1. Distribution and seasonal abundance of benthic macroinvertebrates in a subtropical Florida lake

   • Bruce C. Cowell
   • Darrell S. Vodopich

   OriginalPaper 01 March 1981 Pages: 97 - 105

2. How do macrophytes growing in or close to water reduce their consumption by aquatic herbivores?

   • C. Otto
   • B. S. Svensson

   OriginalPaper 01 March 1981 Pages: 107 - 112

3. The freeliving freshwater cyclopoid copepoda (crustacea) of Malaysia and Singapore

   • C. H. Fernando
   • J. E. Ponyi

   OriginalPaper 01 March 1981 Pages: 113 - 123

4. Aluminum sulfate treatment: Short-term effect on complex phosphorus compounds in a eutrophic lake

   • David A. Francko
   • Robert T. Heath

   OriginalPaper 01 March 1981 Pages: 125 - 128

5. Malformations in some polychaete annelids from Kuwait, Arabian Gulf

   • Murad-B. M. Mohammad

   OriginalPaper 01 March 1981 Pages: 129 - 131

6. Macroinvertebrate colonization of replacement substrate below a hypolimnial release reservoir

   • Gerald L. Boles

   OriginalPaper 01 March 1981 Pages: 133 - 146

7. Midges (Diptera: Chironomidae) from the upper reaches of a spate river

   • A. Brennan
   • A. T. Walentowicz
   • A. J. McLachlan

   OriginalPaper 01 March 1981 Pages: 147 - 151

8. Biomechanical aspects of underwater acoustics with a special reference to hydrobiology

   • Sasadhar DE

   OriginalPaper 01 March 1981 Pages: 153 - 156

9. Induced sex reversal in Tilapia nilotica (Cichlidae) with methyl testosterone

   • Mark Owusu-Frimpong
   • Baldev Nijjhar

   OriginalPaper 01 March 1981 Pages: 157 - 160

10. Some limnological observations of a temporary West Coast pan in Southern Africa: Rocher Pan

    • A. Coetzer

    OriginalPaper 01 March 1981 Pages: 161 - 167

11. Drift of stream invertebrates below a cave source

    • Thomas F. Waters

    OriginalPaper 01 March 1981 Pages: 169 - 175

12. Rate of acclimation of the tropical salt-marsh fish Cyprinodon dearborni to temperature changes

    • K. S. Chung

    OriginalPaper 01 March 1981 Pages: 177 - 181

13. An assessment of biological interactions in an epilithic stream community using time-lapse cinematography

    • Michael J. Wiley
    • Steven L. Kohler

    OriginalPaper 01 March 1981 Pages: 183 - 188

14. Libri novi

    BookReview 01 March 1981 Pages: 189 - 190