Thank you for the super prompt response!
For the sequence counts summary:
I see, thanks for clarifying. I think I just wasn't quite understanding how paired-end sequencing worked (but I think I know what's going on now)! So if I'm thinking about the total number of sequences, e.g. If "sample A" has 100,000 forward sequence reads and 100,000 reverse sequence reads, would it be correct to say it has a total of 100,000 paired end reads? Or would it be 200,000 total paired-end reads?
For the sequence length summary:
That makes sense. We are using the 16S 515F-806R primers. I think what is surprising to me is that there isn't at least some variation, even by at least a few nucleotides. (For all of our sequencing runs so far, using the same exact primers, I have yet to see any variation in this.)
Got it, thanks!
Thanks again for your help!