1. Population ecology of Ephydra cinerea Jones (Diptera: Ephydridae), the only benthic metazoan of the Great Salt Lake, U.S.A.

   • N. Collins

   OriginalPaper 01 January 1980 Pages: 99 - 112

2. Effects of density on food utilization and surfacing behaviour in the obligatory air-breathing fish Channa striatus

   • K. Sampath
   • T. J. Pandian

   OriginalPaper 01 January 1980 Pages: 113 - 117

3. Cationic responses of organs and haemolymph of Biomphalaria pfeifferi (Krauss), Biomphalaria glabrata (Say) and Helisoma trivolvis (Say) (Gastropoda: Planorbirdae) to cationic alterations of the medium

   • W. K. Nduku
   • A. D. Harrison

   OriginalPaper 01 January 1980 Pages: 119 - 138

4. Water relations and osmotic pressure in Biomphalaria pfeifferi (Krauss), Biomphalaria glabrata (Say) and Helisoma trivolvis (Say) (Gastropoda : Planorbidae) in response to cationic alterations of the medium

   • W. K. Nduku
   • A. D. Harrison

   OriginalPaper 01 January 1980 Pages: 139 - 144

5. Zooplankton abundance and diversity in Central Florida grass carp ponds

   • Douglas L. Fry
   • John A. Osborne

   OriginalPaper 01 January 1980 Pages: 145 - 155

6. The effects of a new reservoir on the attached diatom communities in Huntington Creek, Utah, U.S.A.

   • Lanty E. Ross
   • Samuel R. Rushforth

   OriginalPaper 01 January 1980 Pages: 157 - 165

7. Contribution a l'etude limnologique du lac pavin (France) I: Facteurs abiotiques et phytoplancton

   • J. Devaux

   OriginalPaper 01 January 1980 Pages: 167 - 189

8. Libri novi

   BookReview 01 January 1980 Pages: 191 - 192