Morphological variation and Taxonomic validation of gill raker characteristics in Caspian marine shad  (Clupeidae: Alosa braschnikowi)

Alavi-Yeganeh, Mohammad Sadegh; Razavi, Somayeh

Volume 5, Issue 4 (Spring 2016) J. Aqua. Eco 2016, 5(4): 122-127 | Back to browse issues page

‎ 20.1001.1.23222751.1395.5.4.13.4

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Alavi-Yeganeh M S, Razavi S. Morphological variation and Taxonomic validation of gill raker characteristics in Caspian marine shad (Clupeidae: Alosa braschnikowi). J. Aqua. Eco 2016; 5 (4) :122-127
URL: http://jae.hormozgan.ac.ir/article-1-204-en.html

Morphological variation and Taxonomic validation of gill raker characteristics in Caspian marine shad (Clupeidae: Alosa braschnikowi)

Mohammad Sadegh Alavi-Yeganeh ^*

, Somayeh Razavi

Abstract: (5117 Views)

We used 50 specimens of Alosa braschnikowi (A. brschnikowi) to study the growth effect on Gill raker morphology. Gill rakers counted as 26-47 which increased in relation to increase in TL (P<0.05). Gill raker lengths and the length:width ratio decreased with a high coefficient of relationships (R²=0.818 and 0.634 subsequently) regarding the increase of TL. The proportion of gill raker length to gill filament length decreased with increased TL. Results indicated selective filter feeding behavior of A. braschnikowi and variation of gill raker morphological characteristics with TL increase during growth.

Keywords: Alosabraschnikowi, Gill Raker, Shad, Taxonomy

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Type of Study: Short document | Subject: Special
Published: 2016/05/29