1. Grouping plankton samples by numerical analysis

   • Sharon -D. Brown

   OriginalPaper 01 July 1969 Pages: 289 - 301

2. Contribution to knowledge of the biology of Alestes macrophthalmus gunther (Pisces: Characidae)

   • A. P. Bowmaker

   OriginalPaper 01 July 1969 Pages: 302 - 341

3. The effect of temperature on growth, longevity and egg production in Chirocephalus diaphanus prévost (Crustacea: Anostraca)

   • P. S. Lake

   OriginalPaper 01 July 1969 Pages: 342 - 351

4. An ecological study of the algae of the River Moosi, Hyderabad (India) with special reference to water pollution

   • V. Venkateswarlu

   OriginalPaper 01 July 1969 Pages: 352 - 363

5. Etude expérimentale du comportement in situ d'une population diatomique maintenue en enceinte dialysante

   • Jean-François Pierre

   OriginalPaper 01 July 1969 Pages: 364 - 368

6. The development and distribution of plankton in the northern part of the White Nile

   • Y. B. Abu Gideiri

   OriginalPaper 01 July 1969 Pages: 369 - 378

7. On carotenoids in the carapace of crayfish (Astacus astacus L.) (Crustacea: Decapoda)

   • Bazyli Czeczuga
   • Romuald Czerpak

   OriginalPaper 01 July 1969 Pages: 379 - 384

8. Etude floristique et écologique de la florule algale de deux biotopes dans la vallée de la Dyle

   • A. Louis
   • G. Aelvoet

   OriginalPaper 01 July 1969 Pages: 385 - 494

9. Seasonal changes in the biochemical composition of the freshwater cat-fish, Wallagonia attu (Bloch.)

   • A. K. Jafri

   OriginalPaper 01 July 1969 Pages: 497 - 506

10. Regional meeting of hydrobiologists of tropical Africa

    • T. Petr

    OriginalPaper 01 July 1969 Pages: 507 - 512

11. Oxygen consumption in Tilapia nilotica (L.)

    • Nasr el Dien Ahmed
    • A. M. Abdel Magid

    OriginalPaper 01 July 1969 Pages: 513 - 522

12. A limnological comparison of two small Idaho reservoirs

    • Gary W. Miller
    • Fred W. Rabe

    OriginalPaper 01 July 1969 Pages: 523 - 546

13. Alonella and Dunhevedia (Chydoridae, Cladocera): Morphology of trunk limbs

    • N. N. Smirnov

    OriginalPaper 01 July 1969 Pages: 547 - 560

14. Comparative benthic plant ecology by SCUBA-monitored quadrats

    • R. D. Wood
    • Paul E. Hargraves

    OriginalPaper 01 July 1969 Pages: 561 - 586

15. Phytoplankton associations in two pools and their relationships with associated benthic flora

    • Brian Moss
    • A. G. Abdel Karim

    OriginalPaper 01 July 1969 Pages: 587 - 600