春季和秋季东海陆架区浮游纤毛虫的丰度和生物量  

Abundance and biomass of planktonic ciliates in the shelf of East China Sea in spring and autumn

作　　者：于莹[1,2] 张武昌[1] 周锋[3] 刘诚刚[3,4] 丰美萍[1,2] 李海波[1,2] 赵苑 肖天[1] 

机构地区：[1]中国科学院海洋研究所海洋生态与环境科学重点实验室,山东青岛266071 [2]中国科学院大学,北京100049 [3]国家海洋局第二海洋研究所卫星海洋环境动力学国家重点实验室,杭州310012 [4]国家海洋局海洋生态系统与生物地球化学重点实验室,杭州310012

出　　处：《应用生态学报》2013年第8期2310-2318,共9页Chinese Journal of Applied Ecology

基　　金：国家重点基础研究发展计划项目(2011CB409804);国家自然科学基金项目(41121064;40876085)资助

摘　　要：于2011年春季(5月)和秋季(11月)在东海陆架区进行浮游纤毛虫丰度和生物量的调查.春季和秋季纤毛虫的平均丰度分别为(614±861)和(934±809)ind·L-1,平均生物量分别为(1.70±3.91)和(0.93±0.99)μgC·L-1.表层纤毛虫丰度和生物量的高值区春季主要分布在近岸及远岸海区,秋季主要分布在远岸海区.春季纤毛虫的丰度和生物量在水体上层较高;秋季纤毛虫主要分布在水体上层,有时在水体底层也会出现丰度和生物量的高值.春季无壳纤毛虫群落的粒级较大,秋季较小.砂壳纤毛虫占纤毛虫丰度的平均比例春季和秋季分别为(26.9±34.3)%和(44.9±25.2)%.两个季节共鉴定出砂壳纤毛虫27属52种,春季丰度较大的种为原始筒壳虫、橄榄领细壳虫及筒状拟铃虫,秋季丰度较大的种为原始筒壳虫、小领细壳虫及矮小拟铃虫.纤毛虫丰度与温度、叶绿素a(Chla)浓度呈显著正相关.砂壳纤毛虫丰度与盐度呈显著负相关,群落结构变化与温度显著相关.An investigation was made on the abundance and biomass of planktonic ciliates in the shelf of East China Sea in May （spring） and November （autumn）, 2011. The abundance of the ciliates in spring and autumn was averagely （614±861） and （934±809） ind·L-1, and the biomass was averagely （1.70±3.91） and （0.93±0.99） μg C·L-1, respectively. The high abundance and biomass in spring were found in coastal and offshore areas, and those in autumn were in offshore only. In the two seasons, the ciliates tended to accumulate in the waters upper layer, and sometimes flocked in the bottom. In the spring, aloricate ciliate species were larger than those in the autumn. Tintinnids occupied （26.9%±34.3）% and （44.9%±25.2）% of the total ciliates abundance in spring and autumn, respectively. In taxonomy, 52 tintinnid species of 27 genera were identified. The most dominant species were Tintinnidium primitivum, Stenosemella oliva, and Tintinnopsis tubulosoides in spring, and Tintinnidium primitivum, Stenosemella parvicollis, and Tintinnopsis nana in autumn. The ciliates abundance showed significant positive correlations with water temperature and Chl a concentration, the tintinnids abundance showed significant negative correlation with water salinity, and the tintinnids community was significantly related to water temperature.

关 键 词：浮游纤毛虫 丰度 生物量 东海 

分 类 号：Q958.8[生物学—动物学]