Biotic and abiotic constraints on algal communities in streams [microform] : the role of light, nutrients, scouring, and herbivory  /
Wellnitz, Todd Allan.
Eidgenössische Technische Hochschule Zürich.
Zürich : Swiss Federal Institute of Technology Zürich,
1997.
Diss. ETH No. 12301.
Thesis (doctoral) -- Swiss Federal Institute of Technology Zürich.
Includes bibliographical references.
Algal communities.