Zooplankton of Wellington Harbour, New Zealand
[introduction]
This section includes the larger number of species. Their planktonic existence is a phase of their life history and is therefore seasonal. Included in the temporary plankton are Salpidae and Ctenophora of which adult and juvenile forms are present for only part of the year, medusae of Hydrozoa, eggs and larvae of fish and larval Crustacea.