1. you have not implemented your feature according to recommendations. You should not be passing extra query string params to a cms page, you should have a supporting page and pass pageid, mid, and your extra params. CMS pages have a connonical url that does not include extra params. You can then also optionally implement friendly urls that map to your supporting page with the extra params (likle the blog feature or webstore does).
2. if you implement your feature the correct way then you can also implement a custom site map to submit urls for your feature to google, just as we have for blog, forums, or webstore products.
ie your bio page should have a modulecontrol that lists the staff and the links in the list go to a supporting page that shows the detail
Hope that helps,