Dear Nambil,

Please have a look at these links

https://www.researchgate.net/post/Identification_of_freshwater_algae

http://www.landcareresearch.co.nz/resources/identification/algae/identification-guide/identify/guide/filamentous

http://www.toscano.es/en/applications/tech-papers/algae-identification-field-guide/

Good Luck

Dear Nambil,

Please check these useful links also.

http://publications.gc.ca/site/archivee-archived.html?url=http://publications.gc.ca/collections/collection_2011/agr/A125-8-2-2011-eng.pdf

https://www.niwa.co.nz/freshwater-and-estuaries/management-tools/identification-guides-and-fact-sheets/algae-id-guides

http://publications.gc.ca/site/archivee-archived.html?url=http://publications.gc.ca/collections/collection_2011/agr/A125-8-1-2011-eng.pdf

Best of Luck

Please can you give me some information about macroalgae identification guide in laboratory and field?

Hi Rezzoum Noreddine

Please find the attachment 

Please have a look at this link.

http://ebookinga.com/pdf/marine-algae-identification-guide