Fadia Dib(1)* Adib Saad(2) and Abdellatif Ali (3)

(1). Department of animal production, Faculty of Agriculture, Tishreen University, Lattakia, Syria

(2). Department of Basic Sciences, Faculty of Agriculture, Tishreen University, Lattakia, Syria

(3).General commission for Fisheries, Jable, Syria

(*Corresponding author: Fadia Di. E-Mail: fadiadib6@gmail.com).

Received: 26/03/2020 Accepted: 21/06/2020

Abstract

This research carried out on /263/ individuals of the Tristramella simonis fish caught from Nahr Al-kabeer Alshamali from July 2017 to June 2018, using gill nets. Total length and weight of each specimen were recorded with accuracy of 0.1 cm and 0.01 g, respectively. The total length of specimens ranged between (9.5-16.5cm) and weights between (19.5- 112.27g). Correlation relationships were calculated between several variables, where the correlation of the total length with weight of females was: W = 0.1079L2.4092 and for males W = 0.1078L2.4087, These results show an allometric non-standard growth of this fish species. The growth state of the analysed specimens was evaluated by Relative Condition Factor (RCF%), where changes in its value in males that the food savings in the muscles do not have a direct role in the maturation of gonads, while the case in females refers to that it consumes food stocks to direct the body’s energy to produce gametes. giving 128 females (59.3%) and 88 males (40.7%, making ratio 1F/0.7M; 40 individuals remained undetermined gender Morphometric measurements gave.

Keyword: Tristramella simonis, Cichlidae, Al-kabeerAlshamali River, condition factor, Sex ratio .

Full paper in Arabic: PDF