种群规模、捕捞成本与灭绝可能性:以海豹捕猎为例

Stock Size, Harvesting Costs, and the Potential for Extinction: The Case of Sealing

Land Economics · 1993
被引 27
人大 A-ABS 3

中文导读

基于挪威海豹捕猎数据,分析生产函数特征,探讨自由进入是否导致过度开发,关键看捕捞成本对种群规模的依赖程度。

Abstract

Starting in the 1960s, considerable opposition to the Canadian and Norwegian harp seal hunt off Newfoundland developed. It was alleged that the seal hunt was unethical and that the seal population had been seriously depleted. The purpose of this paper is to analyze the production function for the seal hunt based on data for the Norwegian seal hunt. Particular attention is paid to the question whether free entry to the fishery will cause overexploitation. This depends critically on the characteristics of the production function, in particular the extent to which harvesting costs depend on stock size.

竖琴海豹捕猎生产函数种群存量过度开发