Coupling of an Individual-Based Model of Anchovy with Lower Trophic Level and Hydrodynamic Models

被引:0
作者
WANG Yuheng [1 ]
WEI Hao [2 ]
Michio J. Kishi [3 ]
机构
[1] Key Laboratory of Physical Oceanography, Ocean University of China
[2] College of Marine Science and Engineering, Tianjin University of Science and Technology
[3] Faculty of Fisheries Sciences, Hokkaido University
基金
中国国家自然科学基金;
关键词
anchovy; individual-based model; population dynamics; Yellow Sea;
D O I
暂无
中图分类号
S917.4 [水产动物学];
学科分类号
0908 ;
摘要
Anchovy (Engraulis japonicus), a small pelagic fish and food of other economic fishes, is a key species in the Yellow Sea ecosystem. Understanding the mechanisms of its recruitment and biomass variation is important for the prediction and management of fishery resources. Coupled with a hydrodynamic model (POM) and a lower trophic level ecosystem model (NEMURO), an individual-based model of anchovy is developed to study the influence of physical environment on anchovy’s biomass variation. Seasonal variations of circulation, water temperature and mix-layer depth from POM are used as external forcing for NEMURO and the anchovy model. Biomasses of large zooplankton and predatory zooplankton which anchovy feeds on are output from NEMURO and are controlled by the consumption of anchovy on them. Survival fitness theory related to temperature and food is used to determine the swimming action of anchovy in the model. The simulation results agree well with observations and elucidate the influence of temperature in over-wintering migration and food in feeding migration.
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页码:45 / 52
页数:8
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