Table 2.
TSD prevalence levels (Prev) in Phocoenidae and Delphinidae stranded along the Californian coast in 2018–2021. Abbreviations are: Nt = total number; N pos = number of individual positives with tattoo skin disease, as determined by visual examination and, in four cases, also by histology.
| Females | Males | |||||
|---|---|---|---|---|---|---|
| Nt | N pos | Prev % | Nt | N pos | Prev % | |
| Phocoena phocoena | ||||||
| calf | 8 | 0 | 0 | 7 | 1 | 14.3 |
| juvenile | 3 | 1 | 33.3 | 11 | 9 | 81.8 |
| subadult | 5 | 3 | 60.0 | 11 | 8 | 72.7 |
| adult | 8 | 2 | 25.0 | 2 | 0 | 0 |
| Total | 24 | 6 | 25.0 | 31 | 18 | 58.1 |
| Delphinidae | ||||||
| calf | 3 | 1 | 33.3 | 1 | 0 | 0 |
| juvenile | 2 | 1 | 50.0 | 5 | 1 | 20.0 |
| subadult | 0 | 0 | - | 3 | 2 | 66.7 |
| adult | 2 | 0 | 0 | 3 | 0 | 0 |
| Total | 7 | 2 | 28.6 | 12 | 3 | 25.0 |