sea pens

when it is touched 

a sea pen 

SEA  PENS 
description 

-sea pens are named after their feather like appearance. sea pens are a colonial animals with multiple polyps . Each with eight tentacles . Sea pens  vary in colour from white to creamy yellow.

kingdom 
-animals 

plylum 
-cnidara 

Life span 
- Seapens have a life spam of up to 15 years 

Diet 
-Seapens feeds on small zooplankton organisms 

Interesting facts 


1)  When they are touched or provoked they actually glow , giving off a bright light . This is also known as bioluminsceues 
2)  Seapens are able to change their loacation . They usually change their location to move themselves in the direction of the current flow in order to ensure a steady source of plankton( source of food)

Importance in ecosystem 
 - Without the seapens survivial the eco system of the seapens food web will cause an unbalance and affect the entire ecosystem。 

Food Chain
planktons ->sea pens ->Sea stars -> sea turtle -> sharks 

Habitat
- They live in very fine sendiments (muddy sand to fine sand) and are usually found in sheltered inshore waters or deep water inshore. From a dept of 12-400m 

sea pens along the current flow