Efficiency of advanced wastewater treatment technologies for the reduction of hormonal activity in effluents and connected surface water bodies by means of vitellogenin analyses in rainbow trout (Oncorhynchus mykiss) and brown trout (Salmo trutta f. fario)

Environmental Sciences Europe

Table 6 Time schedule for exposure experiments performed at the bypass stations with fresh fertilized trout eggs

Start of exposure	End of exposure	Exposure duration	Exposure type	Trout species
Winter season 2012/2013 prior to the upgrade
07 Dec 2012	20 Mar 2013	103 days	Laboratory neg. control	Rainbow trout
07 Dec 2012	21 Mar 2013	104 days	Exposure in bypass systems	Rainbow trout
Results of exposure experiments using juvenile brown trout are published in Henneberg et al. [22].
Winter season 2013/2014 after the upgrade
24 Nov 2013	3 Mar 2014	99 days	Laboratory neg. control	Brown and rainbow trout
24 Nov 2013	4 Mar 2014	100 days	Exposure in bypass systems	Brown and rainbow trout
7 Mar 2014	28 Mar 2014	22 days	EE₂ control	Brown and rainbow trout