Effects of Fish in River Food Webs

@article{Power1990EffectsOF,
  title={Effects of Fish in River Food Webs},
  author={Mary E. Power},
  journal={Science},
  year={1990},
  volume={250},
  pages={811 - 814}
}
  • M. Power
  • Published 9 November 1990
  • Environmental Science
  • Science
Experimental manipulations of fish in a Northern California river during summer base flow reveal that they have large effects on predators, herbivores, and plants in river food webs. California roach and juvenile steelhead consume predatory insects and fish fry, which feed on algivorous chironomid larvae. In the presence of fish, filamentous green algae are reduced to low, prostrate webs, infested with chironomids. When the absence of large fish releases smaller predators that suppress… 

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