Dear Jose Louis,

I consider you and your co-authors have satisfactorily addressed both Reviewers' comments and therefore invite you to revise your manuscript accordingly. Then your revised manuscript should be uploaded online.

Please also consider the following minor suggestions:
- Caption of Fig. A2 "measured used a radiometer" : Replace "used" by "using"
- Unless justified otherwise, I think that plotting the vertical distribution of nitrates, picoplankton and bacteria in linear scale (instead of log10 scale) in Fig. A3 would be a lot more informative.
- Following both Reviewers's suggestions you removed the very last part of Section 5. Yet it is unclear in the Responses to Reviewers document which part precisely will be deleted. Although I agree that predicting future changes in picophytoplankton community is premature, I encourage you to keep a couple of sentences related to the implications of your results in the context of global climate change.

Sincerely,
Julia

Dear authors,
Thank you for providing a revised version of your paper which I consider suitable for publication in BG.
Although it is your decision, you may still consider acknowledging the reviewers in the acknowledgment section of your ms.
Sincerely,
Julia