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研究利用鱼类耳石中的 Sr/Ca 比率来解决有关生物体生长速率历史以及鱼类在生长过程中所接触的环境条件的问题。 分为两个阶段：(1) 实验室阶段，以改进研究人员开发的用于检查耳石带中 Sr/Ca 比率的技术；(2) 现场阶段，以深入了解鲱鱼幼虫在海湾的越冬分布情况。缅因州可能会影响招聘。 对于他们研究的实地部分，他们将确定秋季和冬季产卵后不久的鲱鱼幼虫的分布。 获得的数据将与成鱼的 Sr/Ca 耳石测量值进行比较，以确定观察到的幼虫的分布是否反映在耳石带中。