272 
BULLETIN OF THE BUREAU OF FISHERIES 
CONCLUSIONS 
A summary of the conclusions reached by the analysis of each character permits 
us to say with confidence that the following populations have been demonstrated to 
be independent: California, southern British Columbia, Craig, Chatham Strait, 
Stephens Passage, Prince William Sound, Kachemak Bay-Shuyak Strait, Shearwater 
BODY LENGTH IN MILLIMETERS 
Figure 23.— Percentage head length is of body length. Showing: A, southeastern Alaska; B, Prince William Sound; 
C, Shuyak Strait, lower Kachemak Bay, and Halibut Cove, (1) Dogfish Bay, (2) Halibut Cove 1927, (3) Halibut 
Cove 1926, (4) Lower Kachemak Bay 1927, (5) Shuyak Strait, (6) Lower Kachemak Bay 1926, and (7) Russian Harbor 
Bay-Old Harbor, Chignik, Shumagin Islands, Unalaska, and Golovin Bay. Dogfish 
Bay may also be a distinct stock, but more data is needed to confirm this. 
SPAWNING 
SPAWNING HABITS. 
The spawning habits of the Pacific and Atlantic herring differ somewhat. The 
Atlantic herring spawn on the gravelly bottom of the sea, usually in many fathoms 
of water, and in several cases on banks far from land. The Pacific herring, on the 
contrary, deposit the adherent spawn thickly on pliable vegetation, such as eel grass 
and seaweed that grows along the shore. The spawn is all deposited from near the 
high-tide line to only a few feet below low tide. The Pacific herring has never been 
known to spawn in deep water. Relative to spawning in shallow water, Fraser says 
(1922, p. 4): 
