HRAP Online Encyclopedia

Bivalves

Bivalves are a class of animals that have two shells attached by a hinge. There are a large number of species of bivalves including mussels, clams, and oysters that live across the world in both fresh and salt water. When exposed during low tide, mussels and clams at Haystack Rock will close to protect themselves and help retain moisture. They might look like a rock, but when the tide come in the shells will open and the animal within will begin filter feeding. The Oregon Coast is home to several popular edible species of bivalve. Haystack Rock is a no collection zone, however with a shellfish permit, visitors can harvest mussels and calms on nearby beaches.

Mussels

Clams