trudy-russell's picture


Observed: 27th September 2013 By: trudy-russelltrudy-russell’s reputation in Invertebratestrudy-russell’s reputation in Invertebratestrudy-russell’s reputation in Invertebrates

an non-native species common in harbours and marinas spreading out round the country

Species interactions

No interactions present.


dejayM's picture


Poor you Trudy, you have the same problem as me and plenty others..Watersipora subtorquata - the reason why the ID links are not 'up' in the panel. Hardly worth changing, but you should!
is pretty thorough - you'll agree, I have.
After your reply below..
I wonder if you noticed my reference to your spelling Trudy (watersipora)

trudy-russell's picture

Ah yes a complicated group,

Ah yes a complicated group, this particular ID was confirmed at the time by John Bishop as he was running a bryozoan ID course and we did look at the operculum. He said the key id feature vs other species of watersporia is translucent windows next to a shallow sinus in the operculum. I don't know how this fits with the details from your link it is dated 2011 but the most recent reference is 2002. So I don't know if what John told us is a more recent update?

Trudy Russell
Marine Advisor
Natural England

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