1. Analysis of egg protein in five carps

   • S. K. Mukhopadhyay
   • C. R. Sahoo
   • A. K. Bose

   OriginalPaper 01 February 1981 Pages: 97 - 102

2. Movement of immature aquatic insects in a lotic habitat

   • G. A. Bird
   • H. B. N. Hynes

   OriginalPaper 01 February 1981 Pages: 103 - 112

3. Decomposition and colonisation by invertebrates of native and exotic leaf material in a small stream in New England (Australia)

   • R. W. J. Pidgeon
   • S. C. Cairns

   OriginalPaper 01 February 1981 Pages: 113 - 127

4. Downstream movement of juvenile brown trout, Salmo trutta, L. in the tributaries of Loch Leven, Kinross, Scotland

   • G. A. O. Arawomo

   OriginalPaper 01 February 1981 Pages: 129 - 131

5. Salinity tolerance and osmoregulation in the freshwater crab, Barytelphusa guerini (Milne Edwards)

   • S. A. T. Venkatachari
   • N. Vasantha

   OriginalPaper 01 February 1981 Pages: 133 - 138

6. Ameboflagellate transformation I. Possible initiation of the ameba-to-flagellate transformation of Naegleria gruberi (NB-1) by divalent cation influx

   • Donald L. Perkins

   OriginalPaper 01 February 1981 Pages: 139 - 143

7. Description of a new species of the genus Hungarocypris Vavra, 1906 (Crustacea : Ostracoda) from Sulawesi, Indonesia, with a discussion on the distribution of the genus

   • Reginald Victor
   • C. H. Fernando

   OriginalPaper 01 February 1981 Pages: 145 - 154

8. The toxicity of 2,4-D to Cyprinus carpio var. Communis in relation to the seasonal variation in the temperature

   • H. K. Vardia
   • V. S. Durve

   OriginalPaper 01 February 1981 Pages: 155 - 159

9. The influence of substrate organic content on the growth of a stream chironomid

   • Rosanna L. Mattingly
   • Kenneth W. Cummins
   • Robert H. King

   OriginalPaper 01 February 1981 Pages: 161 - 165

10. Algal polymorphism in high rate wastewater treatment ponds

    • Gideon Oron
    • Gedaliah Shelef
    • Anna Levi

    OriginalPaper 01 February 1981 Pages: 167 - 175

11. Some analyses of aquatic plants and their waters

    • K. G. Allenby

    OriginalPaper 01 February 1981 Pages: 177 - 189

12. Libri novi

    • R. D. Gulati

    BookReview 01 February 1981 Pages: 191 - 192