Sea Pen
by Eva Lechner
Title
Sea Pen
Artist
Eva Lechner
Medium
Photograph - Photograph-fine Art
Description
As octocorals, sea pens are colonial animals with multiple polyps (which look somewhat like miniature sea anemones), each with eight tentacles. Unlike other octocorals, however, a sea pen's polyps are specialized to specific functions: a single polyp develops into a rigid, erect stalk (the rachis) and loses its tentacles, forming a bulbous "root" or peduncle at its base. The other polyps branch out from this central stalk, forming water intake structures (siphonozooids), feeding structures (autozooids) with nematocysts, and reproductive structures. The entire colony is fortified by calcium carbonate in the form of spicules and a central axial rod.
Original fine art photography by Eva Lechner(taken in Sea Life Center,Seward,Alaska),enhanced with textures
Uploaded
October 8th, 2017
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