臺灣博碩士論文加值系統

每年冬春之交，攝食區域位於中國東海的日本鯷成魚會洄游至位於台灣沿海的產卵場，其仔稚魚（魩仔魚）則會成為台灣沿海漁業的重要標的之一。過去研究顯示日本鯷仔稚魚的單位努力漁獲量（Catch-per-unit effort）的年間變異與聖嬰-南方震盪現象（El Niño-Southern Oscillation, ENSO）有著負相關性；然而對於ENSO如何影響洋流等物裡環境進而影響魩仔魚的再補充量的詳細機制，目前仍不清楚。為了釐清此問題，本研究利用物裡洋流模型（hydrodynamic model）模擬過往年份的中國東海及台灣海峽的冬季流場，同時利用個體模型（Individual-based model）來模擬日本鯷成魚的的洄游行為並記錄其在模擬流場中的洄游過程。比較不同ENSO強度下的模擬結果，顯示到達台灣沿海海域的成魚數量與被東北季風驅動的中國沿岸流（China Coastal Current）強度呈現正相關。當強度越大的聖嬰(反聖嬰)現象發生時，東北季風減弱(增強)的情形也越明顯，進而影響中國沿岸流使之減弱(增強)，最終導致到達台灣海域的日本鯷成魚數量減少(增加)。ENSO、東北季風、中國沿岸流以及日本鯷的生殖洄游行為之間的關聯顯示了大尺度的環境變異可能藉由影響中尺度的環境物理因子傳遞至海洋生物進而影響其生殖行為。結果顯示，考慮洄游物種的漁業政策時，洄游過程所造成的影響不可忽略。

Mature individuals of Japanese anchovy (Engraulis japonicus) migrate from the East China Sea to the coastal water of northern Taiwan to spawn during winter. The anchovy larvae then form an important fishery resource for Taiwan. Previous studies indicate that the interannual variation of anchovy larvae catch per unit effort data exhibited a negative correlation with ENSO; however, the detail underlying mechanism explaining how ENSO affects ocean currents or environmental conditions, which in turn determine the fluctuations of anchovy larvae, remains unclear. To bridge the knowledge gap, we construct historical circulation patterns in the East China Sea and the Taiwan Strait by hydrodynamic models, and use individual-based model to represent fish behavior for simulating the migration process of Japanese anchovy. Comparing model results under various ENSO states (strong El Niño (La Niña) and moderate El Niño (La Niña) states), we find that the fluxes of Japanese anchovy populations toward Taiwan is positively correlated with the strength of China Coastal Current, which is driven by the East Asian Winter Monsoon. Specifically, in El Niño (La Niña) states, the East Asian Winter Monsoon decreases (increases) in boreal winter and weakens (strengthens) the China Coastal Current and in turn decreases (increases) the fluxes of Japanese anchovy populations migrating toward the coastal water of Taiwan. The connection between the ENSO, East Asian Winter Monsoon, China Coastal Current, and spawning migration of Japanese anchovy suggests that large-scale environmental changes may affect reproductive biology of species through meso-scale physical environmental factors. The results also indicate that the dynamics of migration processes should be considered in fishery managements.

Contents
Abstract............................ i
中文摘要............................. iii
Contents............................ iv
Image Contents...................... v
Introduction........................ 1
Materials........................... 6
Methods............................. 6
Historical data analysis............ 6
Model description................... 6
A. Hydrodynamic model.......... 7
B. Biological model............ 8
Sensitivity analyses................ 10
Results............................. 11
The simulation results of physical models.............................. 11
The simulation results of biological models.............................. 14
Discussion.......................... 17
Conclusion.......................... 25
Reference........................... 26

References
Bakun, A., and R. H. Parrish. 1991. Comparative studies of coastal pelagic fish reproductive habitats: the anchovy (Engraulis anchoita) of the southwestern Atlantic. ICES Journal of Marine Science: Journal du Conseil 48:343-361.
Barbaro, A., B. Einarsson, B. Birnir, S. Sigursson, H. Valdimarsson, O. K. Pálsson, S. Sveinbjörnsson, and O. T. Sigursson. 2009. Modelling and simulations of the migration of pelagic fish. ICES Journal of Marine Science 66:826-838.
Barber, R. T., and F. P. Chavez. 1986. Ocean variability in relation to living resources during the 1982-83 El Nino. Nature 319:279-285.
Capella, J. E., L. B. Quetin, E. E. Hofmann, and R. M. Ross. 1992. Models of the early life history of Euphausia superba—Part II. Lagrangian calculations. Deep Sea Research Part A. Oceanographic Research Papers 39:1201-1220.
