TAGGING ADULT BED SALMON, 1922. 
43 
than in Morzhovoi Bay, which they would enter only by way of a detour. But 
the reverse is the case. In the majority of the Ikatan tagging experiments (seven 
in all) more of the fish were recaptured in Morzhovoi than in Ikatan Bay, and if 
totals are considered, of all the recaptures from the Ikatan experiments 154 were 
made in Ikatan Bay and 173 in Morzhovoi Bay. 
Two possible explanations occur to us. One is that a larger movement of fish 
takes place from Ikatan to Morzhovoi Bay than in the reverse direction. The other 
predicates a more efficient fishery in Morzhovoi Bay than in Ikatan Bay, although 
the number of traps is far less. The first of these explanations would seem valid 
if there were extensive spawning grounds tributary to Morzhovoi Bay, which would 
absorb a considerable percentage of the fish that enter the bay. Such grounds, in 
fact, do exist, but we have reasons, which we will not here discuss, to doubt their 
present efficiency. It is believed that in the season of 1922 comparatively few of 
the fish entering Morzhovoi Bay remained there to spawn, while practically none 
of them resorted to Thin Point, Cold Bay, Volcano Bay, or any of the minor 
spawning streams to the eastward. 
There remains the hypothesis of more intense fishing and less chance of escape 
on the part of salmon entering Morzhovoi Bay than of those circling around Ikatan 
Bay or passing through it. This, we believe, is probably the case. As we have 
shown, 30 per cent of the fish tagged in Morzhovoi Bay were recaptured in this bay, 
and 38^ per cent in all were retaken. This is far beyond the average recaptures 
from the Ikatan Bay experiments, which equaled 19 per cent for the first 1,800 
tagged. If the Morzhovoi traps catch a larger percentage of the fish that approach 
them than do the Ikatan traps, their effect on the rim must be carefully considered. 
3. Ikatan Bay, Louisiana Cove, East Anchor Cove . — The most extensive tagging 
program in 1922 was carried out in Ikatan Bay and on grounds along the shore 
of the Ikatan Peninsula, where 2,300 red salmon were marked and released on dates 
ranging from June 13 to July 10. 
This is the seat of an extensive fishery for red salmon, which are evidently 
intercepted on their spawning migration, with their final destination not obvious. 
The red salmon spawning grounds tributary to Ikatan Bay are wholly inconsider- 
able and are not worthy of attention as possible source of the salmon run of 
the bay. 
In order to secure as much information as possible concerning the movements 
of the salmon within the bay and along the Ikatan shore, the tagging experiments 
were conducted in six different traps, selected as embracing the entire fishing field. 
Two of these were at the head of the bay, on either side of the entrance to Isanotski 
Strait; one was in East Anchor Cove, near the outer extremity of the Ikatan Penin- 
sula and the outermost trap of the group ; another was in Louisiana Cove, the next 
trap site inside East Anchor Cove; and two others were intermediate in position 
between Louisiana Cove and the entrance to the pass. This distribution was expected 
to throw light on the theory widely held by the fishermen that salmon circled the 
shores of the bay once and then disappeared, being first seen on the eastward side 
of the entrance to Isanotski Strait and thence passing outward along the shores of 
the Ikatan Peninsula until they reached East Anchor Cove and vanished. 
