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A comparative study of skeletal feature and swimbladder in four species of Sciaenids in the Iraqi marine waters, North-West Arabian Gulf | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 3, Volume 26, 2 (special Issue), 2013, Pages 37-54 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2013.111663 | ||
| Authors | ||
| A. R. M. Mohamed; A. K. T. Yesser; A. H. J. Abdullah | ||
| Abstract | ||
| A Comparative taxonomy study on four croakers species, Johnius belangerii, Johnieops sina, Pennahia anea and Johnius sp from Iraqi marine waters, North west Arabian gulf was carried out depend on the skeletal feature and swimbladder during the period from December 2009 to November 2010. The results revealed that all species differ in the number of rostral, marginal and mental pores, and in location of mouth and shape of the teeth and the form and number of gill teeth. The inner surface of otolith in P. anea contains oval curved shaped impression (or sulcus) and in other species tadpole -shaped impression. The species differ in the size of head bones, such as premaxilla, maxilla, dentary, articular and angular. The number of vertebras was 24 in each species. The shape of swimbladder in P. anea is carrot-shaped and well developed, and in other species hammer-shaped | ||
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