Species composition and quantity distribution of zooplankton in typical sea area of Ningbo port
ZHOU Wei, WANG Dan-li*, LIN Mian, XU Shan-liang, ZOU Xiu
1. Marine College of Ningbo University, Ningbo 315211, China; 2. Key Laboratory of Applied Marine Biotechnology, Ministry of Education, Ningbo niversity, Ningbo 315211, China
Seasonal variations in the species composition and quantity distribution characteristics of zooplankton were investigated in the Ningbo port sea area from autumn of 2009 to summer of 2010. The results showed 70 kinds of zooplanktons belonging to 3 phylum and 35 genera. Among them, copepod accounted for 73.54%. The dominant species were mainly Acartiella sinensis, Keratella quadrata, Oithona fallax, Microsetella norvegica, Microsetella sp.,Acrocalanus gibber, Oithona brevicornis, etc. The abundance of zooplankton was in the order of summer >autumn >spring >winter. The mean abundance of the four seasons was 2.50×103 ind/m3, 40.16×103 ind/m3, 3.72×103 ind/m3 and 1.20×103 ind/m3. The biomass of zooplankton ranked as summer> spring >autumn >winter. The mean biomass was 88.94 mg/m3, 931.22 mg/m3, 58.74 mg/m3 and 24.49 mg/m3. By comparing with historical information and adjacent sea area, we found that zooplankton biomass was greater [D1] than the East China Sea or equal. The biological diversity (H') in the summer and spring, autumn and winter was significantly different (P <0.05), and a higher biological diversity was found in the summer. Shannon-Wiener diversity index (H'), Species richness (D), Pielou evenness index (J), and the largest diversity index (H'max) basically showed the trend of summer> spring> autumn> winter. Compared with the adjacent sea area, the diversity index (H'max), species richness (D) and the largest diversity index (H'max) displayed the trend of declining.
周伟, 王丹丽*, 林勉, 徐善良, 邹秀. 宁波港典型海域浮游动物种类组成及数量分布特点[J]. , 2013, 32(4): 500-508.
ZHOU Wei, WANG Dan-li*, LIN Mian, XU Shan-liang, ZOU Xiu. Species composition and quantity distribution of zooplankton in typical sea area of Ningbo port. , 2013, 32(4): 500-508.