| Common name | Ts'iidu |
| Language | Haida |
| Dialect | Skidegate |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Canada |
| Locality | 53N132W British Columbia coast |
| Ref. | Jones, R., 1999 |
| Life stage | adults |
| Sex | spawning males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Refer to 'jacks' or small precocious males that return to spawn. |