1. Neurosecretory changes induced by salt loading in the freshwater leech, Poecilobdella viridis (Blanchard)

   • G. K. Kulkarni
   • M. M. Hanumante
   • R. Nagabhushanam

   OriginalPaper 01 January 1979 Pages: 3 - 6

2. Inorganic mineral nutrient level studies on Potamogeton pectinatus L. and Enteromorpha prolifera in Forfar Loch, Scotland

   • Y. B. Ho

   OriginalPaper 01 January 1979 Pages: 7 - 15

3. Farm pond restoration using Chara vulgaris vegetation

   • Shirley A. Crawford

   OriginalPaper 01 January 1979 Pages: 17 - 31

4. The seasonal cycle of the phytoplankton in the coastal waters of Ghana

   • Emelia R. Anang

   OriginalPaper 01 January 1979 Pages: 33 - 45

5. Action de pesticides chez des insectes en fonction de leur etat physiologique: Etude de 2 insecticides et d'un melange d'herbicides chez les larves aquatiques de cloeon. (Ephemeropteres).

   • Jacqueline Seuge
   • Roger Bluzat

   OriginalPaper 01 January 1979 Pages: 47 - 53

6. Notes on the growth and sporulation of a natural population of Aphanizomenon flos-aquae

   • Roger I. Jones

   OriginalPaper 01 January 1979 Pages: 55 - 58

7. A preliminary study on the growth rate of a tropical estuarine snail Neritina violacea (gmelin) (gastropoda : neritacea), under laboratory conditions

   • M. Balaparameswara Rao
   • A. S. Murty

   OriginalPaper 01 January 1979 Pages: 59 - 64

8. The influence of thick floating vegetation (Water hyacinth: Eichhornia crassipes) on the physico — chemical environment of a fresh water wetland

   • D. N. Rai
   • Jayashree Datta Munshi

   OriginalPaper 01 January 1979 Pages: 65 - 69

9. Dissolved glucose in a bayou estuary, possible sources and utilization by bacteria

   • Gerald A. Moshiri
   • William G. Crumpton
   • Nicholas G. Admen

   OriginalPaper 01 January 1979 Pages: 71 - 74

10. Seasonal variation in the populations of moina Macrocopa strauss and Moina micrura kurz (crustacea : cladocera) in zoafaraniyah pools

    • A. N. Khalaf
    • A. F. Shihab

    OriginalPaper 01 January 1979 Pages: 75 - 77

11. Thermoregulatory behavior of brown trout, Salmo trutta

    • William W. Reynolds
    • Martha E. Casterlin

    OriginalPaper 01 January 1979 Pages: 79 - 80

12. Primary production and bacterioplankton in fish ponds with mono and polyculture

    • B. B. Jana

    OriginalPaper 01 January 1979 Pages: 81 - 87

13. A study of the relative efficiency of mustard oil cake and urea and the effect of salinity in plankton production in indian fishponds

    • S. R. Ghosh

    OriginalPaper 01 January 1979 Pages: 89 - 92

14. Libri novi

    BookReview 01 January 1979 Pages: 93 - 96

15. Announcement

    Announcement 01 January 1979 Pages: 96 - 96