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Marine protected areas (MPAs) exist worldwide to alleviate the gap between human development and conserving nature, history/culture heritage, and resources. In Taiwan, most of MPAs were established as aquatic organism and fishery resource conservation zones (FCZs), such as mud shrimp (Austinogebia edulis) protection since 2006, which we used as a study case. However, comprehensive review has yet conducted to determine whether management objectives are being achieved. We therefore examined the FCZs management effectiveness by conducting a 4 year (2017–2020) field survey of mud shrimp density in the tidal flat and MPA institution in Taiwan. The mud shrimp density obtained from both historical record in references and our observations was analyzed using geographic information systems to determine their spatial distribution within and around the designated FCZs. The results indicate that mud shrimp density is dominant outside the protected zones, which might be related to habitat changes over time. Moreover, the review of MPA governance in Taiwan indicated that FCZs management lack regular financial support and regular examination of management plan. An operational framework is suggested to improve the sustainable management of conservation zones decision-making that comprises four steps: (1) Partnerships with MPA commitment authorities and non-government organizations, specifically, regional fisheries associations; (2) plan regular financial support and fundraise; (3) conduct long-term monitoring programs; and (4) create a coordination platform with stakeholders to evaluate the management plan and/or induce necessary adjustments. This framework will enable users to create strategies that strengthen long-term monitoring and MPA operation maintaining socioeconomic linkages with stakeholders.
Yi-Ping Hung; Yi Chang; Minh-Phuong N. Truong; Jen-Han Yang; Tung-Yao Hsu; Shih-Chun Hsiao. Improving marine protected area with coordination platform: Mud shrimp conservation in Taiwan case study. Marine Policy 2021, 131, 104607 .
AMA StyleYi-Ping Hung, Yi Chang, Minh-Phuong N. Truong, Jen-Han Yang, Tung-Yao Hsu, Shih-Chun Hsiao. Improving marine protected area with coordination platform: Mud shrimp conservation in Taiwan case study. Marine Policy. 2021; 131 ():104607.
Chicago/Turabian StyleYi-Ping Hung; Yi Chang; Minh-Phuong N. Truong; Jen-Han Yang; Tung-Yao Hsu; Shih-Chun Hsiao. 2021. "Improving marine protected area with coordination platform: Mud shrimp conservation in Taiwan case study." Marine Policy 131, no. : 104607.
Skipjack tuna are the most abundant commercial species in Taiwan’s pelagic purse seine fisheries. However, the rapidly changing marine environment increases the challenge of locating target fish in the vast ocean. The aim of this study was to identify the potential fishing grounds of skipjack tuna in the Western and Central Pacific Ocean (WCPO). The fishing grounds of skipjack tuna were simulated using the habitat suitability index (HSI) on the basis of global fishing activities and remote sensing data from 2012 to 2015. The selected environmental factors included sea surface temperature and front, sea surface height, sea surface salinity, mixed layer depth, chlorophyll a concentration, and finite-size Lyapunov exponents. The final input factors were selected according to their percentage contribution to the total efforts. Overall, 68.3% of global datasets and 35.7% of Taiwanese logbooks’ fishing spots were recorded within 5 km of suitable habitat in the daily field. Moreover, 94.9% and 79.6% of global and Taiwan data, respectively, were identified within 50 km of suitable habitat. Our results showed that the model performed well in fitting daily forecast and actual fishing position data. Further, results from this study could benefit habitat monitoring and contribute to managing sustainable fisheries for skipjack tuna by providing wide spatial coverage information on habitat variation.
Tung-Yao Hsu; Yi Chang; Ming-An Lee; Ren-Fen Wu; Shih-Chun Hsiao. Predicting Skipjack Tuna Fishing Grounds in the Western and Central Pacific Ocean Based on High-Spatial-Temporal-Resolution Satellite Data. Remote Sensing 2021, 13, 861 .
AMA StyleTung-Yao Hsu, Yi Chang, Ming-An Lee, Ren-Fen Wu, Shih-Chun Hsiao. Predicting Skipjack Tuna Fishing Grounds in the Western and Central Pacific Ocean Based on High-Spatial-Temporal-Resolution Satellite Data. Remote Sensing. 2021; 13 (5):861.
