全球智库信息集成服务系统(G2TT): On the interplay of environmental changes and fishing pressure in exploited fish stocks.

G2TT

来源类型	Conference or Workshop Item (UNSPECIFIED)
规范类型	其他
	On the interplay of environmental changes and fishing pressure in exploited fish stocks.
	Boukal DS; de Roos AM; Persson L; Heino M
发表日期	2010
出处	ICES CM Documents 2010 - ICES Annual Science Conference, 20-24 September 2010
出版年	2010
语种	英语
摘要	Fish in many exploited stocks grow faster and mature earlier at either larger or smaller sizes in comparison to pre-exploitation periods. These changes can be driven by both genetic and phenotypic responses. At the same time, these stocks may adjust to other changes of the environment such as increasing/ decreasing overall productivity or changes in temperature. Using a model of planktivorous fish with annual spawning and size- and density-dependent individual growth, we ask if the interplay of environmental change and fishing pressure could lead to stabilizing, disruptive or directional selection on age and size at maturation in the stock. This question is particularly relevant for habitats exposed to signiicant directional change in the environment, the prime example being many man-made inland reservoirs.
主题	Evolution and Ecology (EEP)
关键词	Life history evolution Stochasticity Harvesting Population dynamics Density dependence Fisheries
URL	http://pure.iiasa.ac.at/id/eprint/9409/
来源智库	International Institute for Applied Systems Analysis (Austria)
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/132325
推荐引用方式 GB/T 7714	Boukal DS,de Roos AM,Persson L,et al. On the interplay of environmental changes and fishing pressure in exploited fish stocks.. 2010.