Gonad Homogeneity, Maturity, and GonadoSomatic Index of Wild Indonesian Eel (Anguilla bicolor bicolor McClelland, 1844)

Retnoaji, Bambang and Prasetyo, Adhi and Septriani, Nur Indah and Sofyantoro, Fajar and Mochioka, Noritaka (2023) Gonad Homogeneity, Maturity, and GonadoSomatic Index of Wild Indonesian Eel (Anguilla bicolor bicolor McClelland, 1844). Natural and Life Sciences Communications, 22 (3). ISSN 28220838

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Abstract

The current study was conducted to investigate the homogeneity of gonad maturity in Anguilla bicolor bicolor, and whether Gonado-Somatic Index (GSI) is a reliable indicator of this maturity. Eel samples were obtained from fishermen at Segara Anakan, Cilacap, Central Java, Indonesia in December 2015, and May 2017. Fourteen specimens were analyzed based on their gonad histological structure from cranial, medial, and caudal portions and were measured for GSI values. The present study shows that there is a synchronization of oocyte maturity time on the medial, cranial and caudal parts. It might suggest that during the maturation process, Anguilla develop into silver eels and return to the sea to spawn. The highest GSI value is 2.67 in the female eel containing the highest number of mid-vitellogenic oocytes. Based on these results, it can be suggested that GSI are a suitable parameter for measuring the gonadal maturity of female A. bicolor bicolor. © 2023 Author (s).

Item Type: Article
Additional Information: Cited by: 0
Uncontrolled Keywords: Gonadal maturity; Homogeneity; Indonesian eel; A. bicolor bicolor; Segara Anakan
Subjects: Q Science > QL Zoology
Divisions: Faculty of Biology > Doctoral Program in Biology
Depositing User: Sri JUNANDI
Date Deposited: 30 Oct 2024 13:16
Last Modified: 30 Oct 2024 13:16
URI: https://ir.lib.ugm.ac.id/id/eprint/6018

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