Chicago/Turabian StyleTung-Yao Hsu; Yi Chang; Ming-An Lee; Ren-Fen Wu; Shih-Chun Hsiao. 2021. "Predicting Skipjack Tuna Fishing Grounds in the Western and Central Pacific Ocean Based on High-Spatial-Temporal-Resolution Satellite Data." Remote Sensing 13, no. 5: 861.
Typhoon-induced cooling in the cold dome region off northeastern Taiwan has a major influence on ocean biogeochemistry. It has previously been studied using numerical models and hydrographic observations. Strong cooling is related to upwelling of the Kuroshio subsurface water accompanied by the westward intrusion of the continental shelf by Kuroshio water. By employing satellite observations, local measurements, and a reanalysis of model data, this study compared 18 typhoon-induced sea surface temperature (SST) responses in the cold dome region and determined that SST responses can differ dramatically depending on the relative location of a typhoon path, the Kuroshio Current, and the topography off northeastern Taiwan. The results indicated that local westward and northward wind stress is positively correlated with upwelling intensity. Decreased northward transport in the Taiwan Strait created a condition that favored the Kuroshio intrusion, thus, the typhoon-induced change in Taiwan Strait transport was also positively correlated with the intensity of cooling. However, the strength of Ekman pumping was weakly correlated with the intensity of SST cooling. Nevertheless, Ekman pumping helped reduce the cover of warm water, facilitating the intrusion of the Kuroshio Current.
Yi-Chun Kuo; Ming-An Lee; Yi Chang. Satellite Observations of Typhoon-Induced Sea Surface Temperature Variability in the Upwelling Region off Northeastern Taiwan. Remote Sensing 2020, 12, 3321 .
AMA StyleYi-Chun Kuo, Ming-An Lee, Yi Chang. Satellite Observations of Typhoon-Induced Sea Surface Temperature Variability in the Upwelling Region off Northeastern Taiwan. Remote Sensing. 2020; 12 (20):3321.
Chicago/Turabian StyleYi-Chun Kuo; Ming-An Lee; Yi Chang. 2020. "Satellite Observations of Typhoon-Induced Sea Surface Temperature Variability in the Upwelling Region off Northeastern Taiwan." Remote Sensing 12, no. 20: 3321.
Coastal regions are threatened by natural processes, such as erosion driven by storm surge and the effect of jetties, as well as by human behavior. This study outlines a management framework based on an analysis of a case study dataset of long-term coastal change in southwestern Taiwan. Specifically, the coastal structure of Taiwan’s largest lagoon, Cigu, was analyzed over a 300-year-long period. A series of satellite-derived images between 1974 and 2015 were assessed. The dataset was integrated with a geographic information system (GIS). The results revealed that human activities, including the construction of hard structures along the coastline and along an upstream reservoir, altered the balance of sediment transmission and resulted in the retreat and erosion of barrier sandbars along the coast. A lagoon evolution model revealed that the Cigu Lagoon may disappear in the future. Furthermore, the coastline will continue to retreat because harbor dykes and offshore breakwaters stop sediment transportation to the downdrift. Soft erosion mitigation is suggested as an immediate approach. However, recovering the sediment budget from reservoirs and dykes could be a long-term solution. In principle, the best coastal environmental protection plan from the national involves delaying urbanization and preserving unexploited coastal wetlands.
Yi Chang; Ka-Wai Chu; Laurence Zsu-Hsin Chuang. Sustainable coastal zone planning based on historical coastline changes: A model from case study in Tainan, Taiwan. Landscape and Urban Planning 2018, 174, 24 -32.
AMA StyleYi Chang, Ka-Wai Chu, Laurence Zsu-Hsin Chuang. Sustainable coastal zone planning based on historical coastline changes: A model from case study in Tainan, Taiwan. Landscape and Urban Planning. 2018; 174 ():24-32.
Chicago/Turabian StyleYi Chang; Ka-Wai Chu; Laurence Zsu-Hsin Chuang. 2018. "Sustainable coastal zone planning based on historical coastline changes: A model from case study in Tainan, Taiwan." Landscape and Urban Planning 174, no. : 24-32.
