From Rachel Harmer:
High numbers of Doliolids have been recently observed at L4, which are common pelagic tunicates in subtropical coastal waters, and are generally rare in the western English Channel. These were abundant throughout September. Total zooplankton numbers dropped considerably at the beginning of May almost to winter background levels, since then numbers have gone up and down until we saw a peak in total zooplankton at the end of August due to high numbers of juvenile Calanus and other smaller copepod species.
Posted by: Tim Smyth