http://scholars.ntou.edu.tw/handle/123456789/201 2026-08-13T17:13:30Z 2026-08-13T17:13:30Z Lin, Chih-Yu Lu, Yu-Heng Xu, Wen-Qi Wang, Sheng-Ping Kitakado, Toshihide http://scholars.ntou.edu.tw/handle/123456789/26796 2026-08-10T03:12:19Z 2026-01-01T00:00:00Z

標題: Regional exploitation signals inferred from a data-limited per-recruit assessment of Trichiurus japonicus in Taiwanese waters 作者: Lin, Chih-Yu; Lu, Yu-Heng; Xu, Wen-Qi; Wang, Sheng-Ping; Kitakado, Toshihide 摘要: Trichiurus japonicus is a heavily exploited coastal fishery species in the Northwest Pacific Ocean. Although Taiwan contributes less than 2% of regional landings, localized assessment is important because exploitation pressure reflects cumulative fishing mortality across jurisdictions and biological parameters may vary geographically. The lack of species-specific catch data and long-term abundance indices has prevented formal stock assessment in Taiwanese waters. To evaluate relative exploitation status under severe data constraints, agestructured and length-structured per-recruit analyses were conducted using length-frequency data collected from Taiwanese coastal fisheries between 2019 and 2023. Natural mortality was estimated using six empirical methods, and total mortality was estimated using seven catch-curve approaches, yielding forty-two fishing mortality scenarios. Length compositions were consistently dominated by small to medium individuals, and reconstructed age compositions were strongly truncated, with age-0 and age-1 fish comprising most of the catch. Current fishing mortality ranged from 0.749 to 1.483 year(-1) and exceeded conservative biological reference points, including F0.1 (0.203-0.731 year(-1)), in most scenarios. It also frequently approached or exceeded FMAX (0.385-1.887 year(-1)) and spawning potential ratio (SPR)-based thresholds. Current SPR ranged from 0.128 to 0.456 and was generally below the 40% target threshold and often near or below the 25% limit threshold. Although available data preclude a complete stock assessment, consistent signals across model structures and selectivity assumptions indicate elevated exploitation that reduces survival to older ages and limits reproductive output. These findings demonstrate that per-recruit analyses can provide useful indicators of relative exploitation under data-limited conditions and highlight the importance of incorporating localized biological indicators into future regional assessments of this transboundary resource.

2026-01-01T00:00:00Z Chung, Huey-Shian Su, Nan-Jay Liao, Chun-Pei Chen, Weien http://scholars.ntou.edu.tw/handle/123456789/26778 2026-08-10T03:12:14Z 2026-01-01T00:00:00Z

標題: Enabling inclusive ocean conservation: Taiwan's marine OECM Framework 作者: Chung, Huey-Shian; Su, Nan-Jay; Liao, Chun-Pei; Chen, Weien 摘要: Other effective area-based conservation measures (OECMs) have emerged internationally as an alternative and more inclusive pathway to address the global biodiversity crisis. Despite OECMs being essential to achieving the 30 & times; 30" global target marine OECM (mOECM) recognition remains largely unrealized. This study addresses this gap by investigating how enabling conditions for mOECM recognition can be strengthened through participatory approaches. Taiwan serves as the case study for this investigation having recently enacted a legally binding mOECM framework in July 2025. Employing a combination of literature review and a participatory workshop this study examines Taiwan's emerging framework assesses stakeholder perceptions and categorizes spatial areas of interest to reveal key governance concerns. The results indicate that participant-nominated areas are highly concentrated in sites associated with the marine economy. Consequently this study advances the conceptualization of mOECMs through the lens of adaptively managed human-nature coexistence within the blue economy. Furthermore it discusses the potential of mOECM recognition to serve as a bridging governance institution to mediate inherent sustainable development conflicts. The findings present enabling conditions including conceptual clarification and capacity building standardized biodiversity assessment procedures and the creation of incentives to reduce management burdens. These results offer valuable lessons for governments and communities seeking to minimize implementation friction while ensuring equitable and verifiable outcomes in national mOECM frameworks worldwide."

2026-01-01T00:00:00Z Sunardi Lan, Kuo- Wei My, Irene Chia Liang http://scholars.ntou.edu.tw/handle/123456789/26759 2026-08-10T03:12:09Z 2026-01-01T00:00:00Z

標題: Marine Ecology: An Ecosystemic View of Anthropogenic Impacts 作者: Sunardi; Lan, Kuo- Wei; My, Irene Chia Liang

2026-01-01T00:00:00Z Matovu, Baker Mammel, Mubarak Lee, Ming-An Beegum, Sajna Fatma, Mahmoud Hsieh, Yu-Ling http://scholars.ntou.edu.tw/handle/123456789/26758 2026-08-10T03:12:08Z 2026-01-01T00:00:00Z

標題: Co-creating a fisherwomen-led business empowerment model for sustainable seafood value chains and transformations: Takeaways from India 作者: Matovu, Baker; Mammel, Mubarak; Lee, Ming-An; Beegum, Sajna; Fatma, Mahmoud; Hsieh, Yu-Ling 摘要: This study integrated perspectives from coastal women in Alappad, Kerala, and literature on marine fisheries in India to propose a sustainable fisherwomen-led seafood value chain (SVC) model. Findings revealed that the increasing value and demand for India's seafood products could promote sustainable blue foods and livelihood empowerment. This will depend on increasing opportunities and sustainability practices in the SVC, notably fisherwomen's empowerment, inclusion, and stakeholder collaboration. Unfortunately, current actors' interactions, production patterns, and linear operations perpetuate unsustainable trade-offs that are dominantly segmented by fisherwomen, including price manipulation and volatility, seafood waste, and overfishing. These extinguish the critical and often undervalued fisherwomen's role towards better SVC practices. Through the triple-layer business model approach, this study demonstrates that fisherwomen's empowerment could promote circularity and increase consumer-producer benefits, including offering flexible seafood products and services. To strengthen this, we propose a fisherwomen seafood customers' choices App and dashboard to serve as an indicative platform for strengthening fisherwomen-led businesses, customer demand-supply choices, and preferences. We argue that as coastal fisherwomen offer multidimensional SVC services, digitalized and strengthened fisherwomen-led enterprises can strengthen blue transformation targets, including seafood safety, local communities' nutrition, and security. Without win-win SVC practices, sustainable fisheries practices might not be realized.

2026-01-01T00:00:00Z