Report: Beach snail Littorina littorea: Determination of intersex index; Coast of Lower Saxony (2004)”

The present report summarises the results of the evaluation of the intersex determination at Littorina littorea from 5 stations on the Lower Saxony coast and the results of the evaluation of the STI (Shell-Thickness Index) at the Pacific Auster Crassostrea gigas from 3 stations in the Norderney port and 4 other ports on the Lower Saxony coast.