1. 1981
2. Studies on the ecology of Littorina Obtusata

   Awdur: Hollingworth, C. E., Medi 1981

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

3. Biosystematic and cytological studies of mosses and liverworts.

   Awdur: Abderrahman, S. M. M., Rhag 1981

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

4. Some aspects of growth and behaviour in the juvenile lobster HOMARUS GAMMARUS (LINNAEUS)

   Awdur: Richards, P. R., Rhag 1981

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

5. 1982
6. The dynamics of small-scale fronts in estuaries.

   Awdur: Nunes, R. A., Mai 1982

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

7. Digestion and the systemic control of appitite in the dab, Limanda limanda (L.)

   Awdur: Fletcher, D. J., Awst 1982

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

8. Distribution, concentration and bonding factors affecting the performance of water repellents applied to wood

   Awdur: Razzaque, M. A., Medi 1982

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

9. The application of new techniques to the study of planktonic organisms.

   Awdur: Yule, A. B., Medi 1982

   Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

10. 1983
11. Ecophysiology of ecotypes : An investigation in the ecophysiology of sand dune ecotypes

    Awdur: Baleela, A. R. H., Ion 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

12. The phytoplankton of the southern ocean: some factors affecting its distribution during the austral summer of 1978/79

    Awdur: Hayes, P. K., Ebr 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth

13. Demography of animal modular colonies.

    Awdur: Cancino, J. M., Meh 1983

    Traethawd ymchwil myfyriwr: Doethur mewn Athroniaeth