| Abstract: | The annual fluctuations in the occurrence of 91 taxa which were identified, made the recognition of 4 main seasonal populations possible. Trends were observed, as well as analogies to other patterns of distribution. On an average, more than half of the fauna was displaced from month to month, but the variation in the density of subtropical neuston appeared to be less over an annual period than it was during the day, and from region to region. The dominance of certain species and occurrence of neuston throughout the year demonstrated, that regionally at least a biocoenosis exists continously at the surface of the sea. |
