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首页> 外文期刊>Journal of Aquatic Sciences >ENVIRONMENTAL CONDITIONS AND PLANKTON OF THE OMU CREEK,LAGOS, NIGERIA
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ENVIRONMENTAL CONDITIONS AND PLANKTON OF THE OMU CREEK,LAGOS, NIGERIA

机译：尼日利亚拉各斯OMU CREEK的环境条件和浮游生物

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摘要

Phytoplankton, zooplankton and water quality characteristics in Omu creek were investigated (October 2012 - February 2013). Air and water temperatures (°C) (30.34), transparency (cm) (23.43), conductivity (|iS/cm) (2728.12) and salinity (°/00) (1-37) recorded higher values in the dry period while acidity (mg/L) (8.48), alkalinity (mg/L) (8.48) and total hardness (mg/L) (349.10) recorded reduced values. The phytoplankton diversity consisted of diatoms and blue-green algae. A total of 8 species from5 genera were observed. Diatoms were more diverse with 7 species from 4 genera. The blue-green algae recorded one species. Diatoms accounted for 98% (centric - 86.7% and pennate diatoms -13.3%) of the total phytoplankton. Zooplankton diversity consistedof adult copepods, rotifers and juveniles stages from 10 species and 10 genera were recorded. Crustaceans were made up of 7 species from 7 genera. Rotifers recorded 3 species from 3 genera and the juveniles, 3 larva stages. Juvenile stages accounted for51.85% (gastropod larva - 60.7%, copepod nauplii - 25% and rotiferan egg - 14.3%). Diatoms and juveniles stages were more frequently occurring and both increased in terms of number in the dry period, notably January. Low plankton species diversity is possibly linked to the effect of pollution and dilution from inflowing lagoonal water associated with rainfall.
机译：调查了乌木河的浮游植物，浮游动物和水质特征（2012年10月至2013年2月）。在干燥期，空气和水的温度（°C）（30.34），透明度（cm）（23.43），电导率（| iS / cm）（2728.12）和盐度（°/ 00）（1-37）较高。酸度（mg / L）（8.48），碱度（mg / L）（8.48）和总硬度（mg / L）（349.10）降低了。浮游植物的多样性由硅藻和蓝藻组成。共观察到来自5个属的8种。硅藻种类更多，有4个属的7种。蓝藻记录了一种。硅藻占浮游植物总数量的98％（中心-86.7％和戊二酸-13.3％）。记录到浮游动物的多样性，包括成年，足类，轮虫和幼虫期，分别来自10个物种和10个属。甲壳类由7属7种组成。轮虫记录了3个属和3个幼虫阶段中的3个物种。少年阶段占51.85％（腹足纲幼虫为60.7％，co足幼体为25％，轮虫卵为14.3％）。硅藻和幼虫阶段更频繁发生，并且在干旱时期，特别是在一月份，两者的数量都增加了。浮游生物物种多样性低可能与降雨造成的流入泻湖水的污染和稀释效应有关。

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