Data/hora: 06/06/2024 15:42:00

Provedor de dados: 	103	
País: 	Brazil	
Título: 	Analysis of reproductive biology and spawning season of the pink ear emperor Lethrinus lentjan , from marine ecosystem	
Autores: 	Younis,Elsayed M.; Al-Asgah,Nasser A.; Abdel-Warith,Abdel-Wahab A.; Gabr,Mohamed H.; Shamlol,Fozi S.	
Data: 	2020-01-01	
Ano: 	2020	
Palavras-chave: 	Lethrinus lentjan; Red sea; Reproduction; Spawning.	
Resumo: 	ABSTRACT A total of 593 samples of Lethrinus lentjan (Lacepede, 1802) were collected from the Red Sea, Jeddah, Saudi Arabia, to study their productive biology and spawning season of the local population. Sampling was carried out on a monthly basis for a period of one year. The monthly sex ratios indicated that females were dominant throughout the study period, with an overall male:female sex ratio of 1:7.98, although males were larger than females. The highest monthly performance maturation index (PMI), as well as the male and female gonadosomatic index (GSI) and ovarian maturation rate (OMR) were observed in February and March. Histological examination of the gonads confirmed the process of sexual transformation in this fish species, wherein individuals mature first as female, and then change sex to male (protogynous hermaphroditism). Histological sections also showed that the sexual maturation of males of L. lenjtan comprised three main stages, while the sexual development of females could be classified into four main stages. Extended spawning in the form of batches released during different months throughout the year were recorded for this fish species, with the main spawning season in February and March, and an additional, shorter spawning season in September.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100308	
Editor: 	Sociedade Brasileira de Zoologia	
Relação: 	10.3897/zoologia.37.e48475	
Formato: 	text/html	
Fonte: 	Zoologia (Curitiba)  v.37 2020	
Fonte: 	info:eu-repo/semantics/openAccess