check this : http://www.pnas.org/content/110/9/3298.long
strontium isotope analysis in the Danube Gorge 8.2-7.9 ka suggests many farmers daughters prefered to marry HG fishermen in the Danube Gorge, as these HG had a better life than EEF
ultimately it was overpopulation because of neolithic population growth that ended this HG way of life
I hope we'll get some y-DNA from this period and area soon
I wonder whether this HG tribe finally went extinct or were they able to transform themselves into succesfull farmers ?