...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Southeastern naturalist >Precision and Accuracy of Age Estimates Obtained from Anal Fin Spines, Dorsal Fin Spines, and Sagittal Otoliths for Known-Age Largemouth Bass
【24h】

Precision and Accuracy of Age Estimates Obtained from Anal Fin Spines, Dorsal Fin Spines, and Sagittal Otoliths for Known-Age Largemouth Bass

机译：从肛门翅片，背鳍脊柱和已知年龄血腥鲈鱼的矢状耳石率获得的年龄估计的精度和准确性

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

Sagittal otoliths are the preferred aging structure for Micropterus spp. (black basses) in North America because of the accurate and precise results produced. Typically, fisheries managers are hesitant to use lethal aging techniques (e.g., otoliths) to age rare species, trophy-size fish, or when sampling in small impoundments where populations are small. Therefore, we sought to evaluate the precision and accuracy of 2 non-lethal aging structures (i.e., anal fin spines, dorsal fin spines) in comparison to that of sagittal otoliths from known-age Micropterus salmoides (Largemouth Bass; n = 87) collected from the Ocmulgee Public Fishing Area, GA. Sagittal otoliths exhibited the highest concordance with true ages of all structures evaluated (coefficient of variation = 1.2; percent agreement = 91.9). Similarly, the low coefficient of variation (0.0) and high between-reader agreement (100%) indicate that age estimates obtained from sagittal otoliths were the most precise. Relatively high agreement between readers for anal fin spines (84%) and dorsal fin spines (81%) suggested the structures were relatively precise. However, age estimates from anal fin spines and dorsal fin spines exhibited low concordance with true ages. Although use of sagittal otoliths is a lethal technique, this method will likely remain the standard for aging Largemouth Bass and other similar black bass species.
机译：矢状障碍物是Micropterus SPP的优选老化结构。 （黑贝斯）在北美，由于生产的准确性和精确的结果。通常，渔业经理犹豫不决用于使用致命的老化技术（例如，右侧）来年龄稀有物种，奖杯大小的鱼类，或者在小型蓄水中抽样，其中群体很小。因此，我们试图评估2个非致命老化结构（即肛门翅片，背侧翅片）的精度和准确性，与来自已知时期的微生物鲑鱼（Largemouth Bass; n = 87）收集的矢状耳骨来自Ocmulgee公共钓鱼区，GA。矢状障碍卵石具有评价所有结构的真实年龄的最高一致性（变异系数= 1.2;百分比协议= 91.9）。类似地，低变异系数（0.0）和读者协议之间的高度（100％）表明从矢状右侧获得的年龄估计是最精确的。肛门翅片（84％）和背鳍脊柱（81％）之间的读者之间的相对高的一致性建议，结构相对精确。然而，肛门翅片和背鳍脊柱的年龄估计表现出与真实年龄的低调。虽然使用矢状偏离是一种致命的技术，但这种方法可能仍然是老化大嘴巴鲈鱼和其他类似的黑低音物种的标准。

著录项

  • 来源
    《Southeastern naturalist》 |2017年第2期|共10页
  • 作者

    Klein Zachary B.; Bonvechio Timothy F.; Bowen Bryant R.; Quist Michael C.;

  • 作者单位

    Univ Idaho Dept Fish &

    Wildlife Sci Idaho Cooperat Fish &

    Wildlife Res Unit Moscow ID 83844 USA;

    Georgia Dept Nat Resources POB 2089 Waycross GA 31052 USA;

    Georgia Dept Nat Resources POB 2089 Waycross GA 31052 USA;

    Univ Idaho Dept Fish &

    Wildlife Sci Idaho Cooperat Fish &

    Wildlife Res Unit US Geol Survey Moscow ID 83844 USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
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