全球智库信息集成服务系统(G2TT): Does size matter? A bioeconomic perspective on optimal harvesting when price is size-dependent.

G2TT

来源类型	Article
规范类型	其他
DOI	10.1139/f2011-093
	Does size matter? A bioeconomic perspective on optimal harvesting when price is size-dependent.
	Zimmermann F; Heino M; Steinshamn SI
发表日期	2011
出处	Canadian Journal of Fisheries and Aquatic Sciences 68 (9): 1651-1659
出版年	2011
语种	英语
摘要	Body size is a key parameter influencing demographic characteristics of fish populations as well as market value of landed catch. Yet in bioeconomic modelling, body size is often an overlooked biological and economic parameter. Here we evaluate how size-dependent pricing influences optimal harvest strategies in a model parameterized for two pelagic fisheries, those targeting Atlantic herring (Clupea harengus) and Atlantic mackerel (Scomber scombrus), in Norway. In our model, positively size-dependent pricing clearly shifts optimal harvest strategies towards lower harvest rates and higher mean body size of caught fish. The results are relatively insensitive to biological (e.g., natural mortality) and economic details of the model (e.g, discount rate or demand function). These findings show that size-dependent pricing influences optimal harvest strategies aiming at maximum economic yield and, hence, requires more attention in resource economics and in fisheries management.
主题	Evolution and Ecology (EEP)
URL	http://pure.iiasa.ac.at/id/eprint/9527/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/129249
推荐引用方式 GB/T 7714	Zimmermann F,Heino M,Steinshamn SI. Does size matter? A bioeconomic perspective on optimal harvesting when price is size-dependent.. 2011.