8 
As will be pointed out later, the reason so few mussels were obtained in the 
beds over 4.5 cm. in length was that the beds were composed of young individuals 
since, as will appear, mussels frequently grow larger in that region. 
Description of the Mussel Beds of St. Andrews Region in 1918. 
In 1918, in the St. Andrews region, it was found that the sea-mussel instead 
of occurring in isolated patches about Passamaquoddy Bay now regularly formed 
part of the fauna of its littoral zone. The large beds were located as previously 
and were in a thriving condition. The mussel had extended up the St. Croix 
River also as far as Oak Bay. On the ledges about Dochet Island and along its 
rocky shores the mussels were abundant, forming a bed of considerable size. 
The mussels (as observed from a launch) appeared to be of the usual size and 
type found in the beds of St. Andrews. (Owing to the United States war regula- 
tions ve lighthouse property a sample was not obtained.) 
A trip to L’Etang revealed that the mussels were common there and in 
Black Harbour, but no large beds were found. 
500 
400 
Fig. I.—Frequency Curve of Mussels of various sizes in St. Andrews Region, 1917. 
22 
