Data/hora: 05/06/2024 17:23:42

Provedor de dados: | 104
País: | Brazil
Título: | Dynamics of gonadal development of Aegla platensis Schmitt (Decapoda, Anomura, Aeglidae)
Autores: | Sokolowicz,Carolina C.; Bond-Buckup,Georgina; Buckup,Ludwig.
Data: | 2006-12-01
Ano: | 2006
Palavras-chave: | Aeglids; Gonadosomatic index; Reproduction.
Resumo: | One way to estimate gonadal development through the reproductive cycle is to observe the growth of the gonads related to the organs used to store energy. The aim of this study was to follow the gonadosomatic and hepatosomatic indexes during annual cycle of Aegla platensis Schmitt, 1942. Adult animals were collected in Taquara, Rio Grande do Sul, Brazil (29°46'S, 50°53'W). Males and females were initially weighed and dissected and had their gonads and hepatopancreas (HP) removed and weighed in order to estimate the Gonadosomatic (GI) and hepatosomatic (HI) indexes. In females, the indexes were also compared to the degree of development of the ovaries. In males the GI showed a peak of gonadal development in the autumn (p &lt; 0.05), just when the HI showed a decrease (p &lt; 0.05). Females showed a rise in the GI at the end of summer and beginning of autumn (p &lt; 0.05). In females, GI values increased as the ovary matured. In A. platensis, for both males and females, the HI never showed values lower than the GI, which may indicate that these aeglids show a different pattern of energy utilization from other decapods, where as gonadal development peaks the HI decreases markedly.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752006000400023
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81752006000400023
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.23 n.4 2006
Fonte: | info:eu-repo/semantics/openAccess