No. If you submit via the website, you will not need to send in a copy of your data to us. 

As you are now on the website - once you have pressed save you are done. You don't need to export the file to send it in to us. After the submission deadline (Please check the Submission schedule for these dates) we will take a copy of the database and use that information to publish the data-set. By pressing the save button on the website, you have already 'submitted' your surveys to the database.

You can export a copy of the the records for your own use - but we would not need you to send those in.