Pelagic food webs and eutrophication of coastal waters: Impact of grazers on algal communities

被引：58
|
作者：
Ingrid, G
Andersen, T
Vadstein, O
机构：
[1] UNIV OSLO, SECT MARINE BOT, N-0316 BLINDERN, OSLO, NORWAY
[2] UNIV OSLO, MARINE ZOOL & CHEM SECT, N-0316 BLINDERN, OSLO, NORWAY
[3] NORWEGIAN UNIV SCI & TECHNOL, TRONDHEIM BIOL STN, N-7018 TRONDHEIM, NORWAY
来源：
MARINE POLLUTION BULLETIN | 1996年 / 33卷 / 1-6期
关键词：
eutrophication; nutrients; food webs; copepods; ciliates; top-down control;
D O I：
10.1016/S0025-326X(96)00134-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This review considers theoretical and empirical aspects of the role of grazers in the pelagic food web. We discuss how grazers may affect eutrophication development in coastal waters both through the direct effects of differential prey selectivity on the composition of the algal community, and through the indirect effects of nutrient sequestration and regeneration on the pelagic nutrient regime. We identify dominance of oligotrich ciliates or calanoid copepods on the primary herbivore level as two major food web configurations with different overall impacts on both algal communities and pelagic nutrient retention. Literature data on numerical and functional responses are compiled to make a quantitative assessment of competitive and predatory interactions between ciliates and copepods. (C) 1997 Elsevier Science Ltd.
引用
收藏
页码：22 / 35
页数：14
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