1. Emergence of the midge chironomus tentans when exposed to heavy metal contaminated sediment

   • R. Wentsel
   • A. McIntosh
   • W. P. McCafferty

   OriginalPaper Pages: 195 - 196

2. The food and feeding habits of Eutropius niloticus (Ruppell), family Schilbeidae (Osteichthyes: Siluriformes) in Lake Kainji, Nigeria

   • Akinola A. Olatunde

   OriginalPaper Pages: 197 - 207

3. Dominance of phosphorus over nitrogen as the limiter to phytoplankton growth rate

   • E. B. Welch
   • P. Sturtevant
   • M. A. Perkins

   OriginalPaper Pages: 209 - 215

4. Standing crops of chironomidae and tubificidae in two desert reservoirs, Central Arizona

   • John N. Rinne

   OriginalPaper Pages: 217 - 224

5. Electronic and utermöhl comparative techniques in quantitative analysis of freshwater particulates

   • J. K. Leslie

   OriginalPaper Pages: 225 - 239

6. Factorial correspondence analysis of oligochaeta communities according to eutrophication level

   • Claude Lang

   OriginalPaper Pages: 241 - 247

7. Population responses of Lake Michigan phytoplankton to nitrogen and phosphorus enrichment

   • Eugene F. Stoermer
   • Barbara G. Ladewski
   • Claire L. Schelske

   OriginalPaper Pages: 249 - 265

8. Trophic status of Iowa Lakes in relation to origin and glacial geology

   • John R. Jones
   • Roger W. Bachmann

   OriginalPaper Pages: 267 - 273

9. Detrital aggregates in some Iowa lakes and reservoirs

   • Daniel E. Canfield Jr.
   • Roger W. Bachmann

   OriginalPaper Pages: 275 - 279

10. Index autorum

    Legacy Pages: ii - ii

11. Contents

    Legacy Pages: iii - iii