The Stock of Panulirus homarus in Kebumen Waters, Indonesia

Wijayanto, Dian; Kurohman, Faik; Setyawan, Hendrik Anggi; Kurnia, Dita Juni

doi:10.21608/ejabf.2025.385762.5869

The Stock of Panulirus homarus in Kebumen Waters, Indonesia

Document Type : Original Article

Authors

¹ Faculty of Fisheries and Marine Science, Diponegoro University, Tembalang, Semarang, Central Java, Indonesia.

² Faculty of Fisheries and Marine Science, Diponegoro University, Tembalang, Semarang, Central Java, Indonesia

10.21608/ejabf.2025.385762.5869

Abstract

Kebumen Regency is a central lobster producing area in Indonesia, with a major catch of the Panulirus homarus which has high economic value. This research was performed to determine the level of exploitation of P. homarus in Kebumen waters. Data collection was conducted from October to December 2024 from 399 randomly-sampled lobsters to measure their carapace length. The growth rate, recruitment, mortality, and exploitation level were measured using FiSAT II. As a comparison, a surplus production examination was also conducted using the Schaefer model. The results showed that the initial size caught (Lc_50%) was 6.51 cm CL, with a asymptotic carapace length (L∞) of 12.8 cm CL. The highest recruitment is estimated to occur in May. Furthermore, the exploitation of P. homarus in Kebumen waters is regarded under-exploited at a value of 0.18. The results of the surplus production examination also show that the utilization of P. homarus is categorized underfishing.

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