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Northern Rock Barnacle - Semibalanus balanoides Barnacles are sessile filter feeders. The use feathery, thoracic appendages, called cirri, to capture plankton and detritus from the water column. <br />
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When there is a current, the barnacles hold their cirri stiffly into the flow. But, when there is no current, the barnacles pulse their cirri rhythmically, in and out of their shell. Their cirri are also used as gills to extract oxygen from the water.<br />
<br />
Habitat: Encrusted on rocks and starting to feed again as the tide was starting to come back in.<br />
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<figure class="photo"><a href="https://www.jungledragon.com/image/89955/northern_rock_barnacle_-_semibalanus_balanoides.html" title="Northern Rock Barnacle - Semibalanus balanoides"><img src="https://s3.amazonaws.com/media.jungledragon.com/images/3232/89955_thumb.jpg?AWSAccessKeyId=05GMT0V3GWVNE7GGM1R2&Expires=1678320010&Signature=6Kzsit0w8eIJXoMRDY32X5AULgI%3D" width="200" height="134" alt="Northern Rock Barnacle - Semibalanus balanoides Barnacles are sessile filter feeders. The use feathery, thoracic appendages, called cirri, to capture plankton and detritus from the water column. <br />
<br />
When there is a current, the barnacles hold their cirri stiffly into the flow. But, when there is no current, the barnacles pulse their cirri rhythmically, in and out of their shell. Their cirri are also used as gills to extract oxygen from the water.<br />
<br />
Habitat: Encrusted on rocks and starting to feed again as the tide was starting to come back in<br />
https://www.jungledragon.com/image/89952/northern_rock_barnacle_-_semibalanus_balanoides.html<br />
<br />
https://vimeo.com/391816393 Geotagged,Semibalanus balanoides,Spring,United States,barnacles" /></a></figure><br />
<section class="video"><iframe width="448" height="252" src="https://player.vimeo.com/video/391816393?title=0&byline=0&portrait=0" frameborder="0"></iframe></section> Geotagged,Semibalanus balanoides,Spring,United States,barnacle,barnacle cirri,northern rock barnacle Click/tap to enlarge Promoted

Northern Rock Barnacle - Semibalanus balanoides

Barnacles are sessile filter feeders. The use feathery, thoracic appendages, called cirri, to capture plankton and detritus from the water column.

When there is a current, the barnacles hold their cirri stiffly into the flow. But, when there is no current, the barnacles pulse their cirri rhythmically, in and out of their shell. Their cirri are also used as gills to extract oxygen from the water.

Habitat: Encrusted on rocks and starting to feed again as the tide was starting to come back in.

Northern Rock Barnacle - Semibalanus balanoides Barnacles are sessile filter feeders. The use feathery, thoracic appendages, called cirri, to capture plankton and detritus from the water column. <br />
<br />
When there is a current, the barnacles hold their cirri stiffly into the flow. But, when there is no current, the barnacles pulse their cirri rhythmically, in and out of their shell. Their cirri are also used as gills to extract oxygen from the water.<br />
<br />
Habitat: Encrusted on rocks and starting to feed again as the tide was starting to come back in<br />
https://www.jungledragon.com/image/89952/northern_rock_barnacle_-_semibalanus_balanoides.html<br />
<br />
https://vimeo.com/391816393 Geotagged,Semibalanus balanoides,Spring,United States,barnacles

    comments (4)

  1. Omg yes! How awesome that you managed to capture this in both a photo and a video. I was totally ignorant about barnacles and this is the first time I'm seeing this at all. Fascinating! Posted 2 years ago
    1. I'm glad you enjoyed it! They are fun to watch. But, the video was a bit too shaky because I was standing in the frigid water, shivering, yet trying to persevere ;). Posted 2 years ago
      1. You did well! Posted 2 years ago
        1. Thanks :) Posted 2 years ago

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''Semibalanus balanoides'' is a common and widespread boreo-arctic species of acorn barnacle. It is common on rocks and other substrates in the intertidal zone of north-western Europe and both coasts of North America.

Species identified by Christine Young
View Christine Young's profile

By Christine Young

All rights reserved
Uploaded Feb 16, 2020. Captured Jun 18, 2019 08:30 in 1563 Post Rd, Wells, ME 04090, USA.
  • Canon EOS 80D
  • f/13.0
  • 1/256s
  • ISO400
  • 100mm