| Common name | Blankaal |
| Language | German |
| Type | Vernacular |
| Official trade name | No |
| Rank | 3 - (Other common name) |
| Country | Germany (Federal Republic of) |
| Locality | |
| Ref. | Muus, B.J. and P. Dahlström, 1968 |
| Life stage | adults |
| Sex | females and males |
| Core | |
| 1st modifier | |
| 2nd modifier | |
| Remarks | Refers to the color change from yellow to white belly. Marks the adult stage that stops feeding and returns to the sea. |