| Seasonal abundance and distribution of pelagic tunicates (Chordata: Thaliacea) in the central South China Sea |
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| 作者姓名： | LIN Mao LIN Rongcheng |
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| 作者单位： | LIN Mao 1*，LIN Rongcheng 2 1. Open Laboratory of Environment Science，Third Institute of Oceanography，State Oceanic Administration，Xiamen 361005，China 2. Key Laboratory of Marine Biogenetic Resource，Third Institute of Oceanography，State Oceanic Administration，Xiamen 361005，China |
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| 基金项目： | 国家专项基金;国家海洋局资助项目;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 1IntroductionTunicates(Chordata:Thaliacea)are large pe-lagic gelatinous zooplankton.They can be used as in-dicator species for ocean currents and water bodies(Chen et al.,1980;Chen et al.,1988;Lin,1988,1990;Lin and Zhang,1993;Thompson,1948).They also play…
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| 关 键 词： | 南海 丰度 地理分布 季节变化 浮游动物 |
Seasonal abundance and distribution of pelagic tunicates (Chordata: Thaliacea) in the central South China Sea |
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| LIN Mao,LIN Rongcheng.Seasonal abundance and distribution of pelagic tunicates (Chordata: Thaliacea) in the central South China Sea[J].Acta Oceanologica Sinica,2006,25(3):148-156. |
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| Authors: | LIN Mao and LIN Rongcheng |
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| Institution: | 1.Open Laboratory of Environment Science, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China2.Key Laboratory of Marine Biogenetic Resource, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China |
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| Abstract: | A total of 168 macro-zooplankton samples from 42 stations in the central South China Sea (12°～20° N, 111 °～ 118° E, an area of about 64 × 104 km2 ) were collected in September 1983 ( autumn), April 1984 ( spring), August 1984 (summer) and December 1984 (winter). Twenty-three species and subspecies of tunicates were found, of which Thalia democratica complex (including T. d. orientalis and T. d. echinata) and Doliolum denticulatum were the dominant species, and accounted for 95.7% ,90. 0%, 91.8% and 90. 5% of the total tunicates found in autumn, winter, spring and summer, respectively. The highest abundance ( with a mean of 2. 37 ind./m3 ) occurred in autumn. There are strong correlations between the abundances of the tunicates and those of phytoplankton and chlorophyll a concentration. However, tunicates also aggregate in areas with low primary production in the autumn survey, probably due to the water circulation pattern. |
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| Keywords: | South China Sea tunicates abundance and distribution |
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