Diel vertical migration of zooplankton following optimal food intake under predation

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	Diel vertical migration of zooplankton following optimal food intake under predation
	Liu, SH ; Sun, S; Han, BP
刊名	JOURNAL OF PLANKTON RESEARCH
	2003-09-01
卷号	25 期号:9 页码:1069-1077
关键词	Planktonic Copepod Calanus-pacificus Dynamic Optimization Population-dynamics Marine Copepod Acartia Availability Finmarchicus Environments Patterns
ISSN号	0142-7873
文献子类	Article
英文摘要	A model is developed to investigate the trade-offs between benefits and costs involved in zooplanktonic diel vertical migration (DVM) strategies. The 'venturous revenue' (VR) is used as the criterion for optimal trade-offs. It is a function of environmental factors and the age of zooplankter. During vertical migration, animals are assumed to check instantaneously the variations of environmental parameters and thereby select the optimal behavioral strategy to maximize the value of VR, i.e. taking up as much food as possible with a certain risk of mortality. The model is run on a diel time scale (24 h) in four possible scenarios during the animal's life history. The results show that zooplankton can perform normal DVM balancing optimal food intake against predation risk, with the profile of DVM largely modified by the age of zooplankter.; A model is developed to investigate the trade-offs between benefits and costs involved in zooplanktonic diel vertical migration (DVM) strategies. The 'venturous revenue' (VR) is used as the criterion for optimal trade-offs. It is a function of environmental factors and the age of zooplankter. During vertical migration, animals are assumed to check instantaneously the variations of environmental parameters and thereby select the optimal behavioral strategy to maximize the value of VR, i.e. taking up as much food as possible with a certain risk of mortality. The model is run on a diel time scale (24 h) in four possible scenarios during the animal's life history. The results show that zooplankton can perform normal DVM balancing optimal food intake against predation risk, with the profile of DVM largely modified by the age of zooplankter.
学科主题	Marine & Freshwater Biology ; Oceanography
语种	英语
WOS记录号	WOS:000185148600006
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/2787]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanog, Dept Marine Ecol, Qingdao 266071, Peoples R China 2.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Peoples R China
推荐引用方式 GB/T 7714	Liu, SH,Sun, S,Han, BP. Diel vertical migration of zooplankton following optimal food intake under predation[J]. JOURNAL OF PLANKTON RESEARCH,2003,25(9):1069-1077.
APA	Liu, SH,Sun, S,&Han, BP.(2003).Diel vertical migration of zooplankton following optimal food intake under predation.JOURNAL OF PLANKTON RESEARCH,25(9),1069-1077.
MLA	Liu, SH,et al."Diel vertical migration of zooplankton following optimal food intake under predation".JOURNAL OF PLANKTON RESEARCH 25.9(2003):1069-1077.