| 摘要: |
| 1997年9月、12月，1998年2月、4月、8月、11月以及1999年2月和5月在胶州湾采集桡足类幼虫和浮游生纤毛虫的样品。样品用Lugol’s试剂固定(最后浓度1%)，用显微镜计数桡足类幼虫和浮游生纤毛虫的丰度，并计算总生物量(表层生物量和水体生物量)。桡足类幼虫、无壳纤毛虫和砂壳纤毛虫的最大丰度分别为850ind/L(1998年8月)、21300ind/L(1998年8月)和1720ind/L(1999年5月)。表层的总丰度为10–22630ind/L，水平分布湾内比湾外多。表层纤毛虫和桡足类幼虫的总生物量为0.10–380.27μgC/L，水体的生物量为0.20–1426.02mgC/m2。 |
| 关键词: 浮游生纤毛虫 桡足类幼虫 胶州湾 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目，49790010号，39630060号 |
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| ABUNDANCE AND BIOMASS OF COPEPOD NAUPLII AND CILIATES IN JIAOZHOU BAY |
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ZHANG Wu Chang, WANG Rong
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Institute of Oceanology, The Chinese Academy of Sciences, Qingdao, 266071
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| Abstract: |
| This paper presents data of ciliates and copepod nauplii abundance and biomass from eight cruises (September, December, 1997; February, April, August, November, 1998; February, May, 1999) in Jiaozhou Bay. Water samples were taken by 2L Niskin Bottles at ten stations during every cruise. One liter water was preserved in plastic bottle with Lugol’s (1%). The sample scheme of water layer was surface, middle and bottom according to water depth. The samples were examined with the method of Utermohl (1958) one month after sampling. Carbon: volume ratio was 0.05pgC/μm3 for copepod nauplii (Mullin, 1969), 0.19pgC/μm3 for ciliates (Putt et al, 1989). Body volume of tintinnids was assumed to be 50% of that of the lorica (Beers et al, 1969).
Copepod nauplii dominated in September 1997. The aloricate oligotrichous ciliates were dominant through December 1997 to February 1999. Tintinnids dominated in May 1999. The maximum abundance of copepod nauplii, aloricate ciliates and tintinnids were 850 (August, 1998), 21300 (August, 1998) and 1720 ind/L (May, 1999) respectively. The total abundance of the above three in the surface layer was 10–22350 ind/L, with larger abundance in the inner part of the bay. There was no obvious trend in the vertical distribution. The total biomass of copepod nauplii, aloricate ciliates and tintinnids in the surface layer was in the range of 0.10–380.27LgC/L, water column biomass 0.20–1426.02mgC/m2. |
| Key words: Ciliate, Copepod nauplii, Jiaozhou Bay |
