1. Observations on the crustaceous zooplankton in some freshwater bodies of the sub-antarctic island marion

   • O. B. Kok
   • J. U. Grobbelaar

   OriginalPaper Pages: 3 - 8

2. Effects of planktivorous and benthivorous fish on organisms and water chemistry in eutrophic lakes

   • Gunnar Andersson
   • Hans Berggren
   • Curt Gelin

   OriginalPaper Pages: 9 - 15

3. A simple and cheap hydrometric wing

   • Ivan Tuša

   OriginalPaper Pages: 17 - 21

4. Morphometry, Primary productivity and Energy flow in a Tropical Pond

   • M. A. Haniffa
   • T. J. Pandian

   OriginalPaper Pages: 23 - 48

5. Secondary productivity and energy flow in a tropical pond

   • M. A. Haniffa

   OriginalPaper Pages: 49 - 65

6. Particulate material and midge larvae (Chironomidae: Diptera) in an upland river

   • A. Brennan
   • A. J. McLachlan
   • R. S. Wotton

   OriginalPaper Pages: 67 - 73

7. Habitat selection by juvenile bluegill sunfish, lepomis macrochirus

   • Martha E. Casterlin
   • William W. Reynolds

   OriginalPaper Pages: 75 - 79

8. Sequences of colonization, diversity, biomass, and productivity of macroinvertebrates on artificial substrates in a freshwater canal

   • Ellen C. Cover
   • Richard C. Harrel

   OriginalPaper Pages: 81 - 95