I had same some while back, unfortunately no young shrimp though.
When I noticed the eggs, I read up somewhere that in the wild, shrimp-mom would go towards the sea and release her eggs into slightly salty water. All a bit much to emulate the right conditions, but it would be interesting to hear if anyone has managed to get any success. I tried to get a result the next time round, putting shrimp-mom in her own tank with lots of cover, then gradually added sea-salt. One day the eggs were no longer evident so I had to gradually take shrimp-mom back to FW conditions. Left the 'slightly salted' tank for about a month and no show for any young shrimp. I would be overjoyed if I could achieve a result, shrimps are really entertaining.