Diadromous stream fishes: a model system for investigating sources of variation in recruitment.

产鱼溪流鱼类：调查补充变异来源的模型系统。

• 批准号: DP0345511
• 负责人: Prof Stephen Swearer
• 金额: $ 11.5万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0345511
• 关键词: Diadromous; stream; fishes; model; system

Our aim is to examine the relationship between adult abundance and recruitment in local populations of a diadromous stream fish to identify the source(s) of variation in recruitment. We will accomplish this by measuring larval production and recruitment among streams that vary in adult abundance, strength of settlement cues, and potential for larval dispersal. We will also use environmental markers of larval origin to quantify the degree of self-recruitment and dispersal within/among populations. The results will broaden our understanding of the influence of local (production, habitat) versus regional (dispersal) processes to local population dynamics, information needed for effective stream management.

我们的目的是研究一种双产卵溪流鱼类的本地种群中成鱼丰度与招募之间的关系，以确定招募变化的来源。我们将通过测量不同溪流的幼虫产量和招募来实现这一目标，这些溪流在成虫丰度、定居线索的强度和幼虫扩散的潜力方面存在差异。我们还将使用幼虫来源的环境标记来量化种群内/种群间的自我招募和分散程度。研究结果将扩大我们对当地（生产、栖息地）与区域（扩散）过程对当地种群动态的影响的理解，这是有效溪流管理所需的信息。