Ecological Archives A018-078-A1

Collin A. Eagles-Smith, Thomas H. Suchanek, Arthur E. Colwell, and Norman L. Anderson. 2008. Mercury trophic transfer in a eutrophic lake: the importance of habitat-specific foraging. Ecological Applications 18:A196–A212.

Appendix A. Habitat-specific designations for fish prey items.

TABLE A1. Habitat-specific designations for fish prey items. Parenthetical values are assigned trophic positions1 for each category.

Pelagic

   

Littoral

   

Profundal

   

Miscellaneous

   
   
   

Daphniidae

 

Copepoda

   

Amphipoda

 

Hemiptera

   

Diptera

   

Terrestrial (2.2)

Ceriodaphnia (2)

 

Cyclops (2.2)

   

Hyallela (2.3)

 

Corixidae (2.2)

   

Chironomidae (2.2)

     

Daphnia (2)

 

Diacyclops (2)

       

Naucoridae (3)

         

Detritus (1.3)

Simocephalus (2)

 

Diaptomus (2)

   

Aquatic macrophytes (1)

 

Gerridae (3)

   

Ostracoda

     

Scapholeberis (2)

 

Unidentified nauplii (2)

       

Veliidae (3)

   

Candoniidae 2.2)

   

Unidentified (1.5)

         

Ephemeroptera (2)

       

Cyprididae (2.2)

     

Rotifera

 

Chydoridae

   

Caenidae (2)

 

Diptera

           

Epiphanes (2)

 

Chydorus (2)

   

Baetidae (2)

 

Ephydridae (2)

           

Keratella (2)

 

Eurycercus (2)

       

Stratiomyidae (2)

   

Annelida

     
   

Leydigia (2)

   

Coleoptera (2.5)

       

Oligochaeta (2.1)

     

Diptera

       

Hydrophilidae (2.3)

 

Gastropoda

   

Euhirudinae (3)

     

Chaoborus (3)

 

Primary producers

       

Physidae (2.4)

           
   

Closterium (1)

   

Trichoptera (2.3)

       

Copepoda

     

Bosminidae

 

Volvox (1)

   

Hydropsychidae (2.3)

 

Hydrachnida

   

Harpacticoida (2)

     

Bosmina (2)

 

Cyanophyta (1)

   

Hydroptilidae (2.3)

 

Hydrachnidae (3)

           
   

Chlorophyta (1)

   

Leptoceridae 2.3)

               

Haplopoda

 

Misc. diatom (1)

       

Decapoda

           

Leptodora (3)

 

Gleotrichia (1)

   

Odonata (3)

 

Procambarus (2.5)

           
   

Stephandiscus (1)

   

Anisoptera (3)

               
         

Coenagrionidae (3)

               
         

Enallagma sp (3)

               

1Trophic positions were assigned based on reviews and life-history descriptions in Merritt and Cummins (1996) and Thorp and Covitch (2001).

LITERATURE CITED

Merritt, R. W., and K. W. Cummins. 1996. An Introduction to the Aquatic Insects of North America . Third Edition. Kendall/Hunt, Dubuque , Iowa , USA

Thorp, J. H., and A. P. Covich. 2001. Ecology and Classification of North American Freshwater Invertebrates. Academic Press, New York, New York, USA.

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