Why does my Pantheon data get into my iRecord download?

I have used Pantheon to analyse invertebrate assemblages on several nature conservation sites. The data used for these analyses comes from several different recorders, so that we get to investigate the most detailed species data.

I now find that when I download my iRecord data, all of this Pantheon data is included. But Pantheon and iRecord are two different systems, and do two very different things. So how do I stop this happening, and keep my iRecord data 'clean' ?

Thanks.