| Common name | Blueback |
| Language | English |
| Type | Vernacular |
| Official trade name | No |
| Rank | 2 - (Preferred common name (unique)) |
| Country | Canada |
| Locality | British Columbia |
| Ref. | Scott, W.B. and E.J. Crossman, 1973 |
| Life stage | adults |
| Sex | females and males |
| Core | color pattern(s) |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Name used for individuals in the late first ocean year stage, usually weighing 1,800 to 3,600 g. 'Blue' borrowed from Old French 'bleu' from Common Romance 'blavus' from prehistoric Germanic 'blaewaz', Indo-European root 'bhlewos' and related to Old Norse 'blá', i.e., livid (p. 68 in Ref. 11979); 'back' related to Old High German 'bah' and Old Norse 'bak' of prehistoric West and North Germanic 'bakam' (p. 47 in Ref. 11979). |