PHYTOPLANKTON PIGMENTS AND GROWTH-RATES, AND MICROZOOPLANKTON GRAZING IN A LARGE TEMPERATE ESTUARY

被引:92
|
作者
MCMANUS, GB
EDERINGTONCANTRELL, MC
机构
[1] CHESAPEAKE BIOL LAB, SOLOMONS, MD 20688 USA
[2] UNIV SO ALABAMA, DEPT MARINE SCI, MOBILE, AL 36688 USA
关键词
D O I
10.3354/meps087077
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
We used the dilution method to measure phytoplankton growth and microzooplankton grazing at 2 stations in Chesapeake Bay, USA, during spring, summer, and fall. Differential growth among phytoplankton taxa and selectivity of microzooplankton grazing were evaluated through the measurement of taxon-specific pigments. Some taxa showed consistently high growth rates (e.g. zeaxanthin, dn indicator of cyanobacteria, always exceeded chlorophyll a in growth, ranging up to 2.52 d-1), while others varied widely. Across all experiments and pigments, microzooplankton grazing was correlated with phytoplankton growth rates and was significant in the removal of phytoplankton biomass, often equalling or exceeding growth estimates.
引用
收藏
页码:77 / 85
页数:9
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