Codium fragile

Paula Lightfoot Are these Placida dendritica? Taken yesterday at Grandes Rocques on the west coast of Guernsey.

Paula Lightfoot Actually this was taken on today's dive - I'm getting my days mixed up!

Kate Lock wow that is what I call serious camouflage!

Cynthia D. Trowbridge Yes, these are specimens of Placida dendritica :-)

Cynthia D. Trowbridge Beautiful photograph as well

Rudolf Svensen Lucky you. I have been searching for those but with no luck so far. Nice photo.

Pippa Swannell Great pic. Is the algae Codium fragile? I see Elysia viridis all the time on Codium in Devon but could I find this beauty if I look harder?

Erling Svensen They are quite common in Stavanger where Rudolf live.... ;-)

Rudolf Svensen Never seen them and I have been looking for a long time, but one day I'll find them.

Fabrizio Frixa Codium fragile Candelabra green Cyclops Islands Marine Protected Area Acitrezza fraz. Acicastello (CT) Depth 12m

Fabrizio Frixa Codium fragile Candelabra green Cyclops Islands Marine Protected Area Acitrezza fraz. Acicastello (CT) Depth 12m

Annie Bodar c'est splendide merci

Galina Maslova Nice pic

Antonio Colacino Great and unusual shot :)

Stuart Pearce Very nice shot :)

Tom Hobock Great Effect Good composition :-)

René Weterings OLYMPUS DIGITAL CAMERA Rene Weterings

Cynthia D. Trowbridge On red algae or green? Looks like red in the photo... this species eats algae from at least 7 genera, native and introduced, green and red.

René Weterings I think both. But what we do see here is that a lot of specimen are almost yellow and don't have that distinctive green color from which we know them. What causes that?

Cynthia D. Trowbridge When I raised them through their life cycle (in Scotland), the new juveniles were yellowish (with some blackish pigmentation) until they fed. Therefore, I presume that your animals are starving (no more fresh food and retained chloroplasts breaking down). Although the species eats many algal species and genera, individual slugs do not readily switch....so perhaps like Placida dendritica in Oregon, individuals of E. viridis could starve to death with food that sympatric conspecifics consume.

Floris Bennema It's funny they were there in big masses at the start of November, a prolonged explosion? All of them were green and some of them seemed to be too sluggish to be healty. From what we saw feeding on Codium fragile, their staple food.