cairo.
    Pramono, T.B.; Arfiati, D.; Widodo, M.S. & Yanuhar, U. 2019. Sexual dimorphism in morphometric characters of Mystus singaringan from Klawing River in Central Java, Indonesia: Strategic instruction for conservation development. Biodiversitas 20(4): 1133-1139.
    Quilang, J.P.; Basiao, Z.U.; Pagulayan, R.C.; Roderos, R.R. & Barrios, E.B. 2007. Meristic and morphometric variation in the silver perch, Leiopotherapon plumbeus (Kner, 1864), from three lakes in the Philippines. Journal of Applied Ichthyology 23: 561-567.
    Randall, J.E. 1995. Coastal Fishes of Oman. University of Hawaii Press, Honolulu, Hawaii.
    Randall, J.E.; Allen, G.R. & Steene, R.C. 1997. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii.
    Sajina, M.; Chakraborty, S.K.; Jaiswar, A.K. & Sudheesan, D. 2013. Morphometric and meristic analyses of horse Mackerel, Megalaspis cordyla (Linnaeus, 1758) populations along the Indian coast. Indian Journal of Fisheries 60(4): 27-34.
    Shaurabh, S.; Sridhar, N.; Barlya, G.; Hemaprasanth; Raghavendra, C.H.; Ragunath, M.R. & Jayasankar, P. 2013. Sexual dimorphism in fishes. Aqua International Journal 30-32.
    Simon, K.D.; Bakar, Y.; Temple, S.E. & Mazlan, A.G. 2010. Morphometric and meristic variation in two congeneric archer fishes Toxotes chatareus (Hamilton 1822) and Toxotes jaculatrix (Pallas 1767) inhabiting Malaysian coastal waters. Journal of Zhejiang University 11 (11): 871-879.
    Soliman, F.M.; Mehanna, S.F. Soliman, A.H. & Baker, S.T. 2018. Meristic and morphometric characteristics of five-Lined Snapper, Lutjanus quinquelineatus (Bloch, 1790) from the Red Sea, Egypt. Egyptian Journal of Aquatic Biology & Fisheries 22(1): 41-48.
    Suryaningsih, S.; Sagi, M.; Kamiso, H.N. & Hadisusanto, S. 2014. Sexing in the red chick barb Puntius orphoides (Valenciennes, 1863) by using truss morphometrics method. Biosfera 31(1): 8-16.
    Zubia, M.; Rehana, Y.F.; Katselis, G.; Omer, M.T.; Zehra, L.; Hossain, Y.M. & Samee, H.M. 2015. Comparative survey of morphometric and meristic studies of four mullet species of family Mugilidae from Pakistan in relation to total body length. Indian Jurnal of Geo-Marine Sciences 44 (4): 562-572.