In the coastal marine ecosystem, zooplankton plays an important role. Its distribution and assortment, however, are driven by several physio-chemical parameters in an association. In the present study, a short-term investigation on the zooplankton community was carried out between July 2016 to November 2016 at the coastal region of Muttukadu, Chennai to unveil the critical association between zooplankton and physio-chemical parameters. Pronounced changes in physio-chemical parameters were recorded in study area. Nitrate (0.55 ± 0.05 µM) and nitrite (6.23 ± 1.35 µM) showed an inverse relationship with chlorophyll-a during August and November. Among the identified zooplankton groups, copepods cover 52 % of total zooplankton abundance except for the month of August 2016. This was followed by a contrast in abundance between calanoid copepod (ranging from 182 ± 45 – 67 ± 1 Individuals L^-1) and Brachionus sp. (rotifer) (ranging from 15 ± 3 – 7 ± 1 Individual L^-1) in the months of July and September 2016. Our findings shows a crucial binding between physio-chemical parameters, phytoplankton (chlorophyll-a), and zooplankton, and dependency between plankton groups for food within the Muttukadu ecosystem.

中文翻译：

---

环境因素变化对浮游动物群落影响的短期研究

在沿海海洋生态系统中，浮游动物起着重要作用。然而，它的分布和分类是由几种物理化学参数共同驱动的。在本研究中，于2016年7月至2016年11月在钦奈Muttukadu沿海地区对浮游动物群落进行了短期调查，以揭示浮游动物与理化参数之间的关键联系。在研究区域记录了理化参数的明显变化。硝酸盐（0.55±0.05 µM）和亚硝酸盐（6.23±1.35 µM）与叶绿素a呈反比关系在八月和十一月。在确定的浮游动物群体中，co足类动物覆盖了浮游动物总数量的52％，2016年8月除外。随后是cal足类足动物（在182±45 – 67±1个个体L ^-1范围内）和Brachionus之间的丰度对比。sp。（轮虫）（范围为15±3 – 7±1个个体L ^-1）在2016年7月和9月。我们的发现表明，理化参数，浮游植物（叶绿素a）和浮游动物之间具有至关重要的结合，并且Muttukadu生态系统中的浮游生物之间的食物依赖。