Abstract
The design and construction of a closed system circulating sea-water tidal estuarine sediment microcosm is described. The microcosm was used to culture mixed species populations of the Harpacticoida (Crustacea: Copepoda) and the evolution of the community and the successional changes are detailed. The communities that developed in each of four replicate microcosms were statistically indistinguishable with respect to the species richness, the numbers of individuals recorded, the log series diversity and the dominance diversity statistics. The most abundant species were the same in each microcosm with the same rank. A diverse community was maintained that did not tend to monoculture; however, the successional changes observed were not apparent in the estuarine communities from which the culture sediments was collected. Rather than a functional reorganisation of the community effecting this, gross environmental changes resulting from a decreased depth of sediment matrix are implicated. The success in maintaining a diverse community is attributed to a provision of a number of nutrient sources.
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Communicated by O. Kinne, Hamburg
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Hockin, D.C. Maintenance of a diverse harpacticoid copepod community in microcosm culture. Mar. Biol. 65, 209–214 (1981). https://doi.org/10.1007/BF00397087
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DOI: https://doi.org/10.1007/BF00397087