...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ICES Journal of Marine Science >Linear decline in red snapper (Lutjanus campechanus) otolith Δ~(14)C extends the utility of the bomb radiocarbon chronometer for fish age validation in the Northern Gulf of Mexico
【24h】

Linear decline in red snapper (Lutjanus campechanus) otolith Δ~(14)C extends the utility of the bomb radiocarbon chronometer for fish age validation in the Northern Gulf of Mexico

机译：红鲷鱼（Lutjanus campechanus）耳石Δ〜（14）C的线性下降扩展了炸弹放射性碳计时器的实用性，用于墨西哥北部湾的鱼龄验证

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Radiocarbon (Delta C-14) was analyzed in northern Gulf of Mexico (nGOM) red snapper (Lutjanus campechanus) otolith cores (n = 23), otolith edge samples (n = 12), and whole age-0 otoliths (n = 9), with edge samples and whole age-0 otoliths constituting known-age samples. There was no significant difference in the linear relationship of Delta C-14 versus year of formation between regional corals and known-age otolith samples, and a linear regression fit to the combined data from 1980 to 2015 extends the utility of the bomb radiocarbon chronometer for age validation. The entire regional coral and known-age otolith data set (1940 to 2015) was then utilized as a reference series to validate otolith-derived red snapper age estimates for cored otolith samples. A loess regression was fit to the reference data and then the sum of squared residuals (SSR) was computed from predicted versus observed birth years for cored adult otolith samples. This process was then repeated for ages biased 61-4 years. Ages with no bias applied had the lowest SSR, thus validating red snapper age estimates and demonstrating the utility of the combined regional coral and known-age red snapper otolith Delta C-14 time series for age validation of nGOM marine fishes.
机译：在墨西哥湾北部（nGOM）红鲷鱼（Lutjanus campechanus）的耳石岩心（n = 23），耳石边缘样品（n = 12）和整个年龄为0的耳石（n = 9）中分析了放射性碳（Delta C-14） ），边缘样本和整个0岁的耳石构成了已知年龄的样本。区域珊瑚和已知年龄的耳石样本之间的Delta C-14与形成年份的线性关系没有显着差异，对1980年至2015年合并数据的线性回归拟合扩展了炸弹放射性碳计时计的实用性。年龄验证。然后，将整个区域珊瑚和已知年龄的耳石数据集（1940年至2015年）用作参考系列，以验证带耳耳石样本的耳石来源红鲷鱼年龄估计。将黄土回归拟合为参考数据，然后从核心成年耳石样本的预测出生年与观察出生年之间计算出残差平方和（SSR）。然后针对年龄在61-4岁之间的年龄重复此过程。没有施加偏差的年龄具有最低的SSR，因此验证了红鲷鱼的年龄估计值，并证明了组合的区域珊瑚和已知年龄的红鲷鱼耳石Delta C-14时间序列对nGOM海洋鱼类的年龄验证的实用性。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号