No, you don't have to have DAZ/Studio to import Poser things into Bryce. You should just be able to find the character in your Poser files, import to Bryce. What you will most likely have to do is re-apply any textures you used on the character once it is on your Bryce screen.

DAZ/Studio however, does allow you to adjust poses.

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...