Evaluation of trade-offs in traditional methodologies for measuring metazooplankton growth rates: Assumptions, advantages and disadvantages for field applications

Evaluation of trade-offs in traditional methodologies for measuring metazooplankton growth rates: Assumptions, advantages and disadvantages for field applications
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测量后生动物生长率的传统方法的权衡评估:现场应用的假设、优点和缺点

DOI:
10.1016/j.pocean.2019.102137
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发表时间:
2019
影响因子:
4.1
通讯作者:
Hopcroft, Russell R.
Hopcroft, Russell R.
中科院分区:
地球科学1区
文献类型:
--
作者:
Kobari, Toru;Sastri, Akash R.;Yebra, Lidia;Liu, Hui;Hopcroft, Russell R.

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浮游动物的生长速度最终决定了海洋生态系统对区域和全球气候变化的功能反应,因为它们决定了浮游动物群落中可供较高营养水平使用的物质和能量的数量和分布。尽管可用于测量浮游动物生长的技术多种多样,但没有或很少有方法被普遍应用于自然浮游动物种群或群落,各种方法之间的比较有限。在这里,我们回顾和汇编了估计后生浮游动物重量比增长率的传统方法的数据,描述了每种方法的原理和基本假设,最后描述了它们的优点和缺点。这篇综述包括时间序列的分析(即自然队列方法)、三种实验方法(即人工队列、蜕皮率和产卵量)和几个已应用于特定阶段、种群或群落行会的经验模型。尽管过去已经提出了一些方法学问题及其解决方案,但没有一种单一的方法能够充分解决后生浮游动物群落的高度生物多样性,并解决我们有限的容量测定速度。我们建议对方法进行更正式的比较,以便直接进行交叉校准,以促进今后的跨地点综合。
Zooplankton growth rates ultimately shape the functional response of marine ecosystems to regional and global climate changes, because they determine the quantity and distribution of matter and energy within the zooplankton community available to higher trophic levels. Despite the variety of techniques available for measuring zooplankton growth, no or few approaches have been universally applied to the natural zooplankton populations or community and there are only a limited number of comparisons among the methods. Here we review and compile data for the traditional methods for estimating metazooplankton weight-specific growth rates, describe the principles and underlying assumptions of each method, and finally their advantages and disadvantages. This review encompasses the analysis of time-series (i.e., Natural Cohort method), three experimental approaches (i.e., Artificial Cohort, Molting Rate and Egg Production) and several empirical models that have been applied to specific stages, populations or community guilds of metazooplankton in the field. Whereas, some methodological problems and their resolution have been proposed in the past, no single method adequately addresses the high biodiversity of metazooplankton communities and resolves our limited capacity determining rates. We recommend a more formal comparison of methodologies be undertaken that would allow for their direct cross-calibration to facilitate future cross-site synthesis.
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