| Reference no. | Duecy, L., 2013 |
| Ecosystem | Puget Sound |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Since 2009, number of reproductive males is down 26%, and there are only 14 reproductive age males left. Threats include decrease in Chinook salmon that provides their calories, and increased stress from tour boats (Ref. 94272). Also in Ref. 94798. |