Changes in marine environments affect fishery resources at different spatial and temporal scales in marine ecosystems. Predictions from species distribution models are available to parameterize the environmental characteristics that influence the biology, range, and habitats of the species of interest. This study used generalized additive models (GAMs) fitted to two spatiotemporal fishery data sources, namely 1° spatial grid and observer record longline fishery data from 2006 to 2010, to investigate the relationship between catch rates of yellowfin tuna and oceanographic conditions by using multispectral satellite images and to develop a habitat preference model. The results revealed that the cumulative deviances obtained using the selected GAMs were 33.6% and 16.5% in the 1° spatial grid and observer record data, respectively. The environmental factors in the study were significant in the selected GAMs, and sea surface temperature explained the highest deviance. The results suggest that areas with a higher sea surface temperature, a sea surface height anomaly of approximately −10.0 to 20 cm, and a chlorophyll-a concentration of approximately 0.05–0.25 mg/m3 yield higher catch rates of yellowfin tuna. The 1° spatial grid data had higher cumulative deviances, and the predicted relative catch rates also exhibited a high correlation with observed catch rates. However, the maps of observer record data showed the high-quality spatial resolutions of the predicted relative catch rates in the close-view maps. Thus, these results suggest that models of catch rates of the 1° spatial grid data that incorporate relevant environmental variables can be used to infer possible responses in the distribution of highly migratory species, and the observer record data can be used to detect subtle changes in the target fishing grounds.
Kuo-Wei Lan; Teruhisa Shimada; Ming-An Lee; Nan-Jay Su; Yi Chang. Using Remote-Sensing Environmental and Fishery Data to Map Potential Yellowfin Tuna Habitats in the Tropical Pacific Ocean. Remote Sensing 2017, 9, 444 .
AMA StyleKuo-Wei Lan, Teruhisa Shimada, Ming-An Lee, Nan-Jay Su, Yi Chang. Using Remote-Sensing Environmental and Fishery Data to Map Potential Yellowfin Tuna Habitats in the Tropical Pacific Ocean. Remote Sensing. 2017; 9 (5):444.
Chicago/Turabian StyleKuo-Wei Lan; Teruhisa Shimada; Ming-An Lee; Nan-Jay Su; Yi Chang. 2017. "Using Remote-Sensing Environmental and Fishery Data to Map Potential Yellowfin Tuna Habitats in the Tropical Pacific Ocean." Remote Sensing 9, no. 5: 444.
The present study aims to investigate the effect of a trans-disciplinary design of curricula, deemed a powerful tool for teaching and research on complex environmental problems, with a goal to help solve the real problems that climate change has brought to the coastal environment in Taiwan. Three major real-life problems in southern Taiwan—declining mullet fisheries, flooding, and coral bleaching—were integrated into four courses. Adopting a qualitative case study method, the researchers investigated the student perceptions of the trans-disciplinary learning experiences, their attitudes toward marine and coastal environmental protection, and their capability of solving the problems related to marine and coastal environments. The researchers employed various methods to analyze the student reflection reports, student self-evaluation forms, and the tape-recorded class meetings. The findings suggest the following: the trans-disciplinary curriculum stands to be an innovative yet indispensable design for coastal management education; such a curriculum benefits students by equipping them with essential knowledge and skills to succeed in future marine conservation; action learning for marine and coastal sustainability serves as the final goal of trans-disciplinary learning project; a trans-disciplinary case study on the design of curricula provides effective knowledge integration of marine and coastal sustainability.
Hsiao-Chien Lee; Kuo-Huan Ting; Yi Chang; Meng-Tsung Lee; Wen-Hong Liu. Trans-Disciplinary Education for Sustainable Marine and Coastal Management: A Case Study in Taiwan. Sustainability 2016, 8, 1096 .
AMA StyleHsiao-Chien Lee, Kuo-Huan Ting, Yi Chang, Meng-Tsung Lee, Wen-Hong Liu. Trans-Disciplinary Education for Sustainable Marine and Coastal Management: A Case Study in Taiwan. Sustainability. 2016; 8 (11):1096.
