o Vibrant dark green sea vegetable
o Common in temperate and colder salt water
o Ranges in size from 6-12 feet
· Blue Mussel-
o Found on rocky shores, most often in bays and estuaries
o Anchor to hard surfaces
Feeds on “phytoplankton
o
o Important water quality indicators in Boston Harbor due to the fact that they are filter feeders
§ Filter particles out of water
§ Suspension feeders
o MWRA (Massachusetts Water Resources Authority)
§ Tests mussels for PAHs (polyaromatic hydrocarbons)
· Tests show a decrease in harmful chemicals
· Tunicates (Sea Squirt) (RED, WHITE, GREEN)
o Colonial tunicate consisting of zooids
o Also feeds on phytoplankton
o Also feed on zooplankton, oyster and mussel larvae
o Similar to mussel discharges filtered water
o Unlike mussel, the discharge occurs into a common area used by zooids in cluster and filtered out of a pore
o All zooids within a colony are the same color
o Colonies can have up to 20 zooids
o Broods larvae internally, fertilization of eggs occurs from males in nearby colonies
· Lacy Crust Bryozoan
o First identified on east coast in Isles of Shoals, Maine in 1987
o Spread through ballast water and ocean currents
o Zooids that are box like structures that sit next to each other
o The entire colony looks “circular and white”
· Atlantic Lobster
o Live in water of less than 50 meters
o Young lobsters do not migrate to open water
o Usually olive green or dark brown
· Atlantic Rock Crab
o Trapped in lobster pots
o Rock, sand or gravel bottom dwellers
o Estuaries or shallow shores
o Front border rounded
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