| Common name | O'opu |
| Language | Hawaiian |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Hawaii (USA) |
| Locality | |
| Ref. | Pukui, M.K. and S.H. Elbert, 1986 |
| Life stage | juveniles and adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Gathered by women from mountain pools and streams. This collecting was done chiefly by feeling with the hands, poking with a stick, turning over stones and logs, with a net ready to catch the animals that darted out from cover. During the flood season, men built platforms across the streams just under high water levels as floodgate for the less muddy waters where the o'opu took refuge from the silt washed into the stream. The water was then led off on to a plain where the fish were stranded on the porous soil and easily picked up (Ref. 7364). |