Data PolicyPublications | Institutes | Persons | Datasets | Projects | Maps [ report an error in this record ] Dr Nielsen, Claus Institutes (2) Dataset University of Copenhagen; Zoological Museum (ZMUC), more Direct contact at institute: E-mail: WoRMS Editorial Board (WoRMS editors), more Function: Taxonomic editor ERMS 2.0: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2025). European Register of Marine Species. Accessed at http://www.marbef.org/data/erms.php on yyyy-mm-dd, more