@article {62639,
	title = {Growth and reproduction of two cichlids Tilapia zillii and Hemichromis bimaculatus (Teleostei: Cichliformes) in the Saharan hydrosystems (Algeria)},
	journal = {Iranian Journal of Ichthyology (IJI)},
	volume = {8},
	number = {4},
	year = {2021},
	month = {2021},
	pages = {322-333},
	abstract = {
	In this\&nbsp; study, we have studied the length-weight relationship, condition factor (Kr), gonado-somatic index (GSI) and size at first maturity of two Cichlidae species (Tilapia zillii\&nbsp;and\&nbsp;Hemichromis bimaculatus) from two lakes (Megarine and Temacine) of the northern Sahara (Algeria). Some 159 specimens of\&nbsp;H. bimaculatus\&nbsp;and 52\&nbsp;T. zillii\&nbsp;were sampled between September 2012 and July 2013. The length-weight relationship revealed an isometric value b (3.0) for\&nbsp;H. bimaculatus\&nbsp;from Lake Megarine, while there was no significant difference for\&nbsp;T. zillii\&nbsp;from Lake Temacine. We noted a negative allometric growth pattern (b\&lt;3) of males and females of\&nbsp;H. bimaculatus. Both sexes of\&nbsp;T. zillii\&nbsp;grew isometrically. The Kr did not differ significantly between months for the two studied species. It was less than 1 only in November and July for\&nbsp;H. bimaculatus. For\&nbsp;T. zillii, the monthly mean of Kr was always greater than 1 for all the studied period. The first sexual maturity of 50\% of males was observed at 52.75mm in\&nbsp;H. bimaculatus\&nbsp;and 61mm in\&nbsp;T. zillii. The smallest mature female had a total length of 60.26mm and 66mm for\&nbsp;H. bimaculatus\&nbsp;and\&nbsp;T. zillii\&nbsp;respectively. The reproduction period of\&nbsp;H. bimaculatus\&nbsp;and\&nbsp;T. zillii\&nbsp;begins in March with an extended spawning period. The overall sex ratio was in favor of females (1: 0.7) in\&nbsp;H. bimaculatus, and in favor of males in\&nbsp;T. zillii\&nbsp;(1: 1.33). For both species, the sex ratio varied according to months and size classes.

},
	url = {https://ijichthyol.org/index.php/iji/article/view/688},
	author = {Cherif Ghazi and Abdelkrim Si Bachir}
}
