Study on the otolith mass asymmetry in Lutjanus bengalensis (Family: Lutjanidae) collected from Muscat city on the sea of Oman

Abstract

The sagittae mass asymmetry was studied in the teleost Lutjanus bengalensis and it is calculated as the difference between the mass of the right and left paired otoliths divided by average otolith mass. As in the case of other symmetrical fish species, the result of the present study showed that the absolute value of sagittae mass asymmetry (X) in L. bengalensis does not depend on fish length and otolith growth rate. On the other hand, the absolute value of otolith mass asymmetry is increased with the fish length. The value of sagittae mass asymmetry falls between -0.2 and +0.2. Özet: Umman Denizi, Muscat Şehrinde Lutjanus Bengalensis (Family: Lutjanidae) Otolit Kütle Asimetrisi Üzerine Bir çalışmaBu çalışmada; teleost Lutjanus bengalensis'in kütle asimetrisi, sağ ve sol otolit çiftlerinin kütleleri, ortalama otolit kütlesine bölümü ile hesaplanarak çalışılmıştır. Diğer simetrik balık türlerinde olduğu gibi, bu çalışmada da sagittae kütle asimetrisinin mutlak değeri (X)'nin L. Bengalensis türünde de balığın boyuna ve otolit büyüme oranına bağlı olmadığı görülmüştür. Diğer yandan mutlak otolit kütle asimetrisinin boy uzadıkça artmıştır. Sagittae kütle asimetri değeri -0.2 ile +02 arasında hesaplanmıştır.

Otolith Mass Asymmetry in Two Parrotfish Species, <i>Chlorurus sordidus</i> (Forsskal, 1775) and <i>Hipposcarus harid</i> (Forsskal, 1775) from Hurghada, Red Sea Coast of Egypt

“…The difference between the otolith masses was investigated in Beryx splendens and Lutjanus bengalensis and found to increase with the increased fish length (Jawad et al, 2012), but practically did not change in Rhynchorhamphus georgi (Jawad et al, 2011). This difference seems to be connected with that in many fish species because of their high variability of the left and right weight difference and the fish length is clearly revealed in analysis of the sufficiently large sample when individuals significantly differ in size (Lychakov et al, 2006).…”

Otolith fluctuating asymmetry inBoops boops(Actinopterygii, Sparidae) from two marine stations (Bizerte and Kelibia) in Tunisian waters

“…During the last decades, study of the morphological characteristics of otoliths, in particular their shape, length, width, area, thickness and weight, has been used to test both genetic and environmental stressors and as a bioindicator to test the differentiation of populations and the variance in stock discrimination studies using Elliptical Fourier analysis (EFA) (Valentine et al, 1973;Campana & Casselman, 1993;Begg & Waldman, 1999;Torres et al, 2000;Smith et al, 2002;Panfili et al, 2005;Turan, 2006;Jawad et al, 2010Jawad et al, , 2011Jawad et al, , 2012aJawad et al, , 2012bJawad et al, , 2012cJawad et al, , 2016Jawad et al, , 2020Vignon & Morat, 2010;Cañás et al, 2012;Jawad, 2012Jawad, , 2013Lord et al, 2012;Treinen-Crespo et al, 2012;Mahe et al, 2014;Trojette et al, 2014Trojette et al, , 2015Abu El-Regal et al, 2016;Brophy et al, 2016;Hüssy et al, 2016;Rebaya et al, 2016Rebaya et al, , 2017Al-Busaidi et al, 2017;Fatnassi et al, 2017;Ider et al, 2017;Khedher et al, 2017;Rodgveller et al, 2017;Chakour & Elouizgani, 2018;Khemiri et al, 2018;Kontaş et al, 2018;Mejri et al, 2018;Wang et al, 2018;…”

Otolith Mass Asymmetry in <i>Lutjanus ehrenbergii</i> (Peters, 1869) Collected from the Sea of Oman

“…The results obtained for Beryx splendens and Lutjanus bengalensis (Jawad et al, 2012) and Rhynchorhamphus georgi appeared to be species specific due to their high inconsistency in weight of the left and right otolith. In the analysis where a large number of specimens is used with clear differences in the fish size, such discrepancies in the otolith weight between the two sides of fish head become minimal (Lychakov et al, 2006).…”

“…Numerous studies on the weight difference of the otolith of fishes from the Omani waters were published in the recent years (i.e., Jawad et al, 2010;Jawad et al, 2011;Ambuali et al, 2011;Jawad et al, 2012;Jawad, 2013), but there is no such study on L. ehrenbergii. Therefore, the present work is a significant addition to the knowledge of otolith mass asymmetry in the area of Sea of Oman.…”