Native fish stocking of rivers: discriminating between hatchery-reared and wild fish

河流的本地鱼类放养：孵化场饲养的鱼类和野生鱼类的区别

• 批准号: LP0348611
• 负责人: Prof Bronwyn Gillanders
• 金额: $ 24.68万
• 依托单位: The University of Adelaide
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-09-02 至 2006-09-03
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0348611
• 关键词: Native; fish; stocking; rivers; discriminating

Stocking of fish is widely used in attempts to restore native fish populations. Little is known of the fate of stocked fish or the effects of stocking on resident populations. We will develop and evaluate protocols for chemical marking of otoliths of hatchery-reared fish so that their source can be determined. Experimental stocking of hatchery-reared fish will be undertaken and population structure and source of stocked versus wild fish determined in stocked and unstocked rivers. Natural chemical signatures will also help determine important recruitment areas. The outcomes will allow fisheries managers to make informed decisions regarding stocking strategies.

鱼类放养被广泛用于恢复本地鱼类种群。 人们对放养鱼类的命运或放养对居民的影响知之甚少。 我们将制定和评估对孵化场饲养的鱼类耳石进行化学标记的方案，以便确定其来源。 将进行孵化场养殖鱼类的实验放养，并确定放养和未放养河流中放养鱼类与野生鱼类的种群结构和来源。 天然化学特征也将有助于确定重要的招聘领域。 研究结果将使渔业管理者能够就放养策略做出明智的决定。