author={J. B. Wallace and Richard W. Merritt},
  journal={Annual Review of Entomology},
suspended material (seston), including living organisms and both organic and inorganic detritus. Filter-feeding insects constitute important pathways for energy flow and are very important in the productivity of aquatic environments. Yet, some of these animals epitomize the complex relation­ ship between man and insects since biting adults of certain groups are among man's oldest adversaries. The major objectives of this article are to review the means by which filter-feeding insects obtain… 

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