Types of Organisms
Sponges, hydroids, oligochaetes,
polychaetes, bryozoans, amphipods,
copepods, shipworms, and ascidians
Mollusks, crustaceans fish, plants, sponges, etc.
But because of the possibility of introductions 500 years ago, it is difficult to determine what is native to the region’s marine waters and what is not.
We refer to these species as cryptogenic.