1. Between-year variation of periphyton community structure in two Appalachian headwater streams

   • Michael B. Griffith
   • Sue A. Perry

   OriginalPaper Pages: 1 - 9

2. Lake optics and depth limits for photogenesis and photosynthesis in charophyte meadows

   • R. G. Stross
   • R. C. Sokol
   • C. Howard-Williams

   OriginalPaper Pages: 11 - 19

3. Genetic variability and interpopulational differentiation of Artemia strains from South America

   • Gonzalo Gajardo
   • Moises da Conceicao
   • John A. Beardmore

   OriginalPaper Pages: 21 - 29

4. Stream periphyton response to grazing and changes in phosphorus concentration

   • Sharon P. Walton
   • Eugene B. Welch
   • Richard R. Horner

   OriginalPaper Pages: 31 - 46

5. Food consumption by fish populations in the Warta River, Poland, before and after impoundment

   • T. Penczak

   OriginalPaper Pages: 47 - 61

6. An experimental assessment of the temperature responses of two sympatric seagrasses, Amphibolis antarctica and Amphibolis griffithii, in relation to their biogeography

   • D. I. Walker
   • M. L. Cambridge

   OriginalPaper Pages: 63 - 70

7. HPLC analysis of chlorophyll a breakdown products to interpret microalgae dynamics in a shallow bay

   • B. Le Rouzic
   • G. Bertru
   • L. Brient

   OriginalPaper Pages: 71 - 80

8. ³²Phosphorus transfer in systems of fish and amphipods exploiting detritus particles

   • M. Letizia Costantini
   • Loreto Rossi

   OriginalPaper Pages: 81 - 87