A social–ecological systems perspective on shark and ray fisheries: Evidence from port-based fisheries in Lamongan Regency, East Java, Indonesia

Journal article

Shark and ray fisheries face increasing conservation and governance challenges in complex, multi-species fisheries systems. This study provides insights into the social–ecological system (SES) of elasmobranch fisheries at Brondong National Fishing Port (PPN Brondong), a major fishing hub on the northern coast of East Java, Indonesia. Landing data, species composition, and IUCN conservation status were integrated with social–ecological network analysis to assess the structure and relative roles of SES components. The results indicate that landings are dominated by Critically Endangered and Vulnerable taxa, with Sphyrna lewini and Rhynchobatus australiae exhibiting the highest landing frequencies. The SES structure highlights strong linkages between production activities and market dynamics, alongside the relatively limited influence of local governance in regulating catch and trade. These findings suggest the need for targeted management interventions, including species-based measures, to better align conservation priorities with socio-economic objectives. This study demonstrates the value of an SES-based approach in strengthening the information base for sustainable elasmobranch fisheries management.

Authors: Nurhijayat, A; Adrianto, L; Booth, HL; Boer, M; Zairion

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IOP Publishing
• Journal: IOP Conference Series: Earth and Environmental Science
• Volume: 1618
• Issue: 1
• Pages: 012017
• Article number: 012017
• Publication date: 2026-05-01
• DOI: 10.1088/1755-1315/1618/1/012017
• EISSN: 1755-1315
• ISSN: 1755-1307
• Language: English
• Keywords: social-ecological systems; East Java Province; fisheries management; elasmobranch conservation; network analysis