IMIS

The composition of the zooplankton community in a macrotidal, tropical estuarine system (Darwin Harbour, Northern Territory, Australia) was studied over a 2 year period. In all, 32 copepod species were recorded, with small euryhaline marine copepod species such as Parvocalanus crassirostris, Bestiolina similis and Oithona aruensis dominating the zooplankton. Plankton abundances ranged between 30,000 and 110,000 m-3, and there were significant year, season and site differences. Environmental variables were correlated with salinity, which had the strongest influence on community structure. There was a significant drop in species richness from harbour to river sites. To describe biodiversity and determine the environmental factors that have the greatest impact on community structure. Samantha Talbot (Duggan) Credit Northern Territory Department of Natural Resources, Environment and The Arts (NRETA) Status completed: production of the data has been completed. Total Distribution Records: 550 Total Number of Taxa: 35 species, 19 genera