51 Patella pellucida. Growth Stages 3s & 4s (juvenile and early adults on stipe). April 2015. Sublittoral. Egersund, S. Norway. © E. Svensen.

In Norway, stipe feeding is almost always on the top 10cm near the base of the frond (1). Often, as in this image, the pits coalesce. It is likely that juveniles take advantage of pits created by adults. Pits frequently lead to the loss of the fronds.

Concise
Part 1, SHELL FORMS: 02 Patella pellucida. Growth Stage 2 (GS2). July 2012. Littoral. North Yorkshire, England. © P. Lightfoot.
Part 2, BODY & ANATOMY: 03 Patella pellucida. Growth Stage 3 (GS3). 2009. Sublittoral, Farne Islands, Northumberland, England. © P.Lightfoot.
Part, 3 HABITS & ECOLOGY: 04 Patella pellucida. Length 4.6mm. Growth Stage 3 (GS3). September 2016. Yorkshire, England. © P.Lightfoot.

Imprint

Photographic guide to the identification and biology of European marine invertebrates

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