Table 1.

Samples analysed in this study

Species	Location	Age	na	Individual or bulked samples	Oxidized H2O2 (h)	Oxidized NaOCl (h)	Heated 110 °C (h)	Heated 140 °C (h)
Corbicula fluminalis	Snake River, Idaho	Holocene	4	B	0–264	0–240	0–2688	0–792
Margaritifera falcata	Snake River, Idaho	Modern	3	B	0–264	0–120	0–1344	0–864
Bithynia tentaculata	Stratford-upon-Avon	Holocene	50	B				0–96
Bithynia tentaculata	Cambridge	Modern	10	B		0–120
Valvata piscinalis	Funthams Lane, Unit G3	Pleistocene	15	I		48
Bithynia tentaculata	Funthams Lane, Unit G3	Pleistocene	25	I		48
Bithynia tentaculata	Purfleet, sample 6	Pleistocene	10	I		48
Bithynia tentaculata	Samples from 18 sites	Pleistocene	53	I		48
Valvata piscinalis	Samples from 12 sites	Pleistocene	43	I		48
Corbicula fluminalis	Samples from 6 sites	Pleistocene	17	I		48

Full site details are given in Penkman et al., 2007.

^anumber of individual shells analysed.