Chang, C. P., and K. M. Lau. 1982. Short-Term Planetary-Scale Interactions over the Tropics and Midlatitudes during Northern Winter. Part I: Contrasts between Active and Inactive Periods. Monthly Weather Review 110:933-946.
Chang, Y., K.-T. Lee, M.-A. Lee, and K.-W. Lan. 2009. Satellite Observation on the Exceptional Intrusion of Cold Water in the Taiwan Strait. Terrestrial, Atmospheric and Oceanic Sciences 20:661-669.
Chang, Y., T. Shimada, M. A. Lee, H. J. Lu, F. Sakaida, and H. Kawamura. 2006. Wintertime sea surface temperature fronts in the Taiwan Strait. Geophysical Research Letters 33.
Chao, S.-Y. 1990. Circulation of the East China Sea, a numerical study. Journal of the Oceanographical Society of Japan 46:273-295.
Chen, C.-S., and T.-S. Chiu. 2003. Early life history traits of Japanese anchovy in the northeastern waters of Taiwan, with reference to larval transport. ZOOLOGICAL STUDIES-TAIPEI- 42:248-257.
Chen, C.-S., C.-H. Tzeng, and T.-S. Chiu. 2010. Morphological and Molecular Analyses Reveal Separations among Spatiotemporal Populations of Anchovy (Engraulis japonicus) in the Southern East China Sea. Zoological Studies 49:270-282.
Chiu, T.-S., Y.-J. Lee, S.-W. Huang, and H.-T. Yu. 2002. Polymorphic microsatellite markers for stock identification in Japanese anchovy (Engraulis japonica). Molecular Ecology Notes 2:49-50.
Chiu, T.-S., S.-S. Young, and C.-S. Chen. 1997. Monthly variation of larval anchovy fishery in I-lan Bay, NE Taiwan, with an evaluation for optimal fishing season. JOURNAL-FISHERIES SOCIETY OF TAIWAN 24:273-282.
Chiu, T., and C. Chen. 2001. Growth and temporal variation of two Japanese anchovy cohorts during their recruitment to the East China Sea. Fisheries Research 53:1-15.
Chongyin, L. 1990. Interaction between anomalous winter monsoon in East Asia and El Nino events. Advances in Atmospheric Sciences 7:36-46.
Cowen, R. K., C. B. Paris, and A. Srinivasan. 2006. Scaling of Connectivity in Marine Populations. Science 311:522-527.
Cushing, D. H. 1975. Marine ecology and fisheries. CUP Archive.
Di Lorenzo, E., N. Schneider, K. M. Cobb, P. J. S. Franks, K. Chhak, A. J. Miller, J. C. McWilliams, S. J. Bograd, H. Arango, E. Curchitser, T. M. Powell, and P. Rivière. 2008. North Pacific Gyre Oscillation links ocean climate and ecosystem change. Geophys. Res. Lett. 35:L08607.
Haidvogel, D. B., H. G. Arango, K. Hedstrom, A. Beckmann, P. Malanotte-Rizzoli, and A. F. Shchepetkin. 2000. Model evaluation experiments in the North Atlantic Basin: simulations in nonlinear terrain-following coordinates. Dynamics of Atmospheres and Oceans 32:239-281.
He, S. 2013. Reduction of the East Asian winter monsoon interannual variability after the mid-1980s and possible cause. Chinese Science Bulletin 58:1331-1338.
He, S., and H. Wang. 2013. Oscillating Relationship between the East Asian Winter Monsoon and ENSO. Journal of Climate 26:9819-9838.
Hinch, S. G., and J. Bratty. 2000. Effects of swim speed and activity pattern on success of adult sockeye salmon migration through an area of difficult passage. Transactions of the American Fisheries Society 129:598-606.
Hsia, K.-Y., K.-T. Lee, C.-H. Liao, and J.-E. Wang. 2004. Effects of changes in sea surface temperature on fluctuation in larval anchovy resources in coastal waters of Taiwan. 臺灣水產學會刊 31:127-140.
Hsieh, C.-H., C.-S. Chen, T.-S. Chiu, K.-T. Lee, F.-J. Shieh, J.-Y. Pan, and M.-A. Lee. 2009. Time series analyses reveal transient relationships between abundance of larval anchovy and environmental variables in the coastal waters southwest of Taiwan. Fisheries Oceanography 18:102-117.
Hu, J., H. Kawamura, C. Li, H. Hong, and Y. Jiang. 2010. Review on current and seawater volume transport through the Taiwan Strait. Journal of Oceanography 66:591-610.
