The positively phototactic reaction of Daphnia magna Straus
Subtitle: a contribution to the understanding of diurnal vertical migration
Publisher: J.B. Wolters
Published: 1964
Place of publication: Groningen
Language: eng
Number of pages: 408
Notes: Issued also in Netherlands Journal of Sea Research, v. 2, no. 3, 1964.

Thesis (doctoral)--Utrecht.