Size and species diversity of zooplankton communities in fluctuating Mediterranean salt marshes

Brucet, S.; Boix, D.; Lopez Flores, R.; Badosa, A.; Quintana, X.D.

Estuarine Coastal and Shelf Science il; 67(3): 424-432


DOI: 10.1016/j.ecss.2005.11.016
Accession: 023603347

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Differences in size and species diversity were analysed in a zooplankton community of a Mediterranean salt marsh (Emporda wetlands, NE Iberian Peninsula), where the dominance of a single species was frequent. In the permanent salt marsh, species diversity and size diversity had similar patterns along zooplankton succession. In the temporary salt marsh species diversity was high after flooding and diminished once water inputs ceased. As species diversity declined size diversity increased. Eventually, one species of calanoid dominated the zooplankton community. The high size diversity in situations of calanoid dominance was possibly due to the co-occurrence of different developmental stages, each of which have different diets. Size diversity would thus indicate trophic niche segregation among different sizes. The combined use of species and size diversity values allows the identification of the successional phases.