Periwinkle Party - Littorina littorea

I always wonder why periwinkles group together like this. Is it safety in numbers? Competition for space on the best rocks? Or, not enough rocks in the intertidal zone, so they are crowded? Things that me me go 'hmm'.

Habitat: Intertidal zone during low tide

comments (6)

Ferdy Christant

Lion

That's an interesting question! Don't have time to research it now so I'll just wait for you to research it, knowing that you probably can't stand it being unanswered ;) Posted 6 years ago
1. Christine Young
  
  Lion
  
  I looked it up, but forgot to write back....They tend to crowd on the rocks when the tide is out. There aren't a ton of rocks in this area, so they clump together on whatever space is available. Plus, they eat algae off the rocks. Posted 6 years ago
2. 1. Ferdy Christant
    
    Lion
    
    Thanks so much for getting back on this :) Posted 6 years ago
  2. 1. Christine Young
      
      Lion
      
      You're welcome! You must have been itching with anticipation ;) Posted 6 years ago
    2. 1. Ferdy Christant
        
        Lion
        
        I did wonder why I felt to stressed lately. Posted 6 years ago
      2. Christine Young
        
        Lion
        
        I'm relieved to have relieved your stress. Posted 6 years ago

The Common periwinkle

The common periwinkle or winkle is a species of small edible whelk or sea snail, a marine gastropod mollusc that has gills and an operculum, and is classified within the family Littorinidae, the periwinkles.

Info 16 0

Similar species: Littorinimorpha

Species identified by Christine Young