44 
BULLETIN OF THE BUREAU OF FISHERIES. 
Such a movement of the salmon has been reported by numerous observers and 
undoubtedly occurs ; but the tagging experiments have demonstrated that they do 
not make a single circuit of the grounds and then pass on. Recaptures from all 
the tagging experiments, without exception, indicate that the salmon tarry in this 
vicinity for a considerable period, often from two to three weeks, passing back and 
forth from Ikatan to Morzhovoi Bays and repeatedly running the gantlet of all the 
traps. Their behavior is very similar to that observed off river mouths, where 
salmon play back and forth on the tides in brackish water and are in repeated danger 
of capture. The efficiency of the Ikatan-Morzhovoi fishery is in no small measure 
dependent on the concentration of the salmon in this locality before proceeding on 
their farther migration. 
As accurate a record as possible was kept of the traps in Ikatan and Morzhovoi 
Bays, in which recaptures from the various taggings were made, but no evidence 
of any definite movements or regularity of appearance was secured. A purely 
haphazard movement of salmon seemed indicated. Those marked and liberated 
from any trap, whether located near the head of the bay or toward the outer end 
of the Ikatan Peninsula, were equally liable to be recaptured in Morzhovoi Bay 
or in any of the traps of the Ikatan group, although their appearance in Morzhovoi 
Bay was usually two or three days later than the beginnings of their recapture in 
Ikatan Bay. From these tagging experiments it was made abundantly clear 
that Ikatan and Morzhovoi Bays form parts of the same fishing grounds and deal 
with the same schools of fish, which pass back and forth from one to the other. 
No conclusive evidence was obtained, however, that any considerable proportion 
of the commercial run frequents either the local spawning grounds tributary to 
these bays or other local spawning grounds on the south side of the Alaska Peninsula. 
A considerable fishery exists at Thin Point, a few miles east of Morzhovoi Bay, 
but of the 2,500 salmon tagged in Ikatan and Morzhovoi Bays during the season 
but one individual was captured at Thin Point, and this was from the last tagging 
experiment of the season, conducted at Louisiana Cove, Ikatan Peninsula, on 
July 10. It is an interesting coincidence that from this last tagging comes also 
the single recapture that was made in Cold Bay immediately to the eastward of 
Thin Point. Quite evidently, the Thin Point and the Cold Bay rims did not circle 
Ikatan and Morzhovoi Bays in 1922 but approached their spawning streams by 
an independent course. 
A most important feature of the Ikatan tagging experiments consisted in the 
considerable number of marked salmon that passed into Bering Sea and were 
recaptured in the Port Moller district and on the various fishing grounds of Bristol 
Bay, including those off the mouths of the Ugashik, Egegik, Naknek, Kvichak, 
and Nushagak Rivers. One individual, tagged in Ikatan Bay on June 14, was 
captured on July 9 by a native fisherman at Quigiung, 25 miles above the mouth 
of the Kuskoquim River. Another from the same tagging was taken by a native 
at the Indian fishing village of Nondaulton on Lake Clark, above Iliamna Lake. 
Details of all recaptures from the Ikatan experiments are given in Tables 1 to 5, 
11, and 12. These amply demonstrate a movement throughout the season from 
the North Pacific into Bering Sea and indicate that a considerable contingent of 
