| WANG Guizhong,JIANG Xiaodong,LI Shaojing,WU Lisheng,WU Dingxun. 2005. A potential source of recruitment of Acartia pacifica nauplii: viable benthic resting eggs. Acta Oceanologica Sinica, (2):151－158 |
| A potential source of recruitment of Acartia pacifica nauplii: viable benthic resting eggs |
| A potential source of recruitment of Acartia pacifica nauplii: viable benthic resting eggs |
| Received:June 11, 2004 Revised:August 19, 2004 |
| DOI： |
| Key words:recruitment resting eggs Acartia pacifica |
| 中文关键词: recruitment resting eggs Acartia pacifica |
| 基金项目: |
| Author Name | Affiliation | E-mail | | WANG Guizhong | Department of Oceanography, Institute of Subtropical Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | gzwang@jingxian.xmu.edu.cn | | JIANG Xiaodong | Department of Oceanography, Institute of Subtropical Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | LI Shaojing | Department of Oceanography, Institute of Subtropical Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | WU Lisheng | Department of Oceanography, Institute of Subtropical Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | | | WU Dingxun | Department of Oceanography, Institute of Subtropical Oceanography, Key Laboratory for Marine Environmental Science of the Ministry of Education, Xiamen University, Xiamen 361005, China | |
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| Abstract: |
| Many estuarine and coastal planktonic copepods depend on the hatching of benthic resting eggs for recruitment of nauplii to the water column population. The distribution and abundance of viable resting eggs of Acartia pacifica in the Xiamen Bay were determined by the presence of nauplii in the laboratory. The number of viable eggs varied temporally and spatially. The maximum number (9.2×104m-2) of viable eggs was in summer. In spring the average abundance of viable eggs was 5.6×104 m-2. The abundances of viable eggs in fall and winter were similar, respectively 2.7×104 and 3.3×104 m-2, which were the lowest in the year. The numbers of viable eggs inside the stations of the Xiamen Bay were higher than those outside the stations. The viable eggs were found at all depths (0~10 cm),although not in every station. The maximin number did not necessarily occur in the uppermost centimeter of the sediments but often occurred several centimeters below the water-sediment interface. The accumulation of viable eggs in the seabed of a subtropical bay constitutes a potential source of recruitment of nauplii into the pelagic population. |
| 中文摘要: |
| Many estuarine and coastal planktonic copepods depend on the hatching of benthic resting eggs for recruitment of nauplii to the water column population. The distribution and abundance of viable resting eggs of Acartia pacifica in the Xiamen Bay were determined by the presence of nauplii in the laboratory. The number of viable eggs varied temporally and spatially. The maximum number (9.2×104m-2) of viable eggs was in summer. In spring the average abundance of viable eggs was 5.6×104 m-2. The abundances of viable eggs in fall and winter were similar, respectively 2.7×104 and 3.3×104 m-2, which were the lowest in the year. The numbers of viable eggs inside the stations of the Xiamen Bay were higher than those outside the stations. The viable eggs were found at all depths (0~10 cm),although not in every station. The maximin number did not necessarily occur in the uppermost centimeter of the sediments but often occurred several centimeters below the water-sediment interface. The accumulation of viable eggs in the seabed of a subtropical bay constitutes a potential source of recruitment of nauplii into the pelagic population. |
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