Sexual Characteristics of Nemipterus peronii (Valenciennes, 1830) in the Bali Strait | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Volume 29, Issue 5, September and October 2025, Pages 2327-2342 PDF (1.71 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2025.412904.6390 | ||
| Authors | ||
| Suciyono Suciyono* 1; Sapto Andriyono2; Nina Nurmalia Dewi2; Darmawan Setia Budi1; Miftahul Khair Kadim3; Muhammad Browijoyo Santanumurti4; Rossita Shapawi5 | ||
| 11. Aquaculture Study Program, Faculty of Health, Medicine and Life Science (FIKKIA), Airlangga University, Indonesia 2. Sustainability Aquaculture and Environment Research Group, Airlangga University, Indonesia | ||
| 2Department of Marine, Fisheries and Marine Faculty, C Campus Jl. Mulyorejo Surabaya 60115. Universitas Airlangga, Surabaya, East Java, Indonesia. | ||
| 3Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Universitas Negeri Gorontalo. Dulalowo Timur, Gorontalo 96128, Gorontalo, Indonesia. | ||
| 4Department of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga, Surabaya, Indonesia | ||
| 5Borneo Marine Research Institute, Universiti Malaysia Sabah | ||
| Abstract | ||
| Nemipterus peronii is a demersal fish species distributed in the Indo-Pacific region and is one of the main fishing targets. This fish is very popular because it is available throughout the year. However, the high demand and intensity of fishing threaten the sustainability of its population. Moreover, limited information about this species hinders effective regulation and management efforts. This study aimed to analyze reproductive aspects such as differences in primary and secondary sexual characteristics between males and females, as well as gonadal maturity levels and growth patterns. A total of 300 samples of N. peronii were used in this study. Morphometric and meristic data were analyzed using a t-test with a 95% confidence level to identify differences between males and females. In addition, histological observations of the gonads were conducted to determine the stages of gonadal maturity in both sexes. No sexual dimorphism was detected in the external characteristics of males and females. Interestingly, several morphometric parameters in male N. peronii were significantly (P< 0.05) larger than in females. However, no significant differences were observed in the meristic parameters. Histological analysis showed that oocyte development in this species is asynchronous, allowing spawning to occur over an extended period. Furthermore, the growth pattern of N. peronii in both males and females was found to be isometric. | ||
| Keywords | ||
| Indonesian threadfin bream; Sexual characteristics; Bio-ecology; Bali Strait; Gonadal maturity | ||
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