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根据1997～2000年东海23°30′～33°N、118°30′～128°E海域4个季节海洋调查资料,对东海毛颚类(Chaetognatha)优势种与环境的关系进行研究。结果表明,毛颚类优势种季节交替不明显,优势度最高的种分别是:夏季肥胖箭虫(Sagittaenflata)、冬、春季海龙箭虫(Sagittanagae)和秋季百陶箭虫(Sagittabedoti)。主要优势种中,百陶箭虫聚集强度指标值最高,其次是海龙箭虫,肥胖箭虫最低。肥胖箭虫与表层温度线性关系极其显著,肥胖箭虫和海龙箭虫与表层盐度的关系以及百陶箭虫与表层温度和表层盐度的关系符合YieldDensity模型。肥胖箭虫高丰度区往往位于台湾暖流与浙江沿岸流交汇处偏暖水的一侧,海龙箭虫高丰度区位于暖流与沿岸流交汇处偏冷水团的一侧。在水温较高的环境下,百陶箭虫高丰度区位于暖流与沿岸流交汇处偏淡水水团的一侧。
Based on the data from four seasons in the East China Sea from 23 ° 30 ’to 33 ° N and 118 ° 30’ to 128 ° E from 1997 to 2000, the relationship between the dominant species of Chaetognatha and the environment in the East China Sea was studied. The results showed that the dominant species of Chamaejasme alternated with seasons, the dominant species were Sagittaenflata in summer, Sagittanagae in winter and spring and Sagittabedoti in autumn. Among the dominant species, Agkistrodon acutus accumulated the highest intensity index, followed by the sea-nosed arrowworm and the lowest fat-worm. The linear relationship between O. argus and surface temperature is extremely significant. The relationship between O. argus and H. armigera and the surface salinity and the relationship between B. argus and surface temperature and surface salinity conform to the YieldDensity model. The high-abundance area of fat arrowworm is often located on the side of the warm water between the Taiwan warm current and the confluence of the Zhejiang coast. The high-abundance area of the arrowworm is located on the side of the cold water mass at the confluence of the warm and coastal streams. Under the conditions of high water temperature, the high-abundance zone of Agkistrodon acutus is located on the side of the weak water-water mass at the confluence of warm and coastal currents.