A first approach to build and test the Copepod Mean Size and Total Abundance (CMSTA) ecological indicator using in-situ size measurements from the Plankton Imager (PI)
A first approach to build and test the Copepod Mean Size and Total Abundance (CMSTA) ecological indicator using in-situ size measurements from the Plankton Imager (PI)
复制标题
使用浮游生物成像仪 (PI) 的原位尺寸测量来构建和测试桡足类平均尺寸和总丰度 (CMSTA) 生态指标的第一种方法
DOI：
10.1016/j.ecolind.2020.107307
复制
发表时间：
2021
影响因子：
6.9
通讯作者：
Pitois S
中科院分区：
文献类型：
--
作者：
Pitois S
浮游动物位于初级生产者和鱼类之间，是海洋食物网的关键要素，其营养结构取决于物种的大小分布。浮游动物群落大小结构的变化有可能改变食物网结构，并最终改变食虫鱼类的食物质量。因此，浮游动物在整体生态系统健康中发挥着关键作用，并且由于其生命周期短且对环境变化敏感，因此是环境变异性的理想指标。在这项研究中，我们使用了第一种方法来建立和测试桡足类的平均大小和总的栖息地（CMSTA）在凯尔特海的生态指标，使用类似的方法，HELCOM的平均大小和总库存（MSTS）指标。我们探讨了浮游动物的平均大小，总丰度和生物量与水文和生物变量代表较低和较高的营养水平（即叶绿素a水平和鲱鱼，沙丁鱼，鲱鱼和竹荚鱼的生物量分布）之间的关系。鲱鱼，最强烈的偏好较大的猎物的物种，是唯一的鱼，表现出统计上显着的正相关桡足类的平均大小。在空间上的2维（桡足类的平均大小与丰度）指示图内的站，导致在一个强大的格局鲱鱼分布相关的桡足类是最大的，而不是最丰富的地区。我们的初步结果与以前的研究结果一致，证实浮游动物的平均大小能够反映食物网的状态，从而加强了浮游动物大小作为一个关键性状进行常规监测的重要性。使用浮游生物成像仪（PI）收集了我们的原位浮游动物尺寸测量值。这种自动化系统能够测量样品中的每一种微生物，这意味着平均大小是根据采样群体的实际大小分布计算的。此外，由于桡足类大小的非正态分布，几何平均数被认为是一个更有代表性的描述比算术平均数的社区规模。我们已经证明了（1）CMSTA作为生态系统健康状况和气候影响的潜在指标的潜力，以及（2）PI在收集常规原位浮游动物大小信息以提高平均大小指标方法描述群落结构的能力方面的价值。
Being located between primary producers and fish, zooplankton are a key element of marine food webs, the trophic structure of which is dependent upon the size distribution of species. Changes in zooplankton community size structure have the potential to alter the food web structure and ultimately the quality of food for planktivorous fish. Zooplankton therefore play a key role in overall ecosystem health and are ideal indicators of environmental variability due to their short life cycle and sensitivity to environmental changes. In this study, we used a first approach to build and test the Copepod Mean Size and Total Abundance (CMSTA) ecological indicator in the Celtic Sea, using a similar methodology to that of the HELCOM Mean Size and Total Stock (MSTS) indicator. We explored relationships between zooplankton mean size, total abundance and biomass with hydrographic and biological variables representative of both lower and higher trophic levels (i.e. Chlorophyll-a levels and the biomass distribution of herring, sardine, anchovy, sprat and horse mackerel). Herring, the species with the strongest preference for larger prey, was the only fish that displayed a statistically significant positive correlation with copepod mean size. Displaying the stations spatially within the 2-dimentional (copepod mean size versus abundance) indicator plots, resulted in a strong pattern of herring distribution related to areas where copepods were the largest rather than the most abundant. Our preliminary results are in line with those obtained from previous studies, confirming that zooplankton mean size is able to reflect the state of the food web, and thus reinforce the importance as zooplankton size as a key trait to be routinely monitored. Ourin-situzooplankton size measurements were collected with the Plankton Imager (PI). The ability of this automated system to take measurements for every single organism in a sample meant that the mean size was calculated based on the actual size distribution of the sampled population. Additionally, because of the non-normal distribution of copepod size, the geometric mean was found to be a much more representative description of the community size than the arithmetic mean. We have demonstrated (1) the potential of the CMSTA as a potential indicator of ecosystem health status and climate effects, and (2) the value of the PI in collecting routine in-situ zooplankton size information for improving the power of the mean size indicator approach to describe the community structure.
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DOI：
10.1098/rspb.2007.1752
发表时间：
2008-08-07
影响因子：
4.7
作者：
Casini, Michele;Lovgren, Johan;Kornilovs, Georgs
通讯作者：
Kornilovs, Georgs
加州当前大型浮游动物大小的时空变化：光学浮游生物计数器分析
DOI：
--
发表时间：
2003
期刊：
影响因子：
--
作者：
M. M. Mullin;D. Checkley;M. P. Thimgan
通讯作者：
M. P. Thimgan
根据连续浮游生物记录仪数据推断出西北欧大陆架浮游动物生物量浓度和平均大小的长期变化
DOI：
--
发表时间：
2006
期刊：
影响因子：
--
作者：
S. Pitois;C. Fox
通讯作者：
C. Fox
鲱鱼摄食迁徙可能适应北海东部的Finmarchicus季的时间变化
DOI：
--
发表时间：
2000
期刊：
影响因子：
--
作者：
A. Corten
通讯作者：
A. Corten
海洋浮游生物研究室简介
DOI：
--
发表时间：
1950
期刊：
影响因子：
--
作者：
M. Massuti;R. Margalef
通讯作者：
R. Margalef