Running pore adaptor on 1 D^2 data

[kanchanhole]

Hello, 1. I am running porechop on 1 D^2 data using the following command.

porechop -i input_reads.fastq.gz -o output_reads.fastq.gz

For 1D ~98% reads were trimmed for adaptors. however, for 1D^2 only ~ 65% reads were trimmed for adaptors.

I am unable to understand why is there this difference?

2. Is there any way to see which adaptor porechop is trimming?