http://scholars.ntou.edu.tw/handle/123456789/17199
標題: | Predicting Skipjack Tuna Fishing Grounds in the Western and Central Pacific Ocean Based on High-Spatial-Temporal-Resolution Satellite Data | 作者: | Hsu, Tung-Yao Chang, Yi Lee, Ming-An Wu, Ren-Fen Hsiao, Shih-Chun |
關鍵字: | Western and Central Pacific Ocean;skipjack tuna;habitat suitability index | 公開日期: | 三月-2021 | 出版社: | MDPI | 卷: | 13 | 期: | 5 | 來源出版物: | REMOTE SENS-BASEL | 摘要: | 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. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/17199 | ISSN: | 2072-4292 | DOI: | 10.3390/rs13050861 |
顯示於: | 13 CLIMATE ACTION 14 LIFE BELOW WATER 15 LIFE ON LAND 環境生物與漁業科學學系 |
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