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Three types of Tunicates have colonized this spot.

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This cream colored Didemnum vex is a colonial tunicate, an invasive fouling species which grows very fast. It's mat-forming growth dominates hard marine surfaces now worldwide. It is of serious concern to the shellfisheries.

Here is has covered a warty invasive Club Tunicate.

The attractive encrusting Orange Sheath Tunicates (Botrylloides violaceus) has also covered a Club Tunicate. One can see how competitive these organisms are.

Encrusting Orange Sheath Tunicates (Botrylloides violaceus) and (Didemnum Vexillum) have enveloped a couple of invasive Club Tunicates (Styela clava).
Tunicates are invertebrates in the chordate Phylum because they have a dorsal nerve and notochord in their larval stage of development. Individuals live only a few years, but colonies may persist. This D.vex is a colonial tunicate, an invasive fouling species which grows very fast. It's mat-forming growth dominates hard marine surfaces now worldwide. It is of serious concern to the shell fisheries. They reproduce by budding. Canadians refer to the D. Vex as the pancake batter tunicate.

Filename
Tunicates Three©JMacCausland'05c.tif
Copyright
Janet MacCausland
Image Size
3011x2007 / 9.5MB
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Contained in galleries
Sea Squirts, Tunicates
This cream colored Didemnum vex is a colonial tunicate, an invasive fouling species which grows very fast. It's mat-forming growth dominates hard marine surfaces now worldwide. It is of serious concern to the shellfisheries.<br /> <br /> Here is has covered a warty invasive Club Tunicate. <br /> <br /> The attractive encrusting Orange Sheath Tunicates (Botrylloides violaceus) has also covered a Club Tunicate. One can see how competitive these organisms are.<br /> <br /> Encrusting Orange Sheath Tunicates (Botrylloides violaceus) and (Didemnum Vexillum) have enveloped a couple of invasive Club Tunicates (Styela clava).<br /> Tunicates are invertebrates in the chordate Phylum because they have a dorsal nerve and notochord in their larval stage of development. Individuals live only a few years, but colonies may persist. This D.vex is a colonial tunicate, an invasive fouling species which grows very fast. It's mat-forming growth dominates hard marine surfaces now worldwide. It is of serious concern to the shell fisheries. They reproduce by budding. Canadians refer to the D. Vex as the pancake batter tunicate.
jmmermaid@outlook.com Home Decor & Stock Photography; Nature; On Location Portraiture; Illustration. To Purchase, please contact Janet MacCausland at jmmermaid@outlook.com or call 508 824 1569 or TEXT 617 448 2746. All images are the property of the photographer and require permission to copy. Every new day I see something I have never seen before to share with you. An astute observer, I revel in the light and what it sheds on the images herein, both underwater and above scenery, and the wildlife that lives there.