Convective chimneys in the Greenland Sea: A review of recent observations. The role of dimethylsulphoxide in the marine biogeochemical cycle of dimethylsuphide. The essential role of exopolymers (EPS) in aquatic systems. Marine microbial thiotrophic ectosymbioses. The marine insect Halobates (Heteroptera: Gerridae)-biology, adaptations, distribution and phylogeny. The ecology of rafting in the marine environment. I. The floating substrata. Spawning aggregations of coral reef fishes: Characteristics, hypotheses, threats, and management. Impacts of human activities on marine animal life in the Benguela-A historical overview.