MOON SNAILS : LUNATIA HEROS

MARCUS & KARA DOANE

Mollusk

Gastropod

Habitat

Benthic Dwellers

Sandy bottom beaches

Have been found from 0 m up to 435 m

DIET & FEEDING • Moon Snails are carnivorous mollusks who feed on

clams, oysters and even smaller specimen of its own species

• Moon snails use their foot to envelop their prey entirely • Once encased in the moon snails foot, the moon snail

extends its radula and begins drilling a hole into the shell of its prey. Simultaneously it excretes an enzyme which softens the shell.

• Once the radula has broken through the shell the moon snail secrets an enzyme which paralyzes the prey and allows the moon snail to suck it’s prey from the shell

REPRODUCTION• Moon snails reproduce sexually• Female moon snails hold the fertilized eggs inside

the protection of her shell until she burrows into the sand to build a sand collar

• A sand collar is a hardened protective capsule made of sand and mucus secreted by the mother. The eggs are attached to the underside of the collar. Once complete the mother leaves the sand collar

REPRODUCTION

• Moon snail larvae stay in sand collar until they have developed into veliger larvae

• Veliger larvae leave the sand collar and become plankton dwellers to begin feeding on phytoplankton for about 4-5 weeks

• During those weeks they develop a shell and begin finding a place to settle and begin life as an adult

• Average life span in 2-7 years

PREDATORS / HUMAN IMPACTS

• Gulls are their only natural predator• Larger species are sold as food in Asian markets

as well as in Norway• Pollution in the water has decreased quality and

quantity of food sources• Over collection of live shells as well as empty

shells which are later inhabited by hermit crabs

CITATION • http://home.gwi.net/~allwet1/moonsnails.html

( predators)

• http://scholarworks.umass.edu/dissertations/AAI9120880/ (scientific paper)

• http://eol.org/pages/404284/details#molecular_biology_and_genetics (facts)

• “Underwater World” By: Giorgio Gabbi