Ocean/Sea Regiona n # of NDc Regional Meanb Ocean/Sea Meanb
Pacific Sea of Cortez 25 6 1.4 ± 0.4 (0.2-6.5) 4.2
Galapagos 7 3 2.2 ± 1.5 (0.1-10.7)
Pacific 22 5 2.0 ± 0.9 (0.1-15.7)
Kiribati 1 0 4.2
Papua New Guinea 23 4 10.3 ± 5.1 (0.2-94.4)
Australia 16 8 4.8 ± 4.3 (0.1-68.7)
Indian Cocos 18 6 0.2 ± 0.1 (0.04-1.3) 23.1
Indian 4 4 ND
Chagos 12 6 0.1 ± 0.1 (0.1-0.7)
Seychelles 34 12 123.3 ± 122.9 (0.1-4179.0)
Maldives 35 24 0.3 ± 0.1 (0.3-2.1)
Sri Lanka 24 20 12.5 ± 12.4 (0.1-297.3)
Mauritius 29 13 1.9 ± 1.7 (0.1-49.7)
Mediterranean Mediterranean 23 4 1.5 ± 0.5 (0.2-9.5) 1.5
Atlantic Canaries 23 5 0.5 ± 0.1 (0.1-1.5) 5.9
Bahamas 2 0 11.2 ± 10.5 (0.6-21.7)
Global   298 120 16.9 ± 14.1 (0.04-4179.0)  
aRegions are named for the closest land body or ocean region
bAll data are presented in μg/gww ± standard error.
cWhales with nondetectable Ag levels had one-half LOD (0.04 μg/g) used in analysis.
n: Sample size
( ) Minimum and maximum values.
ND: Nondetect
Table 2: Global distribution of sperm whale skin Ag concentrations.