摘要
本项研究以哲水蚤桡足类为实验材料,通过用荧光法测定其肠内植物色素(叶绿素a+褐色素)的办法,来估算哲水蚤的现场摄食活动。在鉴定的16个种中,有13种含有肠荧光。观察肠荧光与周围食物之间不存在显著相关。还观察到有3个种的肠荧光有强烈昼夜变化,其高值出现在夜间。
Calanoid copepods were collected from sampling stations in the Zhujiang River Estuary (113°04′-114°20′E; 21°17′-22°19′N) from June to December, 1989. In situ grazing activity was estimated by measureing the fluorescence of plant pigments (chlorophyll a + pha-eopigment) in the guts of the animals. 1.3 of 16 species examined contained gut fluoresce-nce between sampling stations. No significant correlation between gut fluorescence and ambient food concentration was found. Strong diurnal variation in gut fluorescence with highest values at night was observed in 3 species.
出处
《海洋科学》
CAS
CSCD
北大核心
1991年第3期60-64,共5页
Marine Sciences
关键词
珠江口
哲水蚤
肠
叶绿素
荧光分析
Zhujiang Estuary, Calanoid copepods, Gut Fluorescence
