Ferries from Ancona to Split when can we purchase those tickets?

Are there any ferries running from Ancona to Split in April 2016? 
If yes, when can we purchase those tickets?
Is there left luggage in ferry terminal in Ancona?
we will arrive in ancona train station do you know which bus goes to ferry terminal?

yes ferries from ancona to split are running all year, check timetable here:

https://www.croatiaferries.com/ancona-split-ferry.htm

and current prices here:
https://www.croatiaferries.com/2015-prices-ferry-ancona-to-split.htm

book your ticket here using yellow search box

you can find left luggage at the train station where you arrive, the cost is about 4 euro per bag for a day.

bus no 12 goes from ancona train station to the ferry terminal, the ticket price is about 1.5 euro one way no advance booking is available for buses.

here is a ferry that can get you back from Split to Ancona:

https://www.croatiaferries.com/split-ancona-ferry.htm

best wishes