TOP-DOWN CONTROL OF PHYTOPLANKTON IN A SHALLOW HYPERTROPHIC LAKE - LITTLE-MERE (ENGLAND)

被引：40

作者：

CARVALHO, L

机构：

[1] Department of Environmental and Evolutionary Biology, University of Liverpool

来源：

HYDROBIOLOGIA | 1994年 / 275卷

关键词：

SHALLOW; EUTROPHIC; FISH-REDUCTION; ZOOPLANKTON; TOP-DOWN CONTROL; PHYTOPLANKTON;

D O I：

10.1007/BF00026699

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Top-down control of phytoplankton by zooplankton is possible through reductions in density of zooplanktivorous fish. Little Mere is a shallow lake where the effects of sewage effluent caused such a reduction. This allowed the large-bodied cladoceran, Daphnia magna Straus, to develop huge populations, preventing potentially large algal crops from developing. Subsequent diversion of the effluent is anticipated to lead to recovery of the fish community, reduced numbers of large-bodied grazers, and increased phytoplankton biomass. Whether the aquatic plant community, present in Little Mere, is resilient to such changes may depend upon whether cyanophytes are favoured, or not.

引用

页码：53 / 63

页数：11

共 47 条

[1] LIFE-HISTORY PATTERNS IN ZOOPLANKTON [J].