摘要
1 997年 9月、1 2月 ,1 998年 2月、4月、8月、1 1月以及 1 999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( 1 998年 8月 )、2 1 30 0ind/L( 1 998年 8月 )和 1 72 0ind/L( 1 999年 5月 )。表层的总丰度为 1 0— 2 2 630ind/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 .1 0— 380 .2 7μgC/L ,水体的生物量为0 .2 0— 1 42 6.0 2mgC/m2 。
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:volumn ratio was 0.05 pgC/μm 3 for copepod nauplii (Mullin, 1969), 0.19pgC/μm 3 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 —380.27μgC/L, water column biomass 0.20—1426.02mgC/m 2.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
2001年第3期280-287,共8页
Oceanologia Et Limnologia Sinica
基金
国家自然科学基金!资助项目
4 9790 0 1 0号
3 963 0 0 60号
