Do larval fish leave the reef to avoid parasites?

幼鱼会离开珊瑚礁以避免寄生虫吗？

• 批准号: DP0449903
• 负责人: Dr Alexandra Grutter
• 金额: $ 22.28万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0449903
• 关键词: Do; larval; fish; leave; reef

Although fundamental to understanding the community structure of reef fishes, why fish larvae migrate to the open ocean remains controversial. Traditional explanations are that it results in dispersal, avoidance of predators, and increased food. Recent work on the Great Barrier Reef, however, suggests avoiding reef-based micropredatory parasites may be more important. To determine if this so, we will investigate the effect of parasites on larval fish condition, performance, and susceptibility to micropredators; whether larval fish are vulnerable to reef-based micropredators; the effects of micropredators on fish settlement patterns; and whether larval fish that don't migrate have adaptations to avoid micropredators.

虽然了解珊瑚礁鱼类的群落结构至关重要，但为什么鱼苗会迁移到公海仍然存在争议。传统的解释是，它导致分散，避免捕食者，并增加食物。然而，最近对大堡礁的研究表明，避免珊瑚礁上的微型捕食性寄生虫可能更重要。为了确定是否如此，我们将调查寄生虫对幼鱼状况，性能和对micropredators的敏感性的影响;幼鱼是否容易受到基于珊瑚礁的micropredators的影响; micropredators对鱼类定居模式的影响;以及不迁移的幼鱼是否有适应性以避免micropredators。