Chicago/Turabian StyleHsiao-Chien Lee; Kuo-Huan Ting; Yi Chang; Meng-Tsung Lee; Wen-Hong Liu. 2016. "Trans-Disciplinary Education for Sustainable Marine and Coastal Management: A Case Study in Taiwan." Sustainability 8, no. 11: 1096.
The use of ocean space is crucial to coastal sectors in Taiwan, and is complicated by the density of coastal fisheries activities and competition with coastal development. This study focused on Tainan, southwest Taiwan, where oyster farming attracts areola babylon and fish (target species for trap fisheries), thereby inducing unwanted competition with the gill net fisheries. In addition, the zone allocated to Anping Port (a commercial harbor) included what were traditionally oyster farming zones, thus affecting farming activities and causing conflict. This paper presents a case study of the evolution of marine spatial planning (MSP) and management, examining how planning and management were improved and implemented to resolve conflicts between stakeholders. The results of a questionnaire were used to facilitate the management process, which was based on local self-governance and the incremental amendment of management measures. Three recommendations are provided for government and planning units engaging in MSP: (a) establish management procedures for key users (both from the central government and local self-governance groups) when beginning MSP, (b) identify high-priority stakeholders from the viewpoint of primary users whose livelihoods stand to be influenced the most, and (c) improve MSP by implementing amendments to the management regulations incrementally and by communicating regularly with stakeholders.
Yi Chang; Bo-Han Lin. Improving marine spatial planning by using an incremental amendment strategy: The case of Anping, Taiwan. Marine Policy 2016, 68, 30 -38.
AMA StyleYi Chang, Bo-Han Lin. Improving marine spatial planning by using an incremental amendment strategy: The case of Anping, Taiwan. Marine Policy. 2016; 68 ():30-38.
Chicago/Turabian StyleYi Chang; Bo-Han Lin. 2016. "Improving marine spatial planning by using an incremental amendment strategy: The case of Anping, Taiwan." Marine Policy 68, no. : 30-38.
This study presents the response of fisheries management to the extreme climatic events that affect marine capture fisheries and mariculture in Taiwan. Two regional approaches that can be applied universally to help capture fisheries and mariculture adapt to extreme weather events are also proposed. In the winter of 2008, an anomalously strong and continuous northeasterly wind caused by a La Niña event drove the cold China Coastal Current southward to penetrate the southern Taiwan Strait, and a portion of this current intruded eastward to the southern Penghu Archipelago. The cold current intrusion appreciably damaged marine aquaculture and the wild fish population, causing the death of more than 73 t of wild fish and 80% of cage aquaculture fish at the Penghu Islands. This extremely cold seawater event occurred between late January and the beginning of February 2008. To recover fishery resources around the waters of Penghu, fishery-related agencies adapted recovery measures over 3 years starting in April 2008 that included hatchery juvenile release, environmental monitoring, fishery subsidies, and ecological field investigations. This study suggests that responding to extreme climatic influences on fisheries and mariculture should include (1) establishing an early warning system by connecting fisheries agencies and marine research institutions to assist decision makers in performing time-adaptive measures, (2) temporarily suspending fishing activities after the occurrence of a natural disaster to help recover fishery resources and ecosystems, (3) altering the governance of farming fishing right so that fish farmers can temporarily transfer their aquaculture cages from high-risk areas to waters outside the influence of extreme weather events, and (4) continually filing surveys to understand the recovery status of marine ecosystems.
Yi Chang; Ming-An Lee; Kuo-Tien Lee; Kwang-Tsao Shao. Adaptation of fisheries and mariculture management to extreme oceanic environmental changes and climate variability in Taiwan. Marine Policy 2013, 38, 476 -482.
AMA StyleYi Chang, Ming-An Lee, Kuo-Tien Lee, Kwang-Tsao Shao. Adaptation of fisheries and mariculture management to extreme oceanic environmental changes and climate variability in Taiwan. Marine Policy. 2013; 38 ():476-482.
Chicago/Turabian StyleYi Chang; Ming-An Lee; Kuo-Tien Lee; Kwang-Tsao Shao. 2013. "Adaptation of fisheries and mariculture management to extreme oceanic environmental changes and climate variability in Taiwan." Marine Policy 38, no. : 476-482.