Huse, G., G. O. Johansen, B. Bogstad, and H. Gjsæter. 2004. Studying spatial and trophic interactions between capelin and cod using individual-based modelling. ICES Journal of Marine Science: Journal du Conseil 61:1201-1213.
Isobe, A. 2008. Recent advances in ocean-circulation research on the Yellow Sea and East China Sea shelves. Journal of Oceanography 64:569-584.
Iversen, S. A., D. Zhu, A. Johannessen, and R. Toresen. 1993. Stock size, distribution and biology of anchovy in the Yellow Sea and East China Sea. Fisheries Research 16:147-163.
Jiang, S., and X. Zheng. 1984. The morphological characters of eggs and larvae of Engraulis japonica Temminck et Schlegel and its spawning areas in the fishing ground of the South Fujian and Taiwan Bank. Journal of Oceanography In Taiwan Strait 3:224-231.
Kim, J.-Y., Y.-S. Kang, H.-j. Oh, Y.-S. Suh, and J.-D. Hwang. 2005. Spatial distribution of early life stages of anchovy (Engraulis japonicus) and hairtail (Trichiurus lepturus) and their relationship with oceanographic features of the East China Sea during the 1997–1998 El Niño Event. Estuarine, Coastal and Shelf Science 63:13-21.
Kuo, N.-J., and C.-R. Ho. 2004. ENSO effect on the sea surface wind and sea surface temperature in the Taiwan Strait. Geophysical Research Letters 31:L13309.
Lee, H.-J., and S.-Y. Chao. 2003. A climatological description of circulation in and around the East China Sea. Deep Sea Research Part II: Topical Studies in Oceanography 50:1065-1084.
Lee, M.-A., K.-T. Lee, and G.-Y. Shiah. 1995. Environmental factors associated with the formation of larval anchovy fishing grounds in the coastal waters of southwest Taiwan. Marine Biology 121:621-625.
Lee, M., and K. Lee. 1996. The larval anchovy (< i> Engraulis japonicus) fishery in relation to the environmental factors in coastal waters of Fangliao, Taiwan. Fisheries Research 26:37-48.
Li, C., J. Hu, S. Jan, Z. Wei, G. Fang, and Q. Zheng. 2006. Winter-spring fronts in Taiwan Strait. Journal of Geophysical Research: Oceans 111:C11S13.
Lin, S. F., T. Y. Tang, S. Jan, and C. J. Chen. 2005. Taiwan strait current in winter. Continental Shelf Research 25:1023-1042.
Mantua, N. J., and S. R. Hare. 1997. A Pacific interdecadal climate oscillation with impacts on salmon production. Bulletin of the American Meteorological Society 78:1069.
Marchesiello, P., J. C. McWilliams, and A. Shchepetkin. 2003. Equilibrium structure and dynamics of the California Current System. Journal of Physical Oceanography 33.
Okunishi, T., S.-i. Ito, T. Hashioka, T. Sakamoto, N. Yoshie, H. Sumata, Y. Yara, N. Okada, and Y. Yamanaka. 2012. Impacts of climate change on growth, migration and recruitment success of Japanese sardine (Sardinops melanostictus) in the western North Pacific. Climatic Change 115:485-503.
Okunishi, T., Y. Yamanaka, and S.-i. Ito. 2009. A simulation model for Japanese sardine (Sardinops melanostictus) migrations in the western North Pacific. Ecological Modelling 220:462-479.
Opdal, A. F., F. Vikeb, and Ø. Fiksen. 2011. Parental migration, climate and thermal exposure of larvae: spawning in southern regions gives Northeast Arctic cod a warm start. Marine Ecology Progress Series 439:255-262.
Ottersen, G., S. Kim, G. Huse, J. J. Polovina, and N. C. Stenseth. 2010. Major pathways by which climate may force marine fish populations. Journal of Marine Systems 79:343-360.
Philander, S. G., J. R. Holton, and R. Dmowska. 1989. El Nino, La Nina, and the Southern Oscillation. Elsevier Science.
Politikos, D., G. Triantafyllou, G. Petihakis, K. Tsiaras, S. Somarakis, S.-I. Ito, and B. Megrey. 2011. Application of a bioenergetics growth model for European anchovy (Engraulis encrasicolus) linked with a lower trophic level ecosystem model. Hydrobiologia 670:141-163.
Rose, G. A. 1993. Cod spawning on a migration highway in the north-west Atlantic. Nature 366:458-461.
Rothschild, B., and M. Fogarty. 1989. Spawning-stock biomass: a source of error in recruitment/stock relationships and management advice. Journal du Conseil: ICES Journal of Marine Science 45:131-135.
Shang, S., C. Zhang, H. Hong, Q. Liu, G. T. F. Wong, C. Hu, and B. Huang. 2005. Hydrographic and biological changes in the Taiwan Strait during the 1997–1998 El Niño winter. Geophysical Research Letters 32:L11601.
Shchepetkin, A. F., and J. C. McWilliams. 2005. The regional oceanic modeling system (ROMS): a split-explicit, free-surface, topography-following-coordinate oceanic model. Ocean Modelling 9:347-404.
Stenseth, N. C., G. Ottersen, J. W. Hurrell, A. Mysterud, M. Lima, K. S. Chan, N. G. Yoccoz, and B. Ådlandsvik. 2003. Studying climate effects on ecology through the use of climate indices: the North Atlantic Oscillation, El Nino Southern Oscillation and beyond. Proceedings of the Royal Society of London. Series B: Biological Sciences 270:2087-2096.
Takasuka, A., Y. Oozeki, H. Kubota, Y. Tsuruta, and T. Funamoto. 2005. Temperature impacts on reproductive parameters for Japanese anchovy: Comparison between inshore and offshore waters. Fisheries Research 76:475-482.
Tang, T. Y., J. H. Tai, and Y. J. Yang. 2000. The flow pattern north of Taiwan and the migration of the Kuroshio. Continental Shelf Research 20:349-371.
Tornita, T., and T. Yasunari. 1996. Role of the Northeast Winter Monsoon on the Biennial Oscillation of the ENSO/Monsoon System. Journal of the Meteorological Society of Japan 74:399-413.
Tsai, C.-F., P.-Y. Chen, C.-P. Chen, M.-A. Lee, G.-Y. Shiah, and K.-T. Lee. 1998. Fluctuation in abundance of larval anchovy and environmental conditions in coastal waters off south-western Taiwan as associated with the El Niño–Southern Oscillation. Fisheries Oceanography 6:238-249.
Tu, C.-Y., Y.-H. Tseng, T.-S. Chiu, M.-L. Shen, and C.-H. Hsieh. 2012. Using coupled fish behavior–hydrodynamic model to investigate spawning migration of Japanese anchovy, Engraulis japonicus, from the East China Sea to Taiwan. Fisheries Oceanography 21:255-268.
Wang, B. 2006. The asian monsoon. Springer Science & Business Media.
Wang, B., R. Wu, and X. Fu. 2000. Pacific–East Asian Teleconnection: How Does ENSO Affect East Asian Climate? Journal of Climate 13:1517-1536.
Wang, Y., H. Wei, and M. Kishi. 2013. Coupling of an individual-based model of anchovy with lower trophic level and hydrodynamic models. Journal of Ocean University of China 12:45-52.
Weihs, D. 1973. Optimal fish cruising speed.
Willis, J. 2011. Modelling swimming aquatic animals in hydrodynamic models. Ecological Modelling 222:3869-3887.
Wu, C.-R., S.-Y. Chao, and C. Hsu. 2007. Transient, seasonal and interannual variability of the Taiwan Strait current. Journal of Oceanography 63:821-833.
Young, S.-S., and T.-S. Chiu. 1994. Ovarian maturation of Japanese anchovy, Engraulis japonica T. and S., from I-lan Bay, northeastern Taiwan. Zool. Stud 33:302-309.
Yu, H.-T., Y.-J. Lee, S.-W. Huang, and T.-S. Chiu. 2002. Genetic Analysis of the Populations of Japanese Anchovy (Engraulidae: Engraulis japonicus) Using Microsatellite DNA. Marine Biotechnology 4:471-479.
Yu, Z.-n., X.-y. Kong, T.-h. Guo, Y.-y. Jiang, Z.-m. Zhuang, and X.-s. Jin. 2005. Mitochondrial DNA sequence variation of Japanese anchovy Engraulis japonicus from the Yellow Sea and East China Sea. Fisheries Science 71:299-307.
Zhang, J., R. Letolle, J. M. Martin, C. Jusserand, and J. M. Mouchel. 1990. Stable oxygen isotope distribution in the Huanghe (Yellow River) and the Changjiang (Yangtze River) estuarine systems. Continental Shelf Research 10:369-384.
Zhang, Y., K. R. Sperber, and J. S. Boyle. 1997. Climatology and interannual variation of the East Asian winter monsoon : Results from the 1979-95 NCEP/NCAR reanalysis. American Meteorological Society, Boston, MA, ETATS-UNIS.
Zhou, W., C. Li, and X. Wang. 2007. Possible connection between Pacific Oceanic interdecadal pathway and east Asian winter monsoon. Geophysical Research Letters 34:L01701.