中国近海浮游介形类大尺度生态研究Ⅰ.浮游介形类的丰度及其变动规律
Large-scale ecological study on planktonic ostracoda in China’s seas and adjacent watersⅠ.Abundance of planktonic ostracoda and its law of variation
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摘要: 以中国近海为一研究单元,从总体水平上分析浮游介形类的数量变动规律,阐述不同季节个体密度的差异并进行地理上的比较.此外,揭示了浮游介形类平面分布的特点,指出除汕头邻近水域外,其余沿岸区为丰度贫乏区,200m等深线以深海域为低量值的均匀分布区,50～200m等深线之间海域的数量明显增加,同时表明中国近海终年存在3个数量密集区.Abstract: By taking China's seas as a unit for study,this paper analyzes in general the law of abundance variation of planktonic ostracoda and illustrates the difference of individual density in different seasons and areas.In addition, based on the features of horizontal distribution of planktonic ostracoda,this paper points out that except the waters off Shantou in the Eastern Guangdong,all the other coastal areas are very low in abundance,that the waters deeper than the 200 m isobar have a homogenous distribution of low abundance and that the waters between the isobars of 50 m and 200 m have distinctly increased abundance, though in China's seas,there exist all the year round three zones with concentrated abundance of planktonic ostracoda.
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Key words:
- Planktonic ostracoda /
- abundance /
- law of variation
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