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. 2011 Jul 29;6(7):e22878. doi: 10.1371/journal.pone.0022878

Table 2. Abundance estimates for striped dolphins and fin whales from the 2009 winter and summer surveys.

Stratum L n E[s] (%CV) esw D (%CV) N (%CV) 95% CI(N)
Striped (winter 2009)
A 2932.6 28 7.42 (25.8) 238.5 (6.2) 0.1486 (39.4) 4593 (39.4) 2150–9811
B 2273.5 31 6.76 (15.4) 238.5 (6.2) 0.1932 (34.2) 4484 (34.2) 2278–8829
C 2938.3 47 9.07 (20.1) 238.5 (6.2) 0.3041 (30.4) 10 385 (30.4) 5728–18 829
Total 8144.5 106 0.2205 (20.9) 19 462 (20.9) 12 939–29 273
Striped (summer 2009)
A 3033.3 43 9.29 (27.9) 354.1 (5.4) 0.1859 (38.1) 5746 (38.1) 2761–11955
B 2264.8 53 12.05 (23.8) 354.1 (5.4) 0.3982 (34.4) 9241 (34.4) 4735–18034
C 3148.8 164 9.36 (13.1) 354.1 (5.4) 0.6881 (22.0) 23 501 (22.0) 15 217–36 294
Total 8446.9 260 0.4360 (17.2) 38 488 (17.2) 27 447–53 968
Fin (summer 2009)
A 3033.3 2 1.00 (0.0) 564.6 (12.7) 0.00058 (70.7) 18 (70.7) 5–66
B 2264.8 8 1.00 (0.0) 564.6 (12.7) 0.00313 (32.6) 73 (32.6) 38–140
C 3148.8 6 1.00 (0.0) 564.6 (12.7) 0.00169 (46.4) 58 (46.4) 23–142
Total 8446.9 16 0.00168 (27.4) 148 (27.4) 87–254

L = km surveyed on effort. n = number of primary sightings used in the analysis. E[s] = estimated mean group size (%CV). esw = effective strip half width in m (%CV). D = density (animals per km−2) (%CV). N = estimated abundance (%CV). 95% CI (N). CV = coefficient of variation and CI = confidence interval.