Table 2. Sex, age, and year of arrival or birth of study dolphins.
| S group |
Y group |
K group |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Subject | Sex | Age | Y.B.A | Subject | Sex | Age | Y.B.A | Subject | Sex | Age | Y.B.A |
| F1 | F | 22 | 1995 | Rana | F | 24 | 1995 | Na-gac | F | 20 | 1997 |
| Coo | F | 16 | 2004 | Alca | F | 16.5 | 1999 | Ma-rub | F | 20 | 1997 |
| Mammy | F | 17 | 2004 | Pearl | F | 16 | 1999 | Milkyb,c | F | 10 | 2005 |
| Ai | F | 9 | 2006 | Tiara | F | 19 | 1999 | Ti-kub,c | F | 9 | 2005 |
| Love | F | 9 | 2006 | Patti | F | 9 | 2005 | Tentenb,c | F | 10 | 2005 |
| Kururi | F | 10 | 2005 | Rasukyb,c | M | 0 | 2012a | ||||
| Crown | M | 3 | 2009a | (Mother: Milky) | |||||||
| (Mother: Tiara) | |||||||||||
All dolphins’ ages reflect that at the time of the start of observation and are the estimated age, except individuals who were born in aquarium. M = male, F = female, Y.B.A = year of arrival or birth.
aIndividual who was born in an aquarium.
bIndividual who was observed from July to September 2012.
cIndividual who was observed from October 2012 to April 2013.