• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polar biology >Stable isotope-based determinations of the average temperatures experienced by young-of-the-year Svalbard Arctic charr (Salvelinus alpinus (L.))
【24h】

Stable isotope-based determinations of the average temperatures experienced by young-of-the-year Svalbard Arctic charr (Salvelinus alpinus (L.))

机译：基于稳定同位素的年幼斯瓦尔巴德群岛北极鲑（Salvelinus alpinus（L.））所经历的平均温度的确定

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

Mean ambient water temperatures experienced by individual young-of-the-year (YOY) Arctic charr, Salvelinus alpinus (L.), from a Svalbard lake were estimated using measurements of oxygen stable isotopes (δ~(18)O) derived from fish otoliths. Otolith-derived water temperatures differed significantly from temperatures recorded at the outlet river of the Dieset watercourse but were consistent with temperatures previously recorded in shallow littoral areas of other Svalbard lakes where YOY charr are commonly found. This indicates that fixed-point monitoring does not necessarily represent the temperatures and thermal habitats used by individual fish. Otolith-derived water temperatures were also positively related to fish length-at-capture and otolith size, although much of the variation remained unexplained. Differences among individuals could be related to variability in food availability and food intake as well as variation in the initial fish size at hatching. Implications for subsequent investigations into how YOY charr respond and adapt to future climate change are discussed.
机译：使用测量自鱼类的氧稳定同位素（δ〜（18）O）来估算斯瓦尔巴德湖的单个年幼北极鲑（Salvelinus alpinus（L.））经历的平均环境水温耳石。耳石产生的水温与Dieset水道出口河上记录的温度明显不同，但与以前在其他经常发现YOY炭黑的斯瓦尔巴特群岛湖沿岸浅水区记录的温度一致。这表明定点监视不一定代表单个鱼所使用的温度和热栖息地。来自耳石的水温也与捕获的鱼的长短和耳石的大小呈正相关，尽管许多变化仍无法解释。个体之间的差异可能与食物供应量和食物摄入量的变化以及孵化时初始鱼类大小的变化有关。讨论了以后对YOY charr如何应对和适应未来气候变化的调查的意义。

著录项

  • 来源
    《Polar biology》 |2011年第4期|p.591-596|共6页
  • 作者

    J. A. Godiksen; M.-A. Svenning; R. N. Sinnatamby; J. B. Dempson; R. BorgstrΦm; M. Power;

  • 作者单位

    Arctic Ecology Department, Norwegian Institute for Nature Research (NINA), FRAM-High North Research Centre on Climate and the Environment, 9296 TromsΦ, Norway,Department of Arctic and Marine Biology,Faculty of BioSciences, Fisheries and Economics,University of TromsΦ, 9037 TromsΦ, Norway;

    Arctic Ecology Department, Norwegian Institute for Nature Research (NINA), FRAM-High North Research Centre on Climate and the Environment, 9296 TromsΦ, Norway,Department of Arctic and Marine Biology,Faculty of BioSciences, Fisheries and Economics,University of TromsΦ, 9037 TromsΦ, Norway;

    Department of Biology, University of Waterloo,200 University Avenue West, Waterloo,0NN2L 3G1, Canada;

    Fisheries and Oceans Canada, Science Branch,P.O. Box 5667, St. John's, NL A1C 5X1, Canada;

    Department of Ecology and Natural Resource Management,Norwegian University of Life Sciences, 1432 As, Norway;

    Department of Biology, University of Waterloo,200 University Avenue West, Waterloo,0NN2L 3G1, Canada;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    salvelinus alpinus; svalbard; thermal; habitat; young-of-the-year growth; oxygen isotopes;

    机译：丹参斯瓦尔巴群岛热栖息地;年中年轻人的成长;氧同位素;

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