Fish growth and degree-days I: selecting a base temperature for a within-population study
Fish growth and degree-days I: selecting a base temperature for a within-population study
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DOI：
10.1139/cjfas-2013-0295
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发表时间：
2014-01-01
影响因子：
2.4
通讯作者：
Venturelli, Paul A.
中科院分区：
文献类型：
--
作者：
Chezik, Kyle A.;Lester, Nigel P.;Venturelli, Paul A.
度日（DD）是一种越来越流行的解释鱼类生长和发育变化的方法。通过包括基础温度（t - 0）， DD公式限制了与t - 0生长相关的t - 0温度的计算。然而，我们对生长研究的回顾表明，对于给定的鱼类，使用了多个T-o值。T-o确定了T-o如何影响DD T-o解释种群内生长变化的能力，我们首先证明了DD T-o描述生长季节的能力是稳健的T-o值较低。然后，我们分析了来自北美8个物种和85个水体的未成熟长度数据，结果表明，T-o值范围很广，可以有效地解释生长变化。基于这些结果，我们认为，对于大多数单种群研究，精确的T-o估计是没有根据的，并建议采用标准T-o值（0,5,10,15℃）。标准化有助于比较研究，并促进DD在未来研究中的使用。为此，我们提供了将给定T-o的年DD转换为标准T-o的年DD的方程。
Degree-days (DD) are an increasingly popular method for explaining variation in fish growth and development. By including a base temperature (T-o) the DD formula limits calculations T-o temperatures that are relevant T-o growth. However, our review of growth studies shows multiple T-o values in use for a given fish species. T-o determine how T-o affects the ability of DD T-o explain within-population growth variation, we first show that the ability of DD T-o describe a growing season is robust T-o low values of T-o. We then analyze immature length data from eight species and 85 water bodies in North America T-o show that there is a broad range of T-o values that effectively explain growth variation. Based on these results, we argue that precise T-o estimates are unwarranted for most single-population studies and recommend standard T-o values (0, 5, 10, 15 degrees C). Standardization facilitates comparative studies and promotes the use of DD in future research. To this end, we provide equations for converting annual DD at a given T-o to annual DD at a standard T-o.