Predation Mortality of Fish Larvae: Peril of the Unfit or the Unfortunate?

鱼类幼虫的捕食死亡率：不健康者的危险还是不幸者的危险？

• 批准号: 9529207
• 负责人: James Cowan
• 金额: $ 18.65万
• 依托单位: University of South Alabama
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-15 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9529207&HistoricalAwards=false
• 关键词: Predation; Mortality; Fish; Larvae; Peril

9529207 Cowan Fluctuations in the abundances of fish stocks result from biotic and environmental factors that affect the survival of early life stages. Mortality from predation is a major regulator of year-class size and its interaction with larval growth rate and the time at which larvae are vulnerabile to predators may be the mechanisms most often operating in the sea. This research focuses on an alternative to a generally accepted hypothesis for larval recruitment, specifically, that growth rate and innate fitness, not simply size, influence survival potential of larvae. Data from ethological, modeling and mesocosm experiments will provide a basis for understanding the importance of predation on recruitment of larvae to adult stocks. ***

9529207科万 鱼类资源丰度的波动是影响早期生命阶段生存的生物和环境因素造成的。死亡率从捕食是一个主要的调节器的一年级大小和其相互作用与幼虫的生长速度和时间，幼虫是不稳定的捕食者可能是最经常在海中运作的机制。 这项研究的重点是替代一个普遍接受的假设，幼虫招聘，特别是，生长速度和先天健身，而不仅仅是大小，影响幼虫的生存潜力。 行为学，建模和围隔实验的数据将提供一个基础，了解捕食的重要性，招聘的幼虫到成年股票。 ***