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PACIFIC SCIENCE, Vol. XV, April 1961 
Fig. 25. Southeastern coast of Oahu, Hawaiian Islands (after U. S. Coast and Geodetic Survey Chart No. 
4110). 
the lack of algae on the mud bottom away from 
shore). This movement is demonstrated in the 
graphs of Figure 6. The relative size of any one 
modal group is progressively smaller in subse- 
quent collections (predation would have to be 
extremely heavy to achieve the same diminu- 
tion). The one seeming exception is the large 
collection of May 29. This, however, was made 
from a very large pool at Diamond Head which 
averages about 4 ft. in depth. A higher per- 
centage of larger manini were expected from 
this collection than previous collections which 
were all made in pools less than 2 ft. deep. 
Information on movements of adult manini 
was obtained from the recovery of tagged fish. 
Unfortunately, exact locality data for the areas 
of release and recovery were usually not avail- 
able. Since Nemoto was operating from a com- 
mercial vessel solely by virtue of the kindness 
of Kaolulo, he could not delay the fishing to 
take bearings or soundings. Most locality data 
from fishermen who recovered tagged manini 
were also very nonspecific. As a result, little is 
known of local movements of adults, and only 
migrations from one major area to the next or 
the lack of such migrations could be ascertained. 
Kaolulo’s traps are arranged in groups, most 
of which are well separated. Nemoto designated 
these areas as offshore from the following: 
Yacht Basin, Royal Hawaiian Hotel (Waikiki), 
Natatorium (near Kapiolani Park), Diamond 
Head, Black Point, Kahala, KULA antenna, 
Wailupe, Aina Haina, Kuliouou, Niu Peninsula, 
Portlock, and Koko Head ( Fig. 25 ) . 
Of the 281 recoveries of tagged manini 237 
were made by Kaolulo; 126 tagged fish, most 
of which were early recoveries by Kaolulo, were 
returned to the Division of Fish and Game with 
no record of where they were caught. This dif- 
ficulty arose because of his resorting to memory 
alone to recall the area where tagged fish were 
taken. When he caught several fish he usually 
admitted that he could not be sure where any 
of them were caught. He was finally persuaded 
to keep record of locality by tag number. 
One hundred and thirty-two tagged manini 
were recovered which exhibited no definite mi- 
gration. Ignoring fish released in Kewalo Basin 
for the moment, this leaves only 11 records 
which indicate that some migration might have 
occurred. Five of these were fish which were 
displaced from their home area by movement of 
