- 20 - 

 III, Discuasion 



In viewing the overall conditions ns found in the Pnasomnquoddy 

 srea, it is found that the waters are brought into the area in the 

 upper 25 metres from the north and east and to a certain extent from 

 the Grand Manan Channel, This water after mixing near the mouth of 

 ^assamaquoddy Bay passes out of the area eastward of Grand Manan. Be- 

 couse of the strong tidal mixing and upwelling, the waters near the 

 mouth of Passamaquoddy Bay are denser than the waters further from the 

 shore. This Is a result of the denser waters from the centre of the 

 Bay of Fundy being drawn into the deep channel between Grand Manan 

 and Cpimpobello Island and caught up in the mixing process in this 

 area. With regards to residual movements in Grand Manan Channel, 

 these seem to be very slight if at all, and v/hat movements there are 

 appear to be directed northward, at the time of this survey. 

 The Effect of Spring Freshets 



It hr>s been pointed out that the drainage waters from various 

 areas are of great importance in dealing with the hydrography of the 

 Bay of Fundy, The data considered up to this point were collected 

 in the late summer of 1929, It is to be expected that at the time of 

 Spring Freshets these drainage waters would be of greater importpince 

 to the region, also there vrould be a greater contrast between the 

 drainage waters and the waters peculiar to the Bgy itself. Due to 

 the difference in the area of the drained regions, certain rivers 

 supply a larger amount of fresh water than others. This would result 

 in a greater contrast in salinity between the waters flowing from the 

 varloTis areas de^lt with. In the Spring, there is little contrast in 

 the temperature of the waters from the vnrious sources, and at the 



