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水产养殖对世界鱼类供应的影响
R L Naylor1, R J Goldburg, J H Primavera
1Stanford University, Institute for International Studies, California 94305-6055, USA. roz@leland.stanford.edu
Nature
|July 13, 2000
概括
全球水产养殖产量正在上升,但养殖肉食物种正在耗尽野生鱼类为料的库存. 可持续的做法对于水产养殖来说至关重要,以继续为全球鱼类供应做出贡献.
科学领域:
- 水产养殖是水产养殖的一种方式.
- 渔业 科学 渔业 科学
- 海洋生态海洋生态学
背景情况:
- 全球养殖鱼类和贝类产量在15年内翻了一番.
- 水产养殖通常被认为可以减少对野生渔业的压力.
- 然而,某些水产养殖实践可能会对野生鱼群产生负面影响.
研究的目的:
- 分析全球水产养殖增长对生态的影响.
- 评估水产养殖对野生鱼类料的依赖程度.
- 确定为可持续水产养殖发展所需的变化.
主要方法:
- 全球水产养殖生产趋势的回顾.
- 对食肉动物养殖物种的料投入的分析.
- 对生态影响的评估,包括息地修改和种群收集.
主要成果:
- 养殖食肉物种需要大量的野生鱼作为料.
- 水产养殖可以通过各种生态影响来减少野生鱼类供应.
- 尽管有影响,总体而言,水产养殖对世界鱼类供应作出了贡献.
结论:
- 水产养殖对全球鱼类供应的贡献很大,但受到威胁.
- 减少水产养殖料中的野生鱼类投入是必不可少的.
- 采用生态合理的管理实践对于可持续性至关重要.
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