Northern red-legged frog (Rana aurora), Island Center Forest, Tim DiChiara Dungeness crab (Metacarcinus magister), Sylvan beach, Tim DiChiara Acorn barnacles (Balanus glandula), Maury Island, Tim DiChiara Honey bee (Apis mellifera), Maury Island, Tim DiChiara Bald eagle (Haliaeetus leucocephalus), Point Robinson, Elizabeth VanDeventer Shield-backed kelp crab (Pugettia productus), Raab's Lagoon, Tim DiChiara Wooly bear caterpillar (Pyrrharctia isabella), Maury Island, Tim DiChiara Sundew (Drosera Rotundifolia), Whispering Firs Bog, Tim DiChiara Long-toed salamander (Ambystoma macrodactylum), Neill Point Preserve, Tim DiChiara

Featured photo Giant Pacific Oyster
Species details
Common name: Giant Pacific Oyster
Scientific name: Crassostrea gigas
Other names: Pacific oyster, Japanese oyster, Miyagi oyster
Family: Ostreidae
Origin: Exotic
Status on Vashon: Common
Description:

This large introduced oyster orginally came from the Pacific coast of Asia but is now crowding out Vashon's native oysters (such as the Olympia oyster). It is an estuarine species, but can also be found in intertidal and subtidal zones down to 40 meters deep.

Similar to other oyster species, once a Pacific oyster larva finds a suitable habitat, it attaches to it permanently using cement secreted from a gland in its foot. After settlement, the larva metamorphoses into a juvenile. The growth rate is very rapid in optimum environmental conditions, and market size can be achieved in 18 to 30 months. Unharvested Pacific oysters can live up to 30 years.

It originated from Japan, where it has been cultured for hundreds of years. It is now the most widely farmed and commercially important oyster in the world, as it is very easy to grow, environmentally tolerant and is easily spread from one area to another. Predators include several crab species and sea stars.

--Wikipedia

More details: Encyclopedia of Life Wikipedia
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