Roundhouse Aquarium






 


Feature Creature

Giant Tube Worm

 

photo from: Dijanna Figueroa, PhD

 

Description: These giant tube worms are also known as Riftia.   They can reach a length of 7ft. 10 in! They can tolerate extremely high levels of hydrogen sulfide. This is a very poisonous gas.

Where they are Found: These tube worms live one mile to several miles deep on the floor of the Pacific ocean next to hydrothermal vents. These vents are cracks in the earth’s surface where heated water rises.

 

Feeding: Rifita have no digestive tract, but the bacteria that live inside of them turns the oxygen, sulfide and other materials into organic molecules that they use to feed.

 

Defense:  Hydrothermal vent crabs love to munch off the tubeworms plumes. They can retreat in their protective  tube if threatened.

 

WOW!! Giant tube worms do not receive any energy from the sun but get their energy from chemicals in the sea water. Not photosynthesis but chemosynthesis.

 

 

Past Feature Creatures:

Echinoderms (spiny skinned animals):

Armored Sand Star

Spiny Brittle Star

Sunflower Star

Arthropods (hard exoskeleton, joints):

Acorn Barnacle

Brine Shrimp

Decorator Crab

Globe Crab

Hermit Crab

Sand Crab

Spider Crab

Spiny Lobster

Mollusks (shell, foot, and mantle):

CA mussel clam

Market Squid

Sea Hare

Two-Spotted Octopus

Cnidarians (stinging cells):

Gorgonian

Moon Jelly

Tube Anemone

White Plume Anemones

Misc Invertebrates:

Orange Puffball Sponge