ih566's picture

Long grey tubes

Observed: 25th October 2012 By: ih566
2012-10-25 12.55.21-1

This was on the underside of a blue plastic barrel used as a yacht racing mark in Strangford Lough. Any idea what the long grey tubes are? I didn't notice them at the time and so didn't check them out - it's always possible that they're bungees!

Species interactions

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gramandy's picture

not sure what...

...these are but one of them has a bryozoan sea mat on it.

scubamann's picture

grey tubes

I wondered if they might be old Forest Kelp/Cuvie (Laminaria hyperborea) stipes, which are a long cylindrical shape, that have lost there fronds and partly decomposed. There is no sign of the holdfast but that may be just out of shot.

dejayM's picture

Just may be

There are a number of species but all have a shelled crustacean at the summit (missing here). These are stalked barnacles and can reach over 4 inches in length. If I am right then this is the edible part, though the ones in the picture are probaly pretty rank.
Interestingly there is a single Record (NBN) of Pollicipes polymerus here (NI) https://data.nbn.org.uk/Taxa/NHMSYS0021052672 - another in Cornwall
See http://luckypeach.com/recipes/barnacles-in-the-basket/
and https://www.frenf.it/earlyadopters/p/fabz/732425
If you are still 'here' ih566 then please add the descriptive Tag Marine and, parhaps change the Habitat tag to Marine.