| The zooplankton community of the brackish part of the Westerschelde estuary (November 1989-October 1990) was dominated by two calanoid copepods, <i>Eurytemora affinis</i> and <i>Acartia tonsa</i>. <i>Eurytemora</i> was present during a longer period of the year and was much more important in terms of total abundances and biomasses than <i>Acartia</i>. The secondary production of these species was estimated by means of the growth rate method, using weight-specific growth rates obtained from laboratory cultures (<i>Eurytemora</i>) or from the literature (<i>Acartia</i>). Due to the substantially higher growth rates of <i>Acartia</i> compared to <i>Eurytemora</i>,... |
