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Table 2 The female penis length (FPL) (mm) in female B. areolata during the 6 months of exposure to different nominal TBT concentrations

From: Ultrastructure of oogenesis in imposex females of Babylonia areolata (Caenogastropoda: Buccinidae)

TBT concentrations (ng as Sn/l) Female penis length (mm) (mean ± SE)
Exposure time (months)
1 2 3 4 5 6
0 (control) 0 0 0 0 0 0
1 0 0 0 0 0 0
10 0 1.7 ± 0.2 3.8 ± 0.4 3.6 ± 0.8 3.4 ± 0.9 3.3 ± 0.6
50 0 0 3.0 ± 0.4 2.7 ± 0.2 4.1 ± 0.1 2.7 ± 0.2
100 0 2.2 ± 0.2 3.3 ± 0.8 4.1 ± 0.5 3.6 ± 0.9 3.3 ± 0.5
500 0 4.2 ± 0.6 6.0 ± 0.6 5.4 ± 0.5 4.8 ± 0.2 4.6 ± 0.2