Encounter rate (N/km2) (± SD), mean group size (± SD), number of sighted, newly-sighted and re-sighted dolphins and mean not-identified dolphins (± SD) each year.

In the first column, the percentage of adults, juveniles and calves and the percentage of females, males and dolphins with unknown sex sighted each year. In the last column the results of the test of significance among years for the mean encounter rate, group size and number of not-identified dolphins.Encounter rate (N/km2) (± SD), mean group size (± SD), number of sighted, newly-sighted and re-sighted dolphins and mean not-identified dolphins (± SD) each year.

本数据集第一列记录了每年观测到的成年、亚成体、幼崽海豚的占比，以及雌性、雄性及性别未知的海豚的占比。最后一列展示了不同年份间平均相遇率、群体规模以及未识别海豚数量的显著性检验结果。各年度统计指标还包括：相遇率（单位：N/km²，±标准差(Standard Deviation, SD)）、平均群体规模（±SD）、观测到的海豚总量、新发现海豚、重观测海豚的数量，以及平均未识别海豚数量（±SD）。