Environmental Histories of Larval Herring in the Gulf of Maine

缅因湾幼鱼鲱鱼的环境历史

• 批准号: 8816662
• 负责人: David Townsend
• 金额: $ 15.73万
• 依托单位: Bigelow Laboratory for Ocean Sciences
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-02-15 至 1992-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8816662&HistoricalAwards=false
• 关键词: Environmental; Histories; Larval; Herring; Gulf

The principal investigators are continuing their research on the use of Sr/Ca ratios in fish otoliths to resolve questions about an organism's growth rate history and about the environmental conditions that fish were exposed to during their growth. There are two phases: (1) a laboratory phase to improve the technique the investigators developed to examine Sr/Ca ratios in otolith bands, and (2) a field phase to gain insight into how the overwintering distibutions of herring larvae in the Gulf of Maine may affect recruitment. For the field component of their study, they will determine the distribution of herring larve shortly after spawing in the fall and in mid-winter. The data obtained will be compared with Sr/Ca otolith measurements on adult fish to determine if the distribution of larvae observed is reflected in the otolith banding.

主要研究人员正在继续他们的研究， 利用鱼类耳石中的Sr/Ca比值来解决 一个生物体的生长速度历史和环境 鱼在生长过程中所处的环境。 那里 分为两个阶段：（1）实验室阶段，改进技术 研究人员开发了耳石中Sr/Ca比值的检测方法， 带，和（2）场相位，以了解如何 缅因州海湾鲱鱼幼虫的越冬分布 可能会影响招聘。 对于他们研究的实地部分， 他们将很快确定鲱鱼幼虫的分布 在秋天和仲冬产卵后 获得的数据 将与成年鱼的Sr/Ca耳石测量结果进行比较， 确定观察到的幼虫分布是否反映在 耳石环带