Vladimir de Sales Nunes

6 Questions 17 Answers 0 Followers

Questions related from Vladimir de Sales Nunes

Could you give your opinion about what these freshwater cyanobacteria could be?

Hi everyone. I would really appreciate a second opinion about these freshwater cyanobacteria, at least about their genera. Any help is extremely appreciated! Thanks in advance!

16 July 2023 9,883 3 View

Could you identify these freshwater diatoms?

Hi everyone. I would really appreciate a second opinion about these freshwater diatoms, at least about their genera. Any help is extremely appreciated! Images are numbered and there's a scale bar...

16 July 2023 7,127 3 View

Are these structures heterocysts in these true-branched filamentous cyanobacteria?

Hi. I'm having some trouble in identifying heterocysts in my samples of true-branched filamentous cyanobacteria, mostly Stigonema. Are these structures pointed by the red lines heterocysts? I...

31 December 2022 1,588 7 View

What are these freshwater microscopic organisms?

I'm currently conducting a research on the phytoplankton composition of a series of ponds and water streams in moutain areas of my state (Bahia, Brazil). These organisms in the pictures are very...

03 July 2019 1,032 10 View

What are these aquatic microorganisms?

I'm currently conducting a research on the phytoplankton composition of a series of ponds and water streams in moutain areas of my state (Bahia, Brazil). These organisms in the pictures are very...

03 July 2019 6,126 6 View

Does this picture depict asexual reproduction in Staurastrum?

This organism belongs to a sample of freshwater phytoplankton collected in the end of 2018. Does it depict asexual reproduction in Staurastrum or it's just an image imperfection?

01 January 1970 4,